Process for the electrolytic deposition of gold and gold alloy c

Details Process for the electrolytic deposition of gold and gold alloy c Process for the electrolytic deposition of gold and gold alloy c

1980-03-31

1981-06-23

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 366

Patent

active

042749271

ABSTRACT:
For the electrolytic deposition of gold alloys there is required a process with which low carat coatings can be deposited which nevertheless have a high resistance to tarnish. Such coatings are obtained from electrolytes which consist of a salt melt and contain gold salts, alkali thiocyanate and salts of one or more alloyings elements as constituents. Preferably the electrolyte