Rhodium (III) Phosphate Solution

Rhodium (III) Phosphate Solution

CAS-number: 10489-46-0

Chemical formula: RhPO4

Application: a component of phosphoric acid electrolyte for rhodium plating; precursor of Rh2P.

Articles on the use of the compound:

1     2

IndicatorsValue
Rhodium concentration in solution, g/dm3 over 100
Mass fraction of each admixture in relation to rhodium, %, max.:  
gold, silver, platinum, palladium, ruthenium, aluminium, lead 0.005
chromium, copper, potassium, magnesium, nickel, selenium, tin, tellurium, titanium, zinc 0.025
iridium, iron, calcium, silicon, sodium 0.050
Mass fraction of chloride ions in solution, %, max. 0.01

As may be agreed by consumer and manufacturer, additional requirements to the quality of rhodium phosphate solution can be established.

IndicatorsValue
Mass fraction of rhodium, %, min. 20-40
Mass fraction of each admixture in relation to rhodium, %, max.:  
gold, silver, platinum, palladium, ruthenium, aluminium, lead 0.005
chromium, copper, potassium, magnesium, nickel, selenium, tin, tellurium, titanium, zinc 0.025
iridium, iron, calcium, silicon 0.050
sodium 0.100
chlorine 0.1

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