Rhodium(III) Sulfate, Bright Plating "Rhodium DR"
CAS number: 10489-46-0
Chemical formula: Rh2(SO4)3
Metal content: 4.0—6.0%
Application: a component of sulphuric acid electrolyte for rhodium plating.
Articles on the use of the compound:
|Indicators||Trial Data Results|
|Mass fraction of rhodium: %, (g/L)||4-6 (40-60)|
|Mass fraction of admixtures in relation to mass fraction of Rh, %, each max.:|
|calcium, magnesium, silicon||0.04|
|Iron, copper, zinc, cadmium, tin, lead, stibium, chromium, arsenic||0.005|
|Mass fraction of (Cl- + Br- + I-) in solution calculated by chloride ion, %, max.||0.01|
|Mass fraction of free H2SO4, mole/kg of solution, max.||0.5|
As may be agreed by consumer and manufacturer, other requirements to the quality of rhodium plating electrolytes can be established.