precious metal labware

Transcription

PLATINUM
L A B W A R E
Also includes
Analytical Fluxes
PRECIOUS METAL LABWARE
Trust the precious metal experts the next
time you need the tolerance of platinum
and other precious metal labware.
Johnson Matthey has been manufacturing
platinum labware for over 150 years.
Products are competitively priced on a
daily basis and standard items are in
stock for immediate shipment.
Analytical chemists worldwide rely on
Spectroflux alkali metal borate fusion
fluxes for consistency and accuracy in
sample preparation. We welcome your
inquiry and will offer advice for proper
flux selection. Call today for a quote or
to request a sample.
PLATINUM SCRAP
RECOVERY PROGRAM
ON-LINE PLATINUM
LABWARE SEARCH
See page 13
See Inside Back Cover
26 Parkridge Road • Ward Hill, MA 01835 USA
Tel. 1-888-343-8025 or 1-978-521-6401
Fax 1-978-521-6366 • E-mail: [email protected]
www.alfa.com
TABLE
OF
CONTENTS
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Your Choice of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Scrap Recovery Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Non-Wetting Platinum Gold Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Crucibles and Molds for Sample Bead Preparation . . . . . . . . . . . . . . . . . . . . 14
Crucibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Special Crucibles, Beakers and Combustion Boats . . . . . . . . . . . . . . . . . . . . . 22
Evaporating Dishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Special Analysis Dishes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Micro Chemical Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Utensils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Care and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Reference Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
SPECTROFLUX ANALYTICAL FLUXES
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Typical Materials Analyzed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Analytical Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Techniques for Specific Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Analytical Instruments that use Spectroflux . . . . . . . . . . . . . . . . . . . . . . . . . 49
Spectroflux Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
“Classic” Spectroflux Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Application Notes on “Classic” Spectroflux Products . . . . . . . . . . . . . . . . . . 52
New “Prefused” Spectroflux Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Specialized Spectroflux Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
©2007 Johnson Matthey Catalog Co., Inc.
How to Order/General Information
TELEPHONE
Specialty and Bulk Sales Service
1-888-343-8025 or 1-978-521-6401
Monday - Friday, 8:00am-5:00pm EST
FAX
Specialty and Bulk Sales
1-978-521-6366
MAIL
Alfa Aesar, A Johnson Matthey Company
26 Parkridge Road
Ward Hill, MA 01835
INTERNET
www.alfa.com
Our special web-based Platinum Labware
Search enables easy searching for all types
of platinum labware (see inside back cover
for more details).
E-MAIL
[email protected]
PRICING
Due to daily precious metal market
fluctuations, please call for up-to-date
pricing on precious metal labware.
SHIPPING
Whenever possible, we will ship products
by the method specified on your order.
Two-day delivery is standard within the
contiguous United States (overnight in
the Northeast). All orders are shipped
FOB seller’s shipping point.
TECHNICAL SERVICES
At your request, we provide technial
assistance and information with respect to our
products. Our Technical Service
Representatives are trained in specific product
lines to answer your questions regarding applications, specifications, product properties and
handling. Call 1-888-343-8025
MATERIAL SAFETY DATA SHEETS
Each product is automatically accompanied by a
Material Safety Data Sheet (MSDS) in compliance with OSHA. If one is not immediatley available, a copy will be sent via mail as soon as
possible. If an MSDS is needed prior to shipment of a product, please call 1-800-343-0660.
CERTIFICATES OF ANALYSIS
Spectroflux certificates of analysis are provided
with every order.
RETURN SHIPMENTS
Some materials are not returnable. Please refer
to Terms and Conditions of Sale at the end of
this catalog. Returned shipments cannot be
accepted unless prior arrangements have been
made. Requests for return authorization must be
made within 30 days of your receiving the materials.
TERMS OF SALE
Full details of Terms and Conditions are listed at
the end of this catalog. Our payment terms are
net 30 days of invoice. We accept corporate
credit cards.
NEW CUSTOMERS
We welcome new customers. Setting up an
account with Alfa Aesar is easy. Just call 1-888343-8024 and a customer service representative
will assist you.
Alfa Aesar is ISO 9001:2000 Certified.
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Precious Metal Labware
Introduction
Why Alfa Aesar?
Alfa Aesar, a Johnson Matthey company, offers its customers the unique opportunity to order all
of their laboratory products from one source, from platinum labware to reagent grade chemicals.
The analytical laboratory is a vital part of all industrial plants and research facilities. While many
analytical techniques have evolved over the years, one fundamental practice remains the same;
the use of high-purity inert materials. In this category, platinum has properties that make it the
ideal choice. It offers a high degree of inertness and can be readily fabricated into a wide variety
of products, from evaporating and special purpose dishes, beakers and electrodes to
microchemistry apparatus and utensils.
Our Zirconia Grain Stabilized (ZGS) line is also available in most labware items. ZGS offers
enhanced high temperature strength and, therefore, longer life at the same weight as
conventional platinum.
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Johnson Matthey, Alfa Aesar's parent company, has been manufacturing and marketing platinum
labware for over 140 years. With the development of the oxy-hydrogen blowpipe in 1801 in
Philadelphia, it was possible to melt such materials as platinum, iridium and rhodium. In 1832 the
inventor of the blowpipe, Robert Hare, hired a young man as an instrument maker at the
University of Pennsylvania. That young man was Joaquim Bishop. He became familiar with Hare's
oxy-hydrogen blowpipe and his achievements in melting platinum, and he is said to have made
some improvements to Hare's process. It is not, therefore, surprising to find that he left the
University in 1839 to become a "Machinist and Philosophical Instrument Maker".
In 1842 Bishop took up the refining and fabricating of platinum, employing the blowpipe in the
process. In 1845 he was awarded a silver medal for "skill and ingenuity in the manufacture of
platinum scientific instruments" by the Franklin Institute.
In 1858 he moved out of Philadelphia to Radnor, Pennsylvania, in search of space and privacy. In
1865 he moved again to Sugartown, a few miles south of Malvern, Pennsylvania, and there he
bought an estate of 43 acres where he built a fabrication shop, a smiths' shop for forging, a
melting room and a refining laboratory. Metal was melted in 20-ounce units and a great variety of
small laboratory essentials were produced. The staff was only two or three in number and Bishop
himself was his own skilled workman and salesman.
Introduction
Joaquim Bishop was active in the business until about two years before his death in 1886. His
assistant Edwin Cox carried on the business until 1890 when Bishop's grandson and heir, J. B.
Matlack, came of age. In January of 1903, the workshop and refinery, with all papers and records,
were completely destroyed by fire. The business, however, was immediately reorganized, with
Matlack as President and Charles H. Kerk as Secretary and Treasurer. In 1909 the company was
incorporated as J. Bishop & Co. Platinum Works and continued until 1931 when it was acquired by
London-based Johnson Matthey & Co., Ltd. It became Matthey Bishop, Inc. in 1967 and Johnson
Matthey, Inc. in 1980.
To this day, platinum is without equal in its usage in many laboratory applications.
Platinum resists the action of almost all acids and is unaffected by a wide variety of corrosive
substances. It has a high melting point (1769˚C), a low heat capacity, and can be heated in air
without any weight loss due to oxidation.
This section of our catalog provides you with a comprehensive guide to our laboratory products
line. We will be happy to provide you with immediate price and delivery information, and to quote
on non-standard items. Complete scrap recovery and refining services are also offered for worn or
damaged items, which can be remade to the item of your choice.
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ZGS Platinum
Zirconia Grain Stabilized
Platinum
ZGS Platinum Materials for Even Better Performance
The use of Platinum and its alloys (up to 25%) is well established in the automotive, chemical,
glass, electrical and dental industries. However, these applications often require high-temperature
operation of these alloys. At high temperatures conventional platinum group metals are subject to
grain growth and, therefore, are weak and subject to creep deformation. They can also be subject
to contamination failure.
Johnson Matthey has developed zirconia grain stabilized (ZGS) platinum that is resistant to grain
growth and, therefore, contamination and deformation at high temperatures.
An exclusive development by Johnson Matthey, ZGS platinum now makes available a superior
material that offers significantly improved performance over conventional platinum materials. ZGS
platinum materials are produced by incorporating a fine insoluble phase, dispersed uniformly
throughout the platinum metal matrix, a process called dispersion strengthening.
The principle of grain stabilization has been established in the base metal world for some time.
The difficulty had always been in achieving production of grain-stabilized material on a large
scale and to a consistent property specification. However, experts at Johnson Matthey developed
a unique process to meet these requirements, and has been using it for over 15 years.
Metallurgical Stability at Elevated Temperatures
Zirconia grain stabilization provides greater resistance to grain growth, dislocation movement and
grain boundary sliding. These problems normally occur in conventional platinum at high
temperatures, causing sagging, bulging and cracking.
In ZGS platinum and ZGS platinum 10% rhodium, the finely dispersed ZrO2 ceramic particles are
evenly distributed in the grains and on the grain boundaries. The dispersant in the regions
between the grains resists or impedes grain growth and grain boundary sliding. The dispersion
within the grain impedes the movement of dislocations within the grain itself. Note its effectiveness
in the accompanying microstructure photographs.
Information given herein is based on data which, to the best of our knowledge, is reliable, but Johnson Matthey makes no
warranties expressed or implied as to its accuracies and assumes no liability.
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Platinum
100x magnification of pure platinum sheet after heating for 500 hours at 1400˚ C shows typical
grain growth
100x magnification of ZGS platinum sheet after same heat and time shows how the grain growth
has been greatly retarded.
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ZGS Platinum
How ZGS Behaves at Room Temperature
Property
100%
Pt
Pt
10% Rh
Pt
20% Rh
ZGS
Pt
ZGS Pt
10% Rh
Specific
Gravity
(g/cm3)
21.4
20.0
18.8
21.4
19.8
Electrical
10.6
Resistivity
at 0 C (32 F)
18.4
20.0
11.12
21.2
0.0017
0.0014
0.0031
0.0016
48.0
70.0
26.5
51.5
90
115
60
110
(microhm. cms)
Temp Coeff. 0.0039
of Electrical
Resistivity
0-10 C
Ultimate
18.0
Tensile Strength
Platinum
(32-212 F)
(kpsi-annealed)
Hardness
(VHN)
40
How ZGS Alloys Behave at Working Temperatures
Fig. 1
Figure 1 illustrates graphically the dramatic improvement in high-temperature life achieved by
grain stabilization.
The time to failure at 1400˚C under a stress of 1425 psi shows that ZGS Pt lasts up to twice as
long as the best conventional Pt-Rh alloy and ZGS Pt 10% Rh lasts more than 10 times as long
as ZGS Pt.
In terms of the rate of deformation before failure, ZGS materials are at least 1,000 times better
than Pt 25% Rh.
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Ultimate Tensile Strength at Elevated Temperatures (KPSI-Annealed)
Temperature (˚C)
1000
1100
1200
1300
1400
1500
100% Pt
3.4
2.4
1.85
1.14
0.57
-
Pt 10% Rh
11.9
8.8
6.8
5.5
4.4
3.4
Pt 20% Rh
33.4
23.5
14.4
9.95
7.1
5.5
ZGS Pt
7.4
6.5
5.4
5.1
4.1
3.4
ZGS Pt 10%
23.7
20.3
18.2
13.4
12.1
10.2
Why Use ZGS?
Platinum
It resists contamination failure for extended periods and extends crucible life.
