Rhodium compounds

    Rhodium-ER

    Rhodium plating electrolytes are manufactured and supplied by EZOCM JSC as a solution, which is liquid from yellow to orange-red, based on rhodium sulfate, bleaching and brightening additives.

    The rhodium plating electrolyte is used for electroplating of jewelry.

    EZOCM JSC produces two types of rhodium plating electrolytes:

    • Standard rhodium plating electrolyte Rhodium-ER is used as a stock standard solution for rhodium electroplating of jewelry.
    • Correction rhodium plating electrolyte Rhodium-EC is used to correct the rhodium content in the standard electrolyte for rhodium plating.

    The chemical composition of rhodium plating electrolytes shall meet the requirements specified in Table 1.

    Table 1. The chemical composition of rhodium plating electrolytes

    Parameter

    Value, %

    for Rhodium-ER

    for Rhodium-EC

    1 Mass fraction of rhodium1,9–2,15,4–5,6

    2 Mass fraction of each impurity in relation to rhodium, not more than:

    copper0,0050,005
    nickel, lead, zinc0,0060,006
    iron, arsenic0,0250,025
    magnesium, calcium0,050,05
    silicon0,20,2

    3 Mass fraction of chloride ion in relation to rhodium, not more than:

    		0,20,2

    Note - additional requirements for the quality of rhodium plating electrolytes can be established upon agreement between the consumer and the manufacturer.

    Rhodium plating electrolytes Rhodium-ER and Rhodium-EC are packaged in bottles, jars, canisters made of polymeric material.

    The storage life of rhodium plating electrolytes is 2 year.

    Make a request