Platinum P Salt - Johnson Matthey Chemical Products

Platinum P SaltTM
in ammonia
Product name
Diamminedinitroplatinum(II) in
suspension
Chemical formula
[Pt(NH3)2(NO2)2]
Product code*
UK - 155061
US - C1031T
* This product can be ordered worldwide under
the UK and US product codes.
CAS Number
14286-02-3
Product family
Pgm compound solution (aqueous)
Process
Electroplating
Market
Jewellery, Electronics
The system produces bright and adherent deposits of low
stress. Platinum P SaltTM is available in the form of an aqueous
slurry which is dissolved in a solution of diammonium and
disodium hydrogen phosphates to provide the plating bath.
Availability
Platinum P SaltTM Aqueous Slurry is available in packs of 50 g
platinum content and 100 g platinum content. Other pack sizes
can be supplied as required.
Bath preparation
The platinum P SaltTM aqueous slurry containing 50 g platinum
is added to a solution of 1200 g disodium hydrogen phosphate
dihydrate and 180 g diammonium hydrogen phosphate in 9 litres
of demineralised water.
Upon heating to 90°C, the solid dissolves and the volume of
solution is adjusted to 10 litres by the addition of demineralised
water.
The bath should be heated to the operating temperature of
91°C - 93°C with the pH in the working range of 6.5 - 7.5.
A pH adjustment can be made by the addition of sodium
hydroxide solution (10 % w/v) to increase the pH or phosphoric
acid to decrease the pH.
www.chemicals.matthey.com
Johnson Matthey, Orchard Road
Royston, SG8 5HE, UK
Tel. +44 1763 253000
© Johnson Matthey 2015
Replenishment
The regular addition of demineralised water is necessary in order
to maintain the volume of the bath. The platinum concentration of
the bath should be maintained between 4 g and 6 g per litre by
adding Platinum P SaltTM slurry as required.
Platinum P SaltTM
in ammonia
Product name
Diamminedinitroplatinum(II) in
suspension
Chemical formula
[Pt(NH3)2(NO2)2]
Product code*
UK - 155061
US - C1031T
* This product can be ordered worldwide under
the UK and US product codes.
CAS Number
14286-02-3
Product family
Pgm compound solution (aqueous)
Process
Electroplating
Market
Jewellery, Electronics
www.chemicals.matthey.com
Johnson Matthey, Orchard Road
Royston, SG8 5HE, UK
Tel. +44 1763 253000
© Johnson Matthey 2015
Metal preparation
Components should be degreased and cleaned by means of a
procedure appropriate to the substrate in question.
Handling & Storage
Please refer to the relevant Safety Data Sheet for further
information.
Plating conditions
Platinum content:
pH:
Temperature:
Cathode current density:
Cathode current efficiency:
4 g - 6 g/l
6.5 - 7.5 (use only an accurate
calibrated pH meter)
91°C - 93°C
0.1 - 0.3 A/dm2
(optimum 0.2 A/dm2)
approx. 15 % w/w