ZGS offers an opportunity to reduce component weight while maintaining material integrity.
ZGS is produced in 500 troy ounce batches which are totally consistent in properties.
Products are available in ZGS Platinum, ZGS Platinum 10% Rhodium and ZGS Platinum 5%
Gold. Other alloys available upon request.
Successful ZGS Platinum Applications Include:
Products where high temperature causes creep, distortion and ultimately failure of unsupported
conventional platinum and its alloys. ZGS platinum-rhodium bushings, used for the production of
continuous filament glass fiber, resist creep-induced sagging and eliminate the need for costly
structural platinum supports.
Glass-carrying apparatus designed with thinner wall sections, yet having 50% greater useful life.
Lightweight thermocouple sheaths fabricated with walls one-half the conventional thickness.
Coreless stirrers, ZGS platinum often makes possible the elimination of molybdenum and
ceramic cores, improving service life and reducing potential inservice problems.
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Your Choice of Materials
Only a few metals are required to produce a wide array of durable labware. The basic noble metals
group consists of platinum, rhodium, ruthenium, osmium, palladium, iridium, gold and silver.
Ruthenium and osmium, however, are unworkable in their pure form, and are only offered under
special circumstances. On the following page, we have assembled information on the most
common metals and alloy combinations for labware.
Platinum
Pure platinum has excellent resistance to chemical attack by acids and fusion mixtures. The bulk of
our laboratory ware is manufactured with Johnson Matthey labware platinum. This contains 99.8%
pure platinum, plus small amounts of iridium and rhodium for added strength and durability.
Platinum-Rhodium
When physical conditions require high labware strength at all temperatures, a platinum 10%
rhodium alloy offers superior performance to pure platinum. It is not recommended for applications
that involve repeated fusions, since it is slightly more susceptible to chemical attack than pure
platinum.*
*Rhodium oxides may form which could volatilize off causing weight loss and a weakened material.
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ZGS Platinum
After repeated use at very high temperatures, pure platinum labware begins to sag, bulge and
crack. Johnson Matthey Inc. developed ZGS platinum to compensate for this metallurgical
instability. ZGS platinum is a grain stabilized platinum with enhanced high-temperature properties.
As a result of its greater strength at high temperatures, ZGS platinum offers the opportunity for
longer life and better resistance to low-level contamination. More specific information on ZGS
platinum is contained on the data sheet that follows later in this catalog.
Platinum-Gold Non-Wetting Alloys
Platinum 5% gold is commonly used in sample preparations of glass beads for X-ray fluorescence
analysis in the glass, cement and ceramic industries. This is because of the "non-wetting" property,
conferred on the platinum by the gold addition, which results in easy removal of samples after
fusion.
Also, Alfa Aesar offers extra strength and durability in its exclusive ZGS platinum 5% gold formula.
The ZGS product is a stronger, more creep-resistant, high-temperature alloy. It also provides
superior resistance to low-level contamination. Additional information on platinum-gold non-wetting
alloys is contained in a data sheet that follows later in this catalog.
Look for Alfa Aesar's Spectroflux® brand line for superior quality
alkali metal borate based fluxes for use in a variety of analytical methods.
Silver
Silver apparatus is sometimes preferred for fusions with alkali hydroxides.
Gold
Gold is sometimes used for hydrofluoric acid treatment of siliceous materials.
Iridium
Pure iridium crucibles are widely used for the growing of crystals from high-purity melts at
temperatures of up to 2200˚C. Further details on iridium crucibles are available upon request.
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Platinum Labware Scrap Recovery Program
Platinum Labware Recovery
Program
Alfa Aesar's Platinum Labware Recovery program is unique in the industry, offering you a
cost-effective way to purchase new labware by returning your used labware for credit.
Additional benefits to the Program include:
The highest reclaim available
Many replacement crucibles in stock for same day shipment
Most credits issued within 72 hours of receipt of material
·
·
·
Turn your used crucibles into new ones!
Call 1-888-343-8025 extension 6459.
Return authorization numbers issued for customers only. Other terms may apply.
1-888-343-8025
13
Non-Wetting Platinum-Gold
Apparatus
Non-Wetting Platinum-Gold Apparatus
Flux fusions are widely employed on a routine basis for the preparation of samples for X-ray
fluorescence and other instrumental and classical analysis techniques.
Several types of automatic equipment are available for this work, and specially designed crucibles
and molds are produced by Johnson Matthey for use with this equipment. Although the table lists
standard sizes only, crucibles and molds for automatic equipment such as Claisse, Perl X2,
LECO, Herzog and other forms are also available. Normally, non-wetting Pt 5% Au alloy is used
for this work, although any alloy or material may be specified.
Johnson Matthey developed ZGS platinum 5% gold especially for non-wetting applications. It
combines the workability and non-wetting properties of ordinary platinum 5% gold with the hot
strength of rhodium platinum alloys, yet is easier to fabricate and offers better stability. Its
resistance to contamination makes it ideal for use in X-ray fluorescence sample preparation.
ZGS platinum 5% gold from Johnson Matthey is dispersion strengthened to give it up to twice the
working life of ordinary non-wetting gold-platinum labware. Its grain structure is stabilized by the
introduction of very fine zirconia particles dispersed evenly throughout the platinum-gold matrix in
minute quantities. The nobility of the alloy is fully maintained at this trace particle level.
Dispersion strengthening properties are maintained up to 90% of the true melting point of the alloy
-- approximately 2705˚F. The strengthening process also helps prevent the gold from leaching out,
which assures that the labware will keep its non-stick characteristics throughout its longer life.
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Claisse Form Crucibles
Stock
No.*
Fig No.
Capacity
(ml)
20110
121
20
21135
121
25
21827
121
25
Dimensions (mm)
(B = crucible)
Bottom
(A = rim)
Dia (D)
34 (crucible)
41 (rim)
35 (crucible)
44 (rim)
37 (crucible)
43 (rim)
Ht (C)
Approx
Wt (g)
21
35
26.0
21
35
26.0
20
32
30.0
Ht (C)
Approx Wt (g)
5.5
5.0
6.6
5.5
6.0
6.6
6.6
7.0
15.0
20.0
42.0
16.0
29.0
26.0
34.5
30.0
Claisse Form Molds
21651
20296
20087
21830
21136
21423
21424
21828
Fig No.
122
122
122
122
122
122
122
122
Dimensions (mm)
Top Dia (A)
31 (mold) 40 (rim)
39 (mold) 47 (rim)
35 (mold) 44 (rim)
30 (mold) 37 (rim)
40 (mold) 47 (rim)
40 (mold) 49 (rim)
40 (mold) 49 (rim)
32 (mold) 41 (rim)
Apparatus
Stock No.*
Uranium Fusion Dish
Stock No.*
Fig No.
Dimensions (mm)
(B = crucible) (A = rim)
Ht (C)
Approx Wt (g)
20041
123
17.46 (crucible) 17.84 (rim)
3.18
2.3
Note: Weights are for 5% Au, 95% Pt, those for ZGS 5% Au, 95% Pt and 3% Au, 10% Rh, 87% Pt are similar.
*Stock numbers reflect Platinum 5% Gold alloy.
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Crucibles and Molds for Sample Bead Preparation
used in XRF, ICP, AA Analysis
Crucible for Philips Perl’X
Dimensions (mm)
Stock No.*
H
B
A
T
21353
21876
21404
21657 (lid)
40
40
40
-
41
41
41
-
50
50
48
-
0.5
0.5
0.5
-
T2
R
0.8
0.9
0.8
-
2.0
2.0
4.5
-
1
Est. wt. (g)
83
116
78
28
Apparatus
A
T
1
H
R
T
1
B
Casting Mold for Philips Perl’X
Dimensions (mm)
Stock No.*
21831
21832
21406
21405
A
B
C
D
E
F
G
H
Est. wt. (g)
32
32
32
32
30.5
30.5
30.5
30.5
31.5
31.5
31.5
31.5
45
45
45
55
55
55
55
65
1
1
1
1
3
3
3
10
0.5
0.7
1
1
26
41
52
63
A
B
H
F
G
C
D
E
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Casting Mold for Philips Perl’X
Dimensions (mm)
Stock No.*
21403
21758
21720
A
B
C
D
E
F
G
H
Est. Wt. (g)
65
65
65
40.5
31.5
32.0
39.5
30.5
30.5
0.5
0.5
0.5
10.0
10.0
11.5
3
3
3
1.0
1.0
1.0
1.0
1.0
1.0
63
56
60
Apparatus
A
B
C
D
E
H
G
F
Casting Crucible for Herzog Automatic Fusion Machine
Dimensions (mm)
Stock No.*
A
B
C
D
E
F
21385
21875
50
50
38.5
38.5
30
30
1.0
1.5
3.5
3.5
39.5-40.0
39.5-40.0
Est wt. (g)
83
180
A
F
C
D
E
B
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Crucible for Leco FX-100 and FX-200 Automatic Fluxer
Dimensions (mm)
Stock No.*
A
B
C
D
E
20321
21747
37
35
20
21
35.0
38.5
0.60
0.45
5
5
Est. wt. (g)
45
35
A
Apparatus
E
C
D
B
Casting Mold for Leco FX-100 and FX-200 Automatic Fluxer
Dimensions (mm)
Stock No.*
A
20322
20886
44
47
B
35
39
C
D
Est. wt. (g)
.76
.76
0.8
6.5
32.0
45.5
A
B
C
D
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Crucibles
Cruicibles
All Johnson Matthey crucibles are designed to withstand hard and varied use. Reinforced tops and
bottoms can be supplied for added strength without adversely affecting capacity or fit of the cover.
Non-standard crucible sizes and lids are available upon request.
Most crucibles are constructed of platinum, but customers may also request specially
manufactured crucibles made from our list of alloys.
Platinum Labware Scrap Recovery Program
Alfa Aesar's Platinum Labware Recovery program is unique in the industry, offering you a costeffective way to purchase new labware by returning your used labware for credit. Additional
benefits to the Program include:
·The highest reclaim available
·Many replacement crucibles in stock for same day shipment
·Most credits issued within 72 hours of receipt of material
Turn your used crucibles into new ones!
Call 1-888-343-8025 extension 6459.
Return authorization numbers issued for customers only. Other terms may apply.
1-888-343-8025
19
Low Form Crucibles - Wide Bottom - Fig. 22
Cruicibles
Low Form - Wide Bottom Dimensions (mm)
Cap
(ml)
Top
Dia (A)
8
10
15
20
25
30
35
40
50
60
70
80
90
100
110
125
200
250
28
29
35
36
37
43
43
44
49
50
51
56
57
57
65
66
85
87
Bottom
Dia (B)
Ht (C)
17
17
23
23
23
27
27
27
30
30
30
34
34
34
40
40
55
55
17
20
20
25
30
27
30
34
34
39
44
42
46
50
42
46
44
52
Crucible
Wall (D)
Wt (g)
0.17
0.17
0.21
0.23
0.25
0.26
0.27
0.29
0.31
0.31
0.31
0.31
0.29
0.30
0.34
0.45
0.52
0.52
6.0
7.0
11.0
15.0
19.0
22.0
25.0
30.0
37.0
42.0
47.0
51.0
52.0
59.0
68.0
97.0
150.0
174.0
Stock
No.*
Standard
Cover
Only
20489
20095
20122
20015
20178
20017
20480
20338
20248
20690
21101
21102
21103
20211
20891
21104
21108
21109
1.5
2.0
3.0
4.0
6.0
6.0
6.5
7.0
8.0
9.0
12.0
14.0
15.0
23.0
24.0
25.0
30.0
40.0
Stock
No.*
20700
20004
20181
20016
20182
20018
20467
20187
20072
20691
21125
21126
21127
20212
20727
21128
21129
21131
Note: Weights are for platinum. Conversion factors for other materials and alloys appear in Reference Data.
