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U.S. Department of Energy
Office of Scientific and Technical Information

Electroplating a gold-platinum alloy and electrolyte therefor. [electrolyte-alkali metal hexahydroxyplatinate and alkali metal aurate]

Patent ·
OSTI ID:7277031

An electroplating bath for the deposition of gold-platinum alloys is described comprising an aqueous solution of alkali metal hexahydroxyplatinate and alkali metal aurate. Preferably, the solution comprises sufficient alkali metal hexahydroxyplatinate to provide from substantially 15 to substantially 25 grams of platinum per liter and sufficient alkali metal aurate to provide from substantially 0.5 to substantially 3.0 grams of gold per liter. The bath is operated at a temperature preferably in the range of from about 50 to 65/sup 0/C.

Assignee:
U.S. Energy Research and Development Administration
Patent Number(s):
US 3923612
OSTI ID:
7277031
Country of Publication:
United States
Language:
English