*Stock numbers reflect Platinum only.?Platinum alloy dimensions may vary.
20
1-888-343-8025
Low Form Crucibles - Wide Bottom Reinforced — Fig. 22A
Low Form - Wide Bottom Dimensions (mm)
Top
Dia (A)
Bottom
Dia (B)
8
10
15
20
25
30
35
40
50
60
70
80
90
100
110
125
200
250
28
29
35
36
37
43
43
44
49
50
51
56
57
57
65
66
85
87
17
17
23
23
23
27
27
27
30
30
30
34
34
34
40
40
55
55
Crucible
Ht (C) Wall (D) Wt (g)
17
20
20
25
30
27
30
34
34
39
44
42
46
50
42
46
44
52
0.23
0.22
0.27
0.28
0.30
0.32
0.35
0.35
0.38
0.40
0.41
0.44
0.45
0.45
0.48
0.53
0.62
0.62
80
9.0
14.0
18.0
23.0
27.0
32.0
36.0
45.0
54.0
63.0
72.0
81.0
88.0
95.0
114.0
180.0
210.0
Stock
No.*
Standard
Cover
Only
20003
21111
20179
20180
20147
20166
21132
20554
20071
20484
21113
20852
21115
20114
21117
21121
21123
21124
1.5
2.0
3.0
4.0
6.0
6.0
6.5
7.0
8.0
9.0
12.0
14.0
15.0
23.0
24.0
25.0
30.0
40.0
Stock
No.*
20700
20004
20181
20016
20182
20018
20467
20187
20072
20691
21125
21126
21127
20212
20727
21128
21129
21131
Cruicibles
Cap
(ml)
*Stock numbers reflect Platinum only.
1-888-343-8025
21
Standard Form Crucibles — Fig. 25
Standard Form Dimensions (mm)
Cap
(ml)
Cruicibles
5
8
10
15
20
25
30
35
40
50
60
70
80
90
100
110
125
150
200
250
500
Top Bottom
Dia
Dia
Ht
(A)
(B)
(C)
21
23
24
30
32
32
38
39
39
45
46
47
52
53
54
58
59
68
70
72
95
12
12
12
17
17
17
23
23
23
27
27
27
30
30
30
34
34
40
40
40
55
18
26
31
27
34
40
34
38
43
40
46
52
49
53
58
54
60
53
67
79
91
Wall
(D)
0.15
0.16
0.15
0.20
0.22
0.23
0.25
0.26
0.27
0.31
0.33
0.31
0.30
0.28
0.29
0.33
0.33
0.40
0.43
0.44
0.53
Crucible
Wt (g)
4.0
6.0
7.0
11.0
15.0
19.0
22.0
25.0
30.0
38.0
46.0
50.0
51.0
52.0
59.0
68.0
76.0
100.0
135.0
165.0
306.0
Standard
Stock Cover
Stock
No. Only
No.*
wt (g)
20277
20157
20023
20024
20025
20019
20150
20141
20502
20042
20002
20985
20104
20986
20096
20987
20238
20988
20143
20275
20989
1.5
1.8
2.0
3.0
4.0
5.0
6.0
6.5
8.0
8.0
8.0
13.0
14.0
17.0
17.0
17.0
17.0
23.0
25.0
30.0
45.0
Capsule
Cover
Only
wt (g)
20990
20991
20013
20149
20124
20020
20177
20155
20314
20043
20619
20992
20993
20994
20142
20995
20996
20669
20997
20198
20998
6.0
8.0
9.0
10.0
11.0
13.0
14.0
15.0
17.0
19.0
21.0
23.0
23.0
23.0
-
Stock
No.*
20014
21001
20184
21002
21003
21005
21006
21007
21008
21009
21010
21011
21012
21013
22
1-888-343-8025
PlatLabware catalog0607.qxd
11/6/2006
12:17 PM
Page 23
Standard Form Reinforced Crucibles — Fig. 27
Standard Form Dimensions (mm)
Cap
(ml)
21
23
24
30
32
32
38
39
39
45
46
47
52
53
54
58
59
68
70
72
95
12
12
12
17
17
17
23
23
23
27
27
27
30
30
30
34
34
40
40
40
55
18
26
31
27
34
40
34
38
43
40
46
52
49
53
58
54
60
53
67
79
92
Wall
(D)
0.19
0.21
0.20
0.25
0.26
0.28
0.31
0.33
0.33
0.37
0.38
0.39
0.42
0.44
0.44
0.45
0.45
0.46
0.48
0.49
0.60
Crucible
Wt (g)
5.0
8.0
9.0
14.0
18.0
19.0
27.0
32.0
36.0
45.0
54.0
63.0
72.0
81.0
90.0
95.0
106.0
114.0
150.0
180.0
346.0
Standard
Capsule**
Stock Cover
Stock
Cover
Stock
No. Only
No.*
Only
No.*
wt (g)
20010
20427
20012
20251
20123
20111
20284
20200
20233
20049
20869
20103
21018
21019
20498
21020
21021
20666
21022
20118
21023
1.5
1.8
2.0
3.0
4.0
5.0
6.0
6.5
8.0
8.0
8.0
13.0
14.0
17.0
17.0
17.0
17.0
23.0
25.0
30.0
45.0
20990
20991
20013
20149
20124
20020
20177
20155
20314
20043
20619
20992
20993
20994
20142
20995
20996
20669
20997
20198
20998
6.0
8.0
9.0
10.0
11.0
13.0
14.0
15.0
17.0
19.0
21.0
23.0
23.0
23.0
-
20014
21001
20184
21002
21003
21005
21006
21007
21008
21009
21010
21011
21012
21013
Cruicibles
5
8
10
15
20
25
30
35
40
50
60
70
80
90
100
110
125
150
200
250
500
Top Bottom
Dia
Dia
Ht
(A)
(B)
(C)
**Diameter of hole must be specified when ordering.
Crucibles and casting molds/dishes are available in a number of designs and patterns including
Claisse, Perl X2, Perl X3, Labor Scheops, Leco, and Herzog. These crucibles can be supplied in
either 5% Gold 95% Platinum alloy or ZGS 5% Gold 95% Platinum alloy.
1-888-343-8025
23
Special Cruicibles, Beakers
and Boats
Special Crucibles, Beakers and Combustion Boats
Special crucibles, beakers and combustion boats can be supplied in platinum and platinum
alloys. Sizes other than standard are available on special order.
Volatile Matter Form
Stock No.
21511
21510
21509
21508
21495
21506
21517
Dimensions (mm)
Cap (ml)
Top Dia
Ht
(A)
(B)
10.0
15.0
20.0
25.0
30.0
40.0
50.0
25
29
32
34
37
42
43
30
33
36
38
41
44
46
Approx Weights (g)*
Crucible
Cover, Flanged
or Capsule**
8.0
12.0
16.0
20.0
24.0
32.0
42.0
6.0
8.0
9.0
10.0
11.0
13.0
14.0
**Diameter of hole must be specified when ordering.
Flanged Cover
Capsule Cover
24
1-888-343-8025
Combustion Boats
Stock No.
Combustion Boats
20033
20052
20051
21581
21565
20267
22024
Standard Form Fig. 83
Dimensions (mm)
Length Width
Depth
38
51
64
76
89
102
38
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
9.5
5.0
Approx.
Weight(g)*
3
4
5
8
10
12
7
Special Cruicibles, Beakers
and Boats
Standard Form
Fig. 83
Beakers
Dimensions (mm)
Stock
No.
Cap (ml)
Dia
Ht
Wall
Thickness
21577
21570
21572
21571
21573
21575
21576
21578
21579
21580
30
30
100
100
250
250
500
500
1000
1000
37
37
51
51
70
70
89
89
100
100
34
34
54
54
67
67
87
87
134
134
0.25
0.30
0.30
0.38
0.38
0.45
0.38
0.45
0.45
0.56
Approx Weights (g)*
Cover
Beaker
Plain Type
27.5
33.0
69.6
87.0
147.0
177.0
250.0
300.0
490.0
600.0
6.0
6.0
14.0
14.0
25.0
25.0
34.0
34.0
41.0
41.0
*Weights are for platinum. Conversion factors for other materials and alloys appear in Reference Data.
When ordering, please specify figure number and capacity in ml.
1-888-343-8025
25
Evaporating Dishes
Evaporating Dishes
Johnson Matthey manufactures standard form evaporating dishes of semi-round bottom and round
bottom types in capacities from 8-500ml. They can be supplied with reinforced tops or bottoms, and
covers upon request. Pouring lips are provided on all standard dishes, unless otherwise specified.
Most dishes are constructed of platinum but other alloys are available. Our standard dish patterns
are shown on the following pages. In addition to these patterns, Johnson Matthey can custom
fabricate dishes to your own designs.
26
1-888-343-8025
Standard Form Dishes - Semi-Round Bottom — Fig. 5
Standard Forms (mm)
Cap
(ml)
Dia (A)
Wall (C)
14
17
17
21
24
22
25
29
28
33
30
37
42
36
40
47
34
51
57
58
0.12
0.13
0.12
0.11
0.12
0.14
0.15
0.15
0.16
0.17
0.19
0.21
0.22
0.22
0.24
0.25
0.27
0.28
0.29
0.32
4.0
5.0
6.0
7.0
8.0
12.0
15.0
17.0
20.0
25.0
33.0
42.0
50.0
55.0
65.0
80.0
94.0
111.0
128.0
160.0
31
32
40
41
42
52
53
54
61
62
74
76
78
90
91
93
103
105
107
117
Stock
No.*
Standard
Cover
Only
Stock
No.*
21032
21033
20549
21034
20309
20612
35416
20086
20628
20710
20152
21035
20299
20191
20153
20499
20105
20026
21036
21037
2.0
4.0
6.0
6.0
6.5
13.5
13.5
13.5
17.0
22.0
25.0
28.0
28.0
31.0
34.0
41.0
50.0
50.0
58.0
67.0
21038
20250
20464
20615
20609
21039
21040
20409
21041
20887
20172
21042
20318
21043
21044
20422
21045
21046
21047
21048
Evaporating Dishes
8
10
15
20
25
35
40
50
60
75
100
125
150
175
200
250
300
350
400
500
Ht (B)
Dish
Wt (g)
1-888-343-8025
27
Standard Form Dishes - Semi-Round Bottom Reinforced - Fig. 1
Standard Form (mm)
Cap
(ml)
Evaporating Dishes
8
10
15
20
25
35
40
50
60
75
100
125
150
175
200
250
300
350
400
500
Dia (A)
Ht (B)
Wall (C)
Dish
Wt (g)
14
17
17
21
24
22
25
29
28
33
30
37
42
36
40
47
34
51
57
58
0.16
0.16
0.18
0.18
0.17
0.19
0.21
0.23
0.22
0.23
0.24
0.24
0.24
0.26
0.26
0.28
0.30
0.31
0.32
0.36
5.0
6.0
9.0
11.0
12.0
16.0
20.0
25.0
27.0
33.0
40.0
48.0
55.0
66.0
72.0
88.0
105.0
123.0
141.0
177.0
31
32
40
41
42
52
53
54
61
62
74
76
78
90
91
93
103
105
107
117
Stock
No.*
Standard
Cover
Only
Stock
No.*
21024
21025
20462
20879
20534
20478
21026
20133
20486
35368
20307
20848
20308
21027
20108
20278
21028
21029
21030
21031
2.0
4.0
6.0
6.0
6.5
13.5
13.5
13.5
17.0
22.0
25.0
28.0
28.0
31.0
34.0
41.0
50.0
50.0
58.0
67.0
21038
20250
20464
20615
20609
21039
21040
20409
21041
20887
20172
21042
20318
21043
21044
20422
21045
21046
21047
21048
28
1-888-343-8025
Standard Form Dishes - Round Bottom - Fig. 6
Std Form - Round Bottom
Dimensions (mm)
Cap
(ml)
Ht
(B)
14.5
16.5
16.5
19.5
22.5
23.0
24.5
28.5
28.5
32.5
32.0
37.0
41.5
39.0
43.0
49.0
48.0
53.0
57.5
62.0
Wall
(C)
0.12
0.13
0.12
0.11
0.14
0.13
0.15
0.15
0.17
0.17
0.18
0.19
0.20
0.21
0.23
0.24
0.25
0.28
0.29
0.31
Dish
Wt (g)
Stock
No.*
Standard
Cover
Only
Stock
No.*
4.0
5.0
6.0
7.0
10.0
12.0
15.0
17.0
22.0
23.0
33.0
40.0
48.0
55.0
66.0
80.0
94.0
117.0
132.0
165.0
21049
21050
35386
21051
20888
21052
21053
20117
21054
20311
20097
21055
20079
21056
20873
21057
21058
20027
21059
21060
4.0
5.0
6.0
8.5
13.5
13.5
17.0
17.0
22.0
25.0
28.0
31.0
31.0
34.0
34.0
41.0
50.0
50.0
58.0
63.0
21061
20640
21062
21063
21064
21065
21066
21067
21068
21069
21070
21071
21072
21073
21074
21075
21076
21077
21078
21079
Evaporating Dishes
8
10
15
20
25
35
40
50
60
75
100
125
150
175
200
250
300
350
400
500
Dia
(A)
34
35
45
46
47
58
58
59
66
67
82
84
85
98
99
100
115
116
117
126
1-888-343-8025
29
Standard Form Dishes - Round Bottom Reinforced - Fig. 2
Evaporating Dishes
Standard Form - Round Bottom Dimensions (mm)
Cap
(ml)
Dia (A)
Ht (B)
8
10
15
20
25
35
40
50
60
75
100
125
150
175
200
250
300
350
400
500
34
35
45
46
47
58
58
59
66
67
82
84
85
98
99
100
115
116
117
126
14.5
16.5
16.5
19.5
22.5
23.0
24.5
28.5
28.5
32.5
32.0
37.0
41.5
39.0
43.0
49.0
48.0
53.0
57.5
62.0
Wall (C)
Dish
Wt (g)
Stock
No.*
0.15
0.15
0.15
0.15
0.17
0.18
0.21
0.21
0.21
0.23
0.21
0.21
0.20
0.25
0.25
0.27
0.28
0.31
0.32
0.35
5.0
6.0
8.0
9.0
12.0
16.0
20.0
24.0
27.0
33.0
39.0
44.0
48.0
65.0
73.0
88.0
104.0
138.0
145.0
182.0
21080
20494
21081
21082
21083
21084
21085
21086
20657
21087
21088
21270
21089
21090
20406
21091
21092
21093
21094
21095
Standard
Cover
Only
4.0
5.0
6.0
8.5
13.5
13.5
17.0
17.0
22.0
25.0
28.0
31.0
31.0
34.0
34.0
41.0
50.0
50.0
58.0
63.0
Stock
No.*
21061
20640
21062
21063
21064
21065
21066
21067
21068
21069
21070
21071
21072
21073
21074
21075
21076
21077
21078
21079
30
1-888-343-8025
Special Analysis Dishes
Iron & Steel Analysis (Blair Form with Wire Rim)
Stock No.
20163
21507
21539
21538
21537
21536
21803
21534
21533
21532
21531
Capacity (ml)
30
50
100
125
200
225
250
280
300
400
500
Dimensions (mm)
Diameter
Height
Approx Wt.
48
57
68
70
86
87
89
91
92
110
112
25
28.5
30
35
42
47
51
55
58
54
60
16.0
22.0
40.0
45.0
65.0
71.0
75.0
81.0
85.0
125.0
150.0
Fig. 7
*Weights are for platinum. Conversion factors for other materials and alloys appear in Reference
Data. When ordering, please specify figure number and capacity in ml.
1-888-343-8025
31
Flat Bottom Perpendicular Sides
Stock No.
Capacity (ml)
21524
20466
21522
21566
21521
21540
21520
21519
21741
21458
21864
21798
21467
21466
Dimensions (mm)
Diameter
Height
30
40
45
51
57
63
68
71
83
83
83
85
90
100
16
18
18
19
22
25
30
30
30
35
40
40
50
55
15
20
30
40
55
80
100
125
150
175
200
250
300
400
Approx Wt. (g)*
10.0
15.0
20.0
20.0
28.0
32.0
35.0
40.0
48.0
51.0
56.0
70.0
80.0
100.0
Fig. 9
Water Analysis
Dimensions (mm)
Stock
No.
Fig.
No.
Cap (ml)
Dia
Ht
Approx
Weight (g)
20410
20313
12
13
50
100
64
76
22
29
18.0
20.0
Fig. 12
Fig. 13
Sugar Incineration
Fig. 14
Fig. 15
Cap (ml)
21459
21457
21455
21453
21451
21449
21483
21492
21490
21470
21456
21454
21452
21450
21481
21460
21491
21489
8
10
12
15
20
25
30
30
35
Dimensions (mm)
Dia
Ht
31
34
36
41
45
48
41
51
56
12
13
13
16
16
17
25
17
19
Approx.
Wt. (g)*
7.0
8.0
9.0
12.0
15.0
18.0
18.0
20.0
21.0
Fig. 14
Fig. 15
32
1-888-343-8025
Sugar Analysis
Stock No.
Capacity (ml)
21488
21487
21486
21485
21484
20525
20323
Dimensions (mm)
Diameter
Height
32
41
41
41
48
48
70
16
18
19
22
22
25
35
10
18
20
25
30
35
100
Approx Wt. (g)*
5.0
9.5
10.0
12.0
14.0
16.0
40.0
Fig. 16
Weights are for platinum. Conversion factors for other materials and alloys appear in Reference Data.
Fuel Cup (ASTM D-129-64)
Capacity (ml)
20297
Dimensions (mm)
Diameter
5
27
Height
Approx Wt. (g)*
12
Stock No.
11.0
When ordering, please specify figure number and capacity in ml.
Fig. YP440
Incinerating Dish
Stock No.
Capacity (ml)
Dimensions (mm)
Diameter
Height
Approx Wt. (g)*
30
54
16
15.0
21836
Fig. 19
Incineration Tray
Stock
No.
Fig
No.
20134
21478
21818
20254
21469
17
17
17
18
18
Cap (ml)
12
15
25
12
20
Dimensions (mm)
Length
Width
52
48
63
38
50
27
35
41
38
50
Ht
10
10
11
10
10
Approx.
Wt (g)*
9.0
16.0
24.0
12.5
21.0
Fig. 17
Fig. 18
Mineral Analysis
Stock No.
Capacity (ml)
21474
21472
38
38
Dimensions (mm)
Diameter
Height
Approx Wt. (g)*
35
35
10
20
11.5
16.6
Fig. YP442
Fig. YP448
1-888-343-8025
33
Micro Chemical Apparatus
Standard Micro Crucible
Dimensions (mm)
Stock
No.
Fig.
Cap
(ml)
20047
20199
YP-66
1.3
Dia
Ht
Wall
12
12
14
14
0.25
0.56
Approx Weight (g)
Crucible
With
Only
Cover
3.0
7.0
3.7
-
Fig. YP-66
Standard Micro Crucible
Dimensions (mm)
Stock
No.
Fig.
20119
YP-67
Cap
(ml)
Dia
Ht
Wall
Approx
Weight (g)
20.0
28
40
0.18
12.0
Fig. YP-67
Micro Boat
Dimensions (mm)
Stock
No.
Fig.
20519
YP-69
Length
Width
Ht
Overall
Length
Approx
Weight (g)
12
4
4
16
0.6
Fig. YP-69
Micro Dish
Dimensions (mm)
Stock No.
35415
34
Fig.
Dia
Ht
Approx
Weight (g)
YP-70
10
2
0.10
Fig. YP-70
1-888-343-8025
Combustion Boats
Dimensions (mm)
Stock
No.
Fig.
No.
Desc.
20301
20022
20099
ACS - Size A
(1.5mg
samples)
ACS - Size B
(5.25mg
samples)
ACS - Size C
(samples up to
50mg)
Approx
Weight
(g)
Length
Width
Ht
Overall
Length
A
6.5
4.5
4
8.5
0.55
B
12
5
4
16
0.7
C
34
5
4
38.5
1.8
Spiral Cathode Electrode
Dimensions (mm)
Stock
No.
Fig.
20289
YP-72
Dia
Stem Dia
Overall
Dia
45
1
125
Approx
Weight (g)
Fig. YP-72
12.5
Platinum Alloy-Tipped Forceps
Dimensions (mm)
Tip Contact
Length
Stock
No.
Fig.
20203
YP-96
Overall
Length
Approx
Weight (g)
178
7.0
13
Fig. YP-96
Spatulas
Stock No.
21667
21668
20185
21669
Fig.
Length (mm)
Approx Weight (g)
YP-97
YP-97
YP-97
YP-97
50
80
120
124
0.8
1.35
2.0
2.0
Fig. YP-97
Micro Pregl Boat
Dimensions (mm)
Stock
No.
Fig.
20100
YP-98
1-888-343-8025
Length
Width
Ht
Approx
Weight (g)
35
5
4
0.8
Fig. YP-98
35
Utensils
Utensils
Tongs
Stock
No.
20085
20195
20032
20088
20089
Fig.
No.
Description
Platinum-tipped,
50-1
stainless steel
Hollow platinum tips,
50-2
reinforced and heavy
duty
Solid platinum tips
51
Platinum tips extending 52
over end
Platinum tips inserted
53
in end
Length
(mm)
Approx
Weight (g)
254
2.0
254
5.0
240
318
6.0
18.0
308
12.0
Fig. 50
Fig. 53
*When ordering, please specify figure number.
Fig. 52
Triangles
Stock No.
Description
Fig. No
For Crucibles with Capacity
21544
21545
Twisted Ends
Flat Ends
70
71
10 to 80ml
10 to 80ml
Fig. 70
36
1-888-343-8025
Spatulas
Stock No.
20303
21554
20094
Fig. No.
Length (mm)
Approx Weight (g)
89
90
91
75
100
125
6.0
8.0
16.5
Fig. No.
Length (mm)
Approx Weight (g)
56
75
6.0
Platinum Tipped Tweezers
Stock No.
20050
Fig. 56
Inoculation Loops
21231
21236
21226
20965
21387
21227
21287
21228
21233
21229
98123
21239
21235
21243
20610
Description
Platinum 3.5%
Rhodium
Platinum 3.5%
Rhodium
Platinum 15%
Iridium
Platinum 15%
Iridium
Platinum 15%
Iridium
Platinum 15%
Iridium
Platinum 15%
Iridium
Platinum 15%
Iridium
Platinum 3.5%
Rhodium
Platinum 3.5%
Rhodium
Platinum 3.5%
Rhodium
Platinum 5%
Iridium
Platinum 5%
Ruthenium
Platinum 5%
Ruthenium
Platinum 5%
Ruthenium
1-888-343-8025
Fig No.
Loop
Int Dia(mm)
Utensils
Stock
No.
Wire
Shank
Dia(mm) Length(mm)
BR100
4
0.91
25
BR102
4
0.91
75
IN100
1
0.30
45
IN104
2
0.41
45
IN105
3
0.41
45
IN108
3
0.51
45
IN108
3
0.51
70
IN109
5
0.51
45
IN110
1.45
0.41
25
IN111
1.45
0.41
50
IN112
1.45
0.41
75
IN115
3
0.51
45
IN120
3
0.41
45
IN121
5
0.41
45
IN122
4
0.58
75
37
Elcetrodes
Electrodes
In constructing general service electrodes, platinum is the only material that offers sufficiently
high electrical conductivity, mechanical strength and resistance to electrolyte and chemical
attack. For most analysis, the best cathode is an ordinary gauze cylinder. This material offers
greater surface area than equal weight of plain or perforated foil, and allows the electrolyte to
circulate more freely.
Johnson Matthey designs its electrodes with a round stem that is flattened at the point of the
gauze attachment. Additionally, the gauze is welded to the frame to prevent sagging. Large
fillets are also provided at all joints in the frame structure for support. Johnson Matthey
designs its electrodes for long service life, and we can modify them to accommodate any
special application.
Our electrodes are designed to minimize sharp bends and awkward shapes that might cause
solution entrapment. All seams and joints are welded - no rivets or solder is employed.
Usually furnished with a bright finish, electrodes can also be supplied with satin or brushed
finish. When desired, identification numbers can be added.
Only the most commonly used electrodes are included in this catalog. Many hundreds of
special electrodes have been produced by Johnson Matthey, and can be supplied to meet
individualizedspecifications. The stems and reinforcements of the electrodes shown below
are supplied in platinum 5% ruthenium. Other alloys are available upon request.
38
1-888-343-8025
Gauze Forms
Fig. 40
Fig. 68
Fig. 41
Fig. 69
Fig. 45A
Dimensions (mm)
Cylinder
Overall
Ht
Ht
50
100
50
125
Cylinder
Dia
25
13
50
25
25
40
50
50
150
125
125
Stock
No.
20283
21873
-20076
20078
Approx Weight (g)
Type 36/2
Stock
Type 39/1
Gauze*
No.
Gauze**
22.0
20481
16.5
16.0
20330
13.0
-18.0
17.0
20270
20075
20077
11.0
12.0
11.0
Electrodes
Figure
Number
40
41 (propeller has
25mm dia)
45A
68, Open Cylinder
69, Closed Cylinder
* Type 36/2 gauze has openings nominally 0.36mm square, wire dia 0.2mm. (45x45)
** Type 39/1 gauze has openings nominally 0.39mm square, wire dia 0.1mm. (52x52)
Wire Forms
Fig. 42
Fig. 62
Stock
No.
Fig.
No.
Cylinder
Dia
20319
20304
20201
62
61
42
16
25
25
1-888-343-8025
Dimensions (mm)
Cylinder
Ht
50
-
Fig. 61
Overall
Ht
Approx
Weight (g)
125
125
100
10
10
6
39
Care and Use
Care and Use
Care and Use
Care and Use
Platinum ware can be heated in many atmospheres commonly employed for laboratory
experimentation such as:
Air, nitrogen and oxygen
Oxides of nitrogen
Bromine and iodine vapors
Hydrogen
Carbon dioxide
Platinum ware is suitable for numerous chemical research applications such as ignitions, fusions,
evaporations and glass production. These are usually accomplished in oxidizing atmospheres.
In addition, platinum has characteristics that make it exceptionally qualified for electrolytic usage in
the laboratory. In the construction of electrodes, platinum provides an excellent combination of
electrical conductivity, mechanical strength and resistance to electrolytic and chemical attack. Both
cathode and anode remain constant in weight during electrolysis, and deposits can be easily
dissolved after weighing without damage to the electrodes.
Platinum laboratory ware can provide numerous advantages when properly employed. Some of the
basic guidelines for use in various applications are outlined here.
Alfa Aesar offers a crucible cleaning kit containing all of the materials you'll need to safely clean most
types of crucibles.
Stock No. Description
Cleaning Kit for Laboratory Crucibles
37995
40
Quantity
1each
$
POR
1-888-343-8025
Care and Use
Operating Temperatures
The following maximum operating temperatures are recommended for all applications:
Material
Platinum
ZGS Platinum
Platinum 10% Rhodium
ZGS Platinum 10% Rhodium
Platinum 5% Gold
ZGS Platinum 5% Gold
Temperature
1400˚C
1500˚C
1550˚C
1600˚C
1300˚C
1400˚C
Ignitions
Platinum ware is widely used for ignitions. Although platinum is subject to attack during ignition by
an easily reducible substance, the risk of damage can be avoided by taking proper precautions in
accord with the materials involved.
Ignition of filtered precipitates
Care and Use
Care and Use
Platinum laboratory ware can be utilized in ignitions of the following precipitates:
Barium sulfate
Alkaline earth carbonates, oxalates, etc.
Sulfates of metals not readily reducible
Oxides not readily reducible include Al2O3, MgO, BaO, CaO, SrO, TiO2, ZrO2, ThO2, MoO3, WO3,
Ta2O5, Cr2O3, Mn3O4, and in the absence of carbonaceous matter: ZnO, Co3O4, NiO, CdO.
2
The moist filter paper containing the precipitate is dried in a platinum crucible or dish by preheating
on a hot plate or suitable gauze over a gas burner. After drying, the dish is transferred to the area
in front of the hot open muffle of a furnace operating at 800˚C. Within 10 to 15 minutes, the paper
will become completely charred. The dish should then be placed about 2 in. inside the muffle where
it should remain until nearly all carbonaceous matter has been burned off. The removal of the last
traces of carbon and the decomposition of the precipitate may require a somewhat higher
temperature. This can be applied without detriment to the platinum, providing that reducing
conditions are avoided. Free access to recirculating air is recommended. Where suitable care is
exercised to assure safety, such precipitates as MgNH4PO4, MgNH4AsO4 and CaWO4 may be
ignited.
Determination of ash in organic material
A shallow dish should be used, and the contents heated well forward in a hot open muffle until
combustion is nearly complete. Combustion can be accelerated if the surface is disturbed from
time to time. After all carbonaceous matter has burnt away, final combustion can be conducted in
the hot zone of the muffle.
Determination of volatile matter in fuels
Particular care should be exercised in this operation. In as much as it is essential that a
nonoxidizing atmosphere be maintained in the crucible to prevent loss of free carbon, there is
danger of contamination of the platinum dish. This is particularly true if the fuel is rich in sulfur or
phosphorous compounds.
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41
Care and Use
Fusions
Sodium carbonate. When sodium carbonate is employed, the loss of weight of the platinum
amounts to only a fraction of a milligram.
Sodium carbonate mixed with sodium nitrate or nitrite. Nitrates or nitrites in the fusion
mixture cause heavier losses of platinum than sodium carbonate by itself, but the losses are not
likely to exceed one to two milligrams under ordinary laboratory conditions.
Sodium borate or sodium metaphosphate. Platinum is unaffected by borax at low
temperatures. Sodium metaphosphate attacks the metal only at very high temperatures or under
reducing conditions.
Alkali bifluorides. When alkali bifluorides are used, the loss of weight of the platinum is
practically nil.
Alkali chlorides or alkali earth chlorides. Both attack platinum above 1000˚C in the presence
of air which liberates chlorine from the fused salt. In a neutral atmosphere, these chlorides are
inert.
Alkali bisulfates. When alkali bisulfates are involved, platinum is attacked slightly above 700˚C.
The attack can be diminished by adding ammonium sulfate.
When any of the previous fusion agents (except alkali bifluorides) are employed, traces of platinum
should be sought in making an accurate analysis. Platinum can be precipitated with the
hydrogen sulfide group.
Evaporations
Platinum laboratory ware can be employed in evaporations containing the following:
1. Sulfuric acid with or without hydrofluoric acid
2. Hydrofluoric acid
3. Hydrofluoric and nitric acid when the halides (especially chlorides) are absent
4. Hydrochloric acid in the absence of oxidizing agents that yield nascent chlorine
5. Alkali hydroxides or carbonates where contamination of the solution with silica must be avoided
6. Sodium peroxide solutions
Electrolytic Operations
Electrochemical methods of analysis have been widely adopted because of their speed, simplicity
and economy. In multiple analyses of a routine nature such as the determination of copper in
brasses and aluminum alloys, several solutions can be electrolyzed simultaneously. In single
determinations, the analyst can attend other operations while electrolysis is in progress.
Platinum electrodes can be used to advantage in numerous applications:
1. As anodes in most electrolytes except strongly acid chloride solutions.
2. As cathodes for the deposition of metals from acid, alkaline or ammoniacal solutions. For the
deposition of zinc, gallium and bismuth, the platinum should first be copper-plated to prevent
superficial alloying with the deposited metal.
Glass Production
When producing glass in a platinum alloy vessel, all batch materials must be fully oxidized and
silica-bearing refractory materials must be avoided in order to insure long vessel life. When
cleaning the vessel to remove glass residue, soak in 50% hydrofluoric acid at no more than 180˚F.
Do not allow HF to boil. This process may take several days. To speed up glass removal,
occasionally remove vessel from acid bath and scrub soft glass residue away. Make sure skin is
protected; hydrofluoric acid will leave serious burns.
42
1-888-343-8025
Care and Use
Care and Use
Fusions in platinum ware should always be performed under oxidizing conditions, using materials
that are free from organic substances. During fusion and cooling, the material should come in
contact only with platinum or a clean refractory. Commonly used fusion agents affect platinum in
the following manner:
Care and Use
Conditions to Avoid When Using Platinum Labware and Platinum Fabricated
Products.
When heated, platinum can be attacked by certain atmospheres, solids, fusions and vapors. The
following should be avoided, as noted, when high temperatures (greater than 1000˚C) are involved:
Atmospheres
1. Ammonia: Darkens the surface and makes it less lustrous. In time, it will develop pores and
create a crystalline appearance.
2. Sulfur dioxide: Promotes the formation of sulfur trioxide. As a result, the platinum surface is
coated with platinous sulfide.
3. Chlorine: Converts the metal into a mass of crystals because of the alternate formation and
decomposition of platinous chloride.
4. Volatile chlorides: Especially those that decompose readily.
5. Highly carburetted gases and vapors: They aggressively attack the metal with the possible
formation of PtC2 and make it very brittle. Hence, platinum ware should never be heated in the
reducing zone of a gas flame.
1. Aqua Regia.
2. Hydrochloric acid and oxidizing agents.
3. Concentrated sulfuric acid: It is harmful when extended periods are involved. In most
laboratory applications, the action is so slow that it is usually negligible.
4. Concentrated phosphoric acid: The action is noticeable only after prolonged heating.
Care and Use
Care and Use
Liquids
Solids (including their fusions and vapors)
1. Sulfur, selenium and tellurium: The action of sulfur vapor is very slow and prolonged heating
is required to produce any serious effects. Selenium and tellurium combine readily with platinum.
2. Phosphorus, arsenic and antimony: Combine with platinum readily.
3. Magnesium pyrophosphate: Harmful above 900˚C.
4. Silica and borax: Harmful at high temperatures.
5. Molten lead, zinc, tin, bismuth, silver, gold or copper, or mixtures that form these metals by
reduction. All combine readily with platinum to form a lower melting point eutectic alloy.
6. Fused alkali oxides and peroxides, to a lesser degree in the presence of air, alkali hydroxides.
7. Fused nitrates: The action is intensified by the presence of alkali hydroxides or carbonates, but
is not severe in any case.
8. Fused cyanides: Plantinocyanides are formed.
9. Iron oxide above 1200˚C: At this temperature, oxygen is liberated and the iron combines with
the platinum.
10. Silica, silicates, alumina and magnesia above 1600˚C: At lower temperatures, no action
occurs.
11. Fused alkali and alkali chlorides in the presence of air at 1000˚C or above.
12. Lead and bismuth oxides above 1250˚C.
1-888-343-8025
43
Reference Data
Reference Data
Reference Data
Physical Properties of the Platinum Group Metals
and Other Precious Metals
Comparative Table of Metric, Troy and Avoirdupois Weights
44
1-888-343-8025
Reference Data
Weight Conversion Factors
Reference Data
Reference Data
To convert platinum weights to other precious metals, use the following factors: Weight of Metal
Desired = Appropriate Multiplier x Platinum Weight.
Platinum Sheet Data
1-888-343-8025
45
Reference Data
Reference Data
Reference Data
Resistance in Ohms/Foot (at 20˚C) of Platinum and
Selected Alloys
Platinum Wire Data
46
1-888-343-8025
Reference Data
Platinum Wire Data
Reference Data
Reference Data
1-888-343-8025
47
Abbreviations and Codes
The following abbreviations are used throughout our listing of products.
AAS
AES
ACS
Spectroflux
Analytical Fluxes
APS
anhy
Å
÷
approx.
Atm
b.p.
(c)
°C
cc
cm
cont.
cP
cS
d.
dec.
dia.
ea.
eV
°F
f.p.
FSSS
F.W.
g
g/l
GLC
GC
HPLC
ICP
ID
in
incl
IR
J/mol.K
kg
L or l
lb
m
M
mg
æ
æg
meq
Merck
æm
max
micron
mm
m.p.
mol
mmol
M.W.
Mw
Mn
Mw/Mn
48
Atomic absorption spectrometry
Atomic emission spectrometry
Chemicals meeting the specifications outlined
by the American Chemical Society
Average particle size
Anhydrous
Angstrom
Approximately
Approximately
Atmospheres
Boiling point in °C at 760mm pressure, unless
otherwise specified
Contained weight of active material
Celsius
Cubic centimeter
Centimeter
Contained
Centipoise
Centistoke
Density
Decomposes
Diameter
Each
Electron volt
Fahrenheit
Flash point
Fisher sub-sieve sizer
Formula weight
Gram
Grams per liter (gas density)
Suitable for use in gas liquid
chromotography
Gas chromotography
High-performance liquid chromotography
Inductively Coupled Plasma
Inner diameter
Inch
Includes
Infrared
Joule(s) per mole Kelvin
Kilogram
Liter
Pound
Meter
Molarity of solution
Milligram
Micro
Microgram
Milliequivalent
The Merck Index
Micrometer (micron)
Maximum
Micrometer
Millimeter
Melting point
Mole
Millimole
Molecular weight
Weighted averaged molecular weight
Number averaged molecular weight
Monodispersity value
N
Ë
Normality of solution
Refractive index for the sodium D line at
20 °C (or temperature indicated)
nm
Nanometer
New product
NMR
Nuclear magnetic resonance
OD
Outer diameter
optical gr. Suitable for optical applications
pc(s)
Piece(s)
pH
Value taken to represent the acidity or
alkalinity of an aqueous solution
POR
Price on request
ppb
Parts per billion
ppm
Parts per million
prec.
Precipitated
Primary
Analytical reagent of exceptional purity,
Standard for standardizing volumetric solutions and
preparing reference standards
PTFE
Poly(tetrafluoroethylene)
Purified
A grade of higher quality than technical,
often used where there are no official
standards
P.T.
Passes test
P.V.
Pore volume
Reagent Reagent grade
REM
Rare earth metal
(REO)
Rare earth oxide base - content of specific
rare earth element in comparison to total
rare earths present
S.A.
Surface area
Sp.Gr.
Specific gravity
Sp.Rot.
Specific rotation
subl.
Sublimes
Tc
Critical temperature
TLC
Thin-layer chromotography
TSCA
Toxic Substance Control Act
UN
Hazardous material transportation
identification number
œ
Wavelength in nanometers
wt
Weight
w/w
Weight/weight
w/v
Weight/volume
XRD
X-ray diffraction
È
Air sensitive
É
Moisture sensitive
Ê
Hygroscopic
ß
Light sensitive
>
Greater than
²
Greater than or equal to
<
Less than
³
Less than or equal to
[]
Numbers in brackets after the chemical
description indicate the Chemical Abstract
Service Registry Number
- mesh # 90% particles pass through screen having
a given mesh size
+ mesh # 90% particles are retained by a screen
having a given mesh size
Ì
Denotes substance is listed in Toxic
Substance Control Act (TSCA) inventory
1-888-343-8025
Spectroflux® Analytical Fluxes
Introduction
Alfa Aesar has a world-renowned reputation for consistently supplying the highest quality analytical
fluxes to the cement and steel industries and to geo-scientists for mineralogical applications. For
more than 30 years chemists have relied on Spectroflux alkali borate fusion fluxes for use in
methods such as direct reading optical or X-ray emission spectrometers, atomic absorption
spectrometers, spectrophotometers, polarographs, ion selective electrodes, inductively coupled
plasma or classical analytical techniques. Our batch specific analysis ensures reproducibility and
accuracy of your results. Alfa Aesar offers a wide range of fluxes and supplies customized
formulations to meet specific analytical requirements.
Key Features of Spectroflux Products
• Consistent bulk density
• Large batch sizes
• Good homogeneity
• Highest degree of purity, min 99.95%
• Low loss on fusion
• Available in quantities from 50g samples to 100Kg batches
Spectroflux
Analytical Fluxes
• Each batch is analysed for 27 inorganic impurities and loss on fusion
• All orders are supplied with a batch specific certificate of analysis
• Delivered in 1Kg or 5Kg sealed containers
• Standard fluxes are available from stock
• Our flux is priced competitively
Typical Materials Analyzed
The analysis of refractory materials can be reduced to a simple, accurate procedure with the use of
Spectroflux analytical fluxes. Fusion with a molten alkali metal borate flux provides a rapid and
simple means of dissolving chemically stable materials to yield glass-like, solid solutions. The
method eliminates any inhomogeneity of particle size, density or composition in the analytical
sample taken. (See page 49 for detailed sample preparation details). Samples of a wide variety of
materials may be prepared in a simple manner for analysis by instrumental or chemical
techniques. Typical materials analyzed using flux fusion are shown below.
• Aluminosilicate refractories
• Minerals and ores
• Aluminum ores: aluminas
• Niobium and tantalum ores
• Carbides
• Rare earth ores
• Cement, raw mix and finished; concrete
• Silicates and aluminosilicates
• Chrome ores and refractories
• Phosphate and carbonate rocks
• Coal ashes and furnace deposits
• Soils
• Copper ores; slags and concentrates
• Tin ores and concentrates
• Iron ores: iron and related slags
• Titanium ores
• Iron sinters; steel slags ferro-alloys
• Tungsten ores
• Lead ores and slags
• Welding fluxes
• Manganese ores and slags
• Zircons: silicon and boron carbides
• Metal alloys
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49
Analytical Techniques
Spectroflux analytical fluxes can be used in conjunction with direct reading optical or X-ray
fluorescence(XRF) spectrometers, atomic absorption (AA) spectrometers, inductively coupled
plasma (ICP) atomic emission spectrometry, spectrophotometers, polarographs, ion selective
electrodes or classical analytical techniques. Whichever method is chosen, Spectroflux analytical
fluxes offer the analyst the benefits of speed and analytical precision.
Sample Preparation Guidelines
Many different procedures have been described in the literature for preparation of solid solution
bead samples, suitable for XRF analysis. The general method for the preparation of materials for
XRF analysis involves taking known weights of the flux and sample in an appropriate ratio
(e.g.10:1), then fusing and allowing the melt to cool to produce a stable, transparent,
homogeneous and crack-free bead.
Spectoflux
Analytical Fluxes
To ensure homogenous mixing, the samples should be ground to a particle size of <100µm. To
obtain the same ratio of flux to sample for each separate analysis, it is essential to ignite the
sample before weighing. The weight of the flux used should then be adjusted to compensate for
the observed loss on ignition of the sample. Alternatively a mathematical correction may be
applied.
The flux should also be ignited at about 700°C to remove any moisture absorbed during storage.
The ignited sample and flux are transferred into a non-wetting platinum alloy crucible and the
contents are thoroughly mixed with a chemically inert rod. The uncovered crucible is placed in a
muffle furnace or over a gas burner at 900°C to 1,150°C and swirled occasionally until the mixture
is completely molten and homogeneous. Samples containing high concentrations of alumina and
zirconia necessitate heating at 1,200°C.
A platinum alloy casting dish mounted on a ceramic support is heated at the same temperature as
the crucible for 2 minutes (5 to 10 minutes for aluminas and zirconias). After removal from the
furnace the molten mixture is poured from the crucible into the casting dish. Once the bead has
solidified, a jet of air is directed at the base of the casting dish to cool the bead.
Spectrofluxes have been used successfully with commercially available automatic fusion
equipment such as the Philips MagiX, Perl’X, PW 1400, LECO, Claisse fluxy, M4, Diano 8000 and
others.
50
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Techniques for Specific Materials
Where samples are particularly difficult to dissolve, oxidizing agents such as lithium or sodium
nitrate may be added to the flux to speed up the dissolution of the sample.
Samples that contain sulfides should be roasted in a ceramic crucible in air, before being mixed
with the flux, or fused with the flux in the presence of sodium or lithium nitrate. This ensures
conversion of sulfides to sulfates and their retention in the solid solution. Sulfur is lost from fusion
in graphite crucibles and when using ammonium nitrate as an oxidizing agent.
Samples containing large amounts of organic matter or carbon should be ignited in air at 500°C for
several hours prior to fusion.
Ferro-alloy samples must be fully oxidized prior to fusion with flux. Using lithium tetraborate, in-situ
with an oxidizing mixture, avoids pre-oxidation of samples, such as steel plant dust and refractories
containing metals. Samples that need to be fused at 1,200°C, e.g. aluminas, must be fused for the
same period of time due to the loss of flux that occurs by volatilization. It is also possible to
compensate for losses on fusion by adding an internal standard to the flux/sample mixture. Using a
flux containing a small quantity of the halo-acids, HBr and HI, or alkali metal can enhance the
non-wetting properties of 5% Au-Pt crucibles. Chrome-bearing materials containing up to 50%
Cr‚O3 may be dissolved in a mixture comprising 5Li‚B4O‡:5LiBO‚:0.4 sample
Analytical Instruments that use Spectroflux
Precision is a significant feature of X-ray spectrometry. However, the spectrometer can only yield
accurate analyses if systematic errors associated with the sample are eliminated. Errors due to
mineralogical, particle size and surface finish effects must be minimized. Refractory materials are
particularly heterogeneous and fusion with Spectroflux analytical fluxes provides the simplest
method of eliminating mineral identity and particle size interference, while reducing inter-element
effects.
Spectroflux
Analytical Fluxes
X-Ray Fluorescence Spectrometry (XRF)
The methods employed to compensate for inter-element effects are:
i) The use of mathematical corrections to compensate for enhancement and absorption
ii) Calibration over narrow concentration ranges using closely matched standards
iii) The use of multiple dilution with a flux
iv) Incorporation of a strong absorber, e.g. lanthanum oxide (La‚O3), into the solid solution at
concentrations such that variations in sample composition have little effect on the total absorption
of the matrix for the elements under analysis
Flux fusion techniques therefore have a major role to play in eliminating the various interference
effects.
Atomic Absorption Spectrophotometry (AA)
In the analysis of silicate rocks and minerals by AA spectrophotometry, borate flux fusion is an
excellent method of sample decomposition, since it is rapid and applicable over a wide range of
sample compositions. The method requires no chemical separations and enables a large number
of elements to be determined in a single-fluxed sample.
Inductively Coupled Plasma Spectrophotometry (ICP)
ICP is widely used in routine trace analyses in cements and refractories. Borate fluxes are used in
the normal way to provide a melt, which can be either directly dissolved into solution, or cooled and
then dissolved in the relevant acid.
.
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51
Spectroflux Selection
The Ideal Flux Will:
• Act as a solvent for a wide range of composition
• Possess a low melting point to minimize volatilization of flux and sample, facilitate handling,
minimize power costs and prolong crucible life
• Have a low molten viscosity to aid mixing during fusion, pouring from crucible and rapid
dissolution of sample
• Produce a transparent bead at minimum dilution with a wide range of samples free from
devitrification
• Be non-hygroscopic to aid weighing
• Have controlled, high density particle size to aid homogeneous mixing, rapid melting and
economic use of platinum labware
• Exhibit low loss of fusion, i.e. have low water content and be non-volatile to avoid excessive
correction and pre-firings
Spectroflux
Analytical Fluxes
Our Fluxes Are Categorized Within Three Ranges;
52
• “Classic” Spectroflux
• New “prefused” fluxes
• Specialized and custom fluxes
1-888-343-8025
“Classic” Spectroflux Products
Composition
w/w%
Mpt °C
Density
g/cm3
Typical
Applications
12078
100
Lithium tetraborate
100
920
>0.5
Cement, most ores,
carbonates,
aluminosilicates
41951
100
Lithium tetraborate
(low phosphorus)
100
920
>0.5
A general purpose
flux. Dissolves most
refractories. Not
suitable for acidic
samples. Low phosphorus (20ppm).
12079
100A
Lithium metaborate
100
845
>0.5
Sulfates, phosphates,
silicas, sands, clays
12080
100B
Lithium tetraborate
Lithium metaborate
20
80
830
>0.5
Aluminosilicate range,
aluminas, borax frits,
cements, iron, blast
slags
97890
100D
Lithium tetraborate
Lithium metaborate
35
65
825
>0.5
Aluminosilicate,
aluminas, bauxites,
iron ores
12087
110A
Lithium tetraborate
Lithium metaborate
50
50
870
>0.5
Silicates, calcareous
materials, chrome ores,
sands & shales
12086
110
Lithium tetraborate
Lithium metaborate
66.5
33.5
875
>0.5
Cement products,
aluminosilicates,
calcareous refractories
36222
120A
Lithium tetraborate
Lithium fluoride
90
10
780
>0.5
Petroleum
12321
106
Lithium tetraborate
Lanthanum oxide
85
15
900
>1.5
Steel, sinters, slags,
cements, phosphates,
carbonates
12320
107
Lithium tetraborate
Lanthanum oxide
81.8
18.2
900
>1.5
Cement
Spectroflux
Analytical Fluxes
Stock
No.
Name
• The ratios of the homogeneous blends can be adapted to your specific needs
• A low phosphorus version of SF100, below 20 ppm is available on request
Flux Selection is dependent on the acidity/basicity of both sample and
Spectroflux analytical flux. In decreasing order of basicity, the pure alkali
metal borate fluxes can be grouped as follows.
LiBO‚> Na‚B„O‡> Li‚B„O‡
Samples can be broadly grouped into three categories:
Acidic
SiO‚, P‚O…
Basic
M‚O, MO or M‚O3(M = Metal such as Na‚O, MgO or Al‚O3)
Amphoteric
Fe‚O3
Most flux fusion is carried out with lithium tetraborate, lithium metaborate or a blend of each.
The addition of lithium metaborate reduces the fusion point of the melt.
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53
Application Notes on “Classic” Spectroflux Products
SF100 (Li‚B„O‡)
Lithium tetraborate is an ‘acidic’ flux suited to dissolution of samples containing a high
concentration of non metallic basic oxides, carbonate rocks and aluminosilicates. High
silica bearing samples dissolve slowly (1h); in contrast with aluminas and
aluminosilicates (20 min) at 1,200°C. Beads produced from Li‚B„O‡, which are
significantly less hygroscopic than those prepared using Na‚B„O‡, do not
generate interfering X-ray emissions, and have a lower absorption for light
element radiations. By using Li‚B„O‡, sodium can be included in the
analytical program.
SF100A (LiBO‚)
Lithium metaborate is a basic flux. It rapidly dissolves a wide range of aluminosilicates,
in particular, the more acidic oxide compositions. However, materials containing in
excess of 85% AI‚O3 tend to promote devitrification of the bead, due to undissolved
particulates. LiBO‚ is generally used when an aqueous medium is required for
analysis, e.g. AA spectrometry.
Spectroflux
Analytical Fluxes
Due to its relatively low melting point, fusion can be effected over a gas burner and
the melt is free-flowing even at 1,000°C. LiBO‚ will not cast in the absence of a
sample to give a clear transparent bead. Beads are less likely to crack than those
prepared using Li‚B„O‡.
SF100B (Li‚B„O‡:4LiBO‚)
A eutectic composition specially formulated to dissolve aluminosilicates ranging from
100% SiO‚ to 100% Al‚O3. It combines the superior melt characteristics of LiBO‚
with the ability of Li‚B„O‡ to dissolve high alumina samples rapidly. Strongly basic
materials such as magnesite and calcite, when fused with 100B, will not produce
stable beads.
SF100D (Li‚B„O‡:2LiBO‚)
Formulated specifically for dissolving iron ores.
SF110 & 110A (Li‚B„O‡:LiBO‚ homogeneous blends)
Formulated for silicate and calcareous materials, these compositions are more acidic
than Spectroflux 100B and 100D
SF120A (9Li‚B„O‡:LiF)
The Lithium tetraborate has a reduced melting point due to the presence of alkali
metal fluoride. Fusions using LiF should be carried out in a well-ventilated fume
cupboard.
SF106 & SF107
Lithium tetraborate with Lanthanum oxide addition. Lanthanum oxide acts as a
heavy absorber maximizing the sensitivity of the spectrometer.
54
1-888-343-8025
New “Prefused” Spectroflux Products
Key Features of New Prefused Spectroflux Products
• Free flowing which facilitates use with automatic dispensing devices
• Prefused dust free granules
• Anhydrous, giving low loss on fusion
• High bulk density, typically 1.0g/cm3 or above
• Good homogeneity
• Controlled particle size
• High degree of purity
Composition
w/w%
Mpt °C
Density
g/cm
Typical
Applications
96569
1000
Lithium tetraborate
100
920
>1.0
Carbonates,
aluminosilicates
96706
1000A
Lithium metaborate
100
845
>1.0
Sulfates, phosphates,
silicas, sands, clays
96689
1000B
Lithium tetraborate
Lithium metaborate
20
80
840
>1.0
Aluminosilicate range,
aluminas, borax frits,
cements, iron, blast
slags
96713
1000D
Lithium tetraborate
Lithium metaborate
35
65
825
>1.0
Aluminosilicate,
aluminas, bauxites,
iron ores
96571
1010
Lithium tetraborate
Lithium metaborate
66.5
33.5
875
>1.0
Cement products,
aluminosilicates,
calcareous refractories
96572
1010A
Lithium tetraborate
Lithium metaborate
50
50
870
>1.0
Silicates, calcareous
materials, chrome ores,
sands & shales
96712
1020A
Lithium tetraborate
Lithium fluoride
90
10
780
>1.0
Petroleum
Spectroflux
Analytical Fluxes
Stock
No.
Name
Developments in our manufacturing capability have led to the introduction
of our new Spectroflux prefused flux range.
It has a higher tap density (>1.0 g/cm) than our traditional flux, reducing
the volume of flux in the platinum crucible.
A small amount (0.5%-0.2%) of a non wetting agent, Kl or Lil can be added
to allow for easy removal of the glass disk from the platinum mould.
1-888-343-8025
55
Specialized Spectroflux Products
Spectroflux
Analytical Fluxes
Stock
No.
Name
Composition
w/w%
Mpt °C
Density
g/cm
Typical
Applications
12082
104
Lithium tetraborate
Lithium carbonate
55.5
45.5
740
>0.7
Basic oxidizing flux for
sulfates, phosphates,
metals, lead &
titanium ores
12085
108
Lithium tetraborate
Lanthanum oxide
Sodium nitrate
76.2
14.3
9.5
790
>0.7
Strongly oxidizing
acidic flux for coal
ashes & furnace
deposits
96153
112
Lithium tetraborate
Lanthanum oxide
Lithium iodide
82
15
31
875
>1.3
Specialized applications
12088
118
Lithium tetraborate
Sodium nitrate
75
25
680
>0.7
Strongly oxidizing
acidic flux for ferroalloys, metals, coal
ashes & sulfides
12092
161
Lithium tetraborate
Lithium nitrate
90
10
870
>0.7
Basic oxidizing flux for
ferroalloys, iron ores
& slags
96714
310
Lithium tetraborate
Lithium metaborate
Lithium metaphosphate
17.5
17.5
65
630
>1.0
Specialized applications,
petroleum
97429
125
Lithium tetraborate
Lithium metaborate
Lanthanum oxide
Lithium fluoride
51
27
12
10
725
>0.7
Specialized applications
12093
200
Sodium tetraborate
100
740
>1.2
Iron ores, chrome
refractories, rare earth
minerals, tin &
titanium ores
We Custom Manufacture Fluxes To Meet Customers Needs.
We Have Over 100 Unlisted Special Fluxes.
SF104
Lithium carbonate dissolves acidic oxides easier then lithium tetraborate on its
own. It also produces bubbles in the melt for a better mix. It also initiates the
decomposition of nitrates.
SF 108,112
Based on an alkali metal borate, each of these fluxes contains lanthanum oxide
as a heavy absorber to minimize inter-element effects, thus allowing the analysis
of a wide range of materials on the same calibration curves. Sensitivity is slightly
reduced for light elements; overlap of NaK line with LaM line occurs and minor
interferences are experienced in determining Mg, Ti and Mn. Lanthanum Oxide
(La‚O3) increases the basicity of the flux and assists in the formation of a glass.
SF108, 118, 161
Based on an alkali metal borate, each of these fluxes contains nitrate or carbonate
additions to provide an oxidizing flux for use with samples containing reduced
species. Oxidizers such as nitrates of lithium and sodium can minimize the
corrosion of platinum crucibles.
SF 200
Na‚B„O‡ less acidic than lithium tetraborate.
56
1-888-343-8025
Alfa Aesar -Specialty Products
A Johnson Matthey Company, Inc.
General Terms and Conditions of Sale for Specialty products
By ordering any product or material, Buyer hereby agrees to the following terms and conditions of sale:
Acceptance
ALL ORDERS ARE ACCEPTED AND SHIPPED STRICTLY SUBJECT TO THESE GENERAL TERMS AND CONDITIONS AND NO OTHER TERMS AND CONDITIONS PRINTED ON BUYER'S PURCHASE ORDER OR OTHERWISE, SHALL BE APPLICABLE TO ANY ORDER.
Method of Shipment
Whenever possible, Seller will ship products by the method specified on Buyer's order. Seller works closely with
selected carriers and service is better achieved when using these carriers. Additional expenses and delays in shipment may be experienced when deviating from Seller's list of selected carriers. Seller will be happy to utilize other
carriers based on Buyer's requirements; however, Seller reserves the right to change the method of shipping for any
reason. In such cases, Seller will select the most appropriate and cost effective method. Certain poisonous, reactive,
corrosive or other chemicals may require a barrier bag, steel can, and/or other special packaging for shipment.
There will be additional charges for these packages. Seller's Customer Service Representatives will advise Buyer of
the charges at the time the order is placed. Seller strives to minimize these costs through efficient packaging.
Terms and Prices
All orders are shipped FOB seller's shipping point. Current standard published shipping charges will be added to the
invoice when Buyer order indicates the freight terms are prepay and add. A current copy of these standard published
shipping charges is available upon request. Buyer's order may be subject to handling charges. Buyer may request
shipment by freight collect, if desired. All prices are listed in US dollars. PRICES AND PRODUCT DESCRIPTIONS
ARE SUBJECT TO CHANGE WITHOUT NOTICE. In cases where the selling prices have changed significantly,
Seller will contact Buyer for approval prior to shipping your mailed, faxed, or electronically-transferred order. SELLER'S PAYMENT TERMS ARE NET 30 DAYS OF INVOICE, UNLESS OTHERWISE STATED.
Order Changes/Cancellations
No change or addition by Buyer of any term or condition of this contract or any of Seller's rights or remedies hereunder shall be binding on Seller, nor shall the order hereby acknowledged be changed or cancelled by Buyer unless
approved in writing by authorized officer of Johnson Matthey Catalog Company, Inc. There are no representations,
agreements, promises, or under-standings between Buyer and Seller that are not expressed herein.
Claims for Lost or Damaged Shipments
Seller urges Buyer to inspect all packages immediately upon receipt and report any damage, shortage or defect to
Seller's Customer Service Department as soon as possible. CLAIMS FOR ANY DISCREPANCIES MUST BE MADE
WITHIN 30 DAYS OF BUYER RECEIVING THE MATERIALS. All products are sold FOB seller's shipping point
unless otherwise noted. Delivery of goods to the carrier at Seller's location or to other loading point, shall constitute
delivery to Buyer, and regardless of shipping terms, all risks of loss or damage in transit shall be borne by Buyer. At
Buyer's expense, each precious metal shipment valued at over $1,000.00 is fully insured and shipped Federal
Express Priority I by Seller for Buyer's protection against loss or damage. Should Buyer need assistance in filing a
claim, please call Seller's Customer Service Department.
Return Shipments
Some materials are not returnable to Johnson Matthey Catalog Company, Inc., including, but not limited to, custom
or special order materials, leaking or damaged chemicals, reagents past expiration date, items with missing or obliterated labels, parts or instructions, refrigerated or frozen materials and opened materials. Returned shipments will
not be accepted by Seller unless prior arrangements have been made. If it is necessary to return any materials, contact Seller's Customer Service Department 888 343 8025 to obtain a return authorization number. REQUESTS FOR
RETURN AUTHORIZATION NUMBERS MUST BE MADE WITHIN 30 DAYS OF BUYER RECEIVING THE MATERIALS. Only items authorized by Seller for return will be accepted. Final disposition of returned goods will be made
only after receipt and inspection of goods. Collect shipments will not be accepted unless previously authorized.
Hazardous goods must be shipped in compliance with all applicable Department of Transportation regulations.
Material must be received on or before the Return Authorization expiration date. Material returned requiring disposal
may incur additional charges. Many of the products ordered through the specialty group may not be returned
although Alfa Aesar may offer to dispose of them. In most case a restocking or disposal fee will be applied.
Taxes
Buyer shall be responsible for any use, tax, sales tax, excise tax, duty, custom, inspection or testing fee, or any
other tax, fee or charge of any nature whatsoever imposed by any govern-mental authority, on or measure by the
transaction between Seller and Buyer, in addition to the prices quoted or invoiced, unless Buyer shall provide Seller
at the time the order is submitted an exemption certificate or other document acceptable to the taxing authority. In
the event Seller is required to pay any such tax, fee or charge, Buyer shall reimburse Seller therefore.
Uses and Patents
SELLER'S PRODUCTS ARE OFFERED FOR RESEARCH AND DEVELOPMENT USE ONLY. They are NOT intended for use as drugs, food additives, cosmetic, household chemicals, or other inappropriate applications. Seller does
not warrant that Buyer's use of a product sold will not infringe any United States or other patents. The listing of a
material in this catalog does not constitute a license to, or a recommendation for, its use in infringement of any
patent. Seller reserves the right, in its sole discretion, to limit sales of products or not to sell products to any customers.
1-888-343-8025
3
Limited Warranties
The information included in this catalog has been obtained from normally reliable and depend-able sources and is
correct to the best of Seller's knowledge; however, Seller does not make any guarantee of such information. Seller
warrants title as provided in the Uniform Commercial Code. SELLER MAKES NO OTHER REPRESENTATIONS
OR WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, OR ANY OTHER MATTER WITH RESPECT TO SELLER'S PRODUCTS, WHETHER USED
ALONE OR IN CONNECTION WITH ANY OTHER SUBSTANCE.
Limited Liability/Purchaser's Indemnity
Claims for rejected, nonconforming product, or any other claim against Seller, must be made in writing and must be
received and acknowledged by Seller in writing within thirty (30) days of Buyer's receipt of the product in question.
Any claims not satisfying this condition shall be deemed waived. Upon the approved return of any such product,
Seller shall have the option, at its sole discretion, to replace such product with conforming product or to return the
purchase price to Buyer. BUYER'S EXCLUSIVE REMEDY, FOR ANY CAUSE OR CLAIM WHATSOEVER,
INCLUDING BUT NOT LIMITED TO ALLEGED BREACH OF WARRANTY, PRODUCT LIABILITY, NEGLIGENCE,
OR OTHERWISE, SHALL BE FOR MONEY DAMAGES IN AN AMOUNT NOT TO EXCEED THE PURCHASE
PRICE PAID BY BUYER FOR THE PRODUCT IN RESPECT TO WHICH THE CLAIM IS MADE. IN NO EVENT
SHALL SELLER BE LIABLE FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER
BUYER'S CLAIM IS IN CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE EVEN IF SELLER HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Buyer represents and warrants that its use of products ordered will not violate any law or regulation. IN CONSIDERATION OF THE SALE OF PRODUCT TO BUYER, WHICH SALES SELL-ER WOULD NOT OTHERWISE
MAKE, BUYER AGREES TO INDEMNIFY AND HOLD SELL-ER HARMLESS FROM ALL CLAIMS, EXPENSES,
LOSSES AND LIABILITY OF ANY NATURE WHATSOEVER ARISING OUT OF BUYER'S HANDLING AND/OR
USE OF PRODUCT, WHETHER USED ALONE OR IN COMBINATION WITH ANY OTHER SUBSTANCE.
"Alfa Aesar" refers to and includes its operating units, subsidiaries and sub contractors for supply or manufacture.
Alfa Aesar does not warrant that it produces all of the products listed in any of its catalogs or brochures, many are
made in either Johnson Matthey plants or Alfa Aesar facilities but a significant number or products are produced in
other facilities on a non exclusive basis. Alfa Aesar does not warrant that these products listed are always made by
the same manufacturer.
Applicable Law
All orders shall be governed by the law of the Commonwealth of Massachusetts without regard to its choice of law
principles. Any litigation concerning an order shall be brought in the United States District Courts and/or State
courts located in the Commonwealth of Massachusetts and the parties hereby agree to submit to the jurisdiction of
these courts for such purposes. The parties further agree that the Convention on Contracts for the International
Sale of Goods shall have no application with respect to this order.
Material Safety Data Sheets
Each product is accompanied by a Material Safety Data Sheet in compliance with the OSHA Hazard
Communication Standard. If one is not immediately available, a copy will be sent via mail as soon as possible.
Seller strongly recommends that Buyer reviews all relevant information available to ensure safe use of products. If
an MSDS is needed prior to shipment of a product, or in case of an emergency, please contact Seller's Customer
Service Department. Seller furnishes the information on each Material Safety Data Sheet without warranty.
Technical Service
At Buyer's request, Seller may furnish technical assistance and information with respect to products sold. Unless
otherwise agreed, all such technical assistance and information will be provided without any representation or warranty and Buyer, as the user, assumes sole responsibility for results obtained in relying on this information. Seller
makes no warranties of any kind or nature with respect to technical assistance or information provided. Any suggestions by Seller regarding use, application, or suitability of the products shall not be construed as an express or
implied warranty. Seller strives to keep all technical discussions confidential, however, Seller makes NO guarantee
that such discussion or information will remain confidential.
Hazards, Buyer's Use
All of Seller's products should be handled only by qualified and trained individuals. In purchasing these products,
the Buyer acknowledges that there are hazards associated with their use. Buyer represents and warrants to Seller
that from Buyer's own independent review and study it is fully aware and knowledgeable about (a) the health and
safety hazards associated with the handling of the products purchased; (b) industrial hygiene controls necessary to
protect its workers from such health and safety hazards; (c) the need to adequately warn of health and safety hazards associated with products; and (d) government regulations regarding the use of and exposure to such products.
Toxic Substance Control Act (TSCA)
Seller does not warrant that its products are listed in the chemical substances inventory under the Toxic
Substances Control Act (TSCA). The Buyer represents and warrants that the use of products purchased from
Seller will be in full compliance with the act and its regulations.
Trademarks
Alf a®, Aesar®, Alfa Aesar®, ChemSeal® and Premion® are trademarks of Johnson Matthey Catalog Company,
Inc. FibreCat-, HiSpec-, Puratronic®, PureGuard-, REacton®, Smopex-, Specpure®, Spectroflux®, Vertec-, and
Waterflame Microwelder- are trademarks of Johnson Matthey, PLC.
4
1-888-343-8025
ON-LINE PLATINUM LABWARE SEARCH
AND QUOTE REQUEST AT WWW.ALFA.COM
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labware on-line at Alfa Aesar’s web site.
As you navigate through the simple menus, select a category, such as Crucibles,
Dishes or Utensils. From there, choose the proper item to meet your specifications
for capacity, weight, material, etc. Then simply send off a quote request from the
site. Our Product Specialists will return a quote to you within two business days.
Tel. 1-888-343-8025 or 1-978-521-6401
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LABWARE SEARCH AT
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precious metal labware

Transcription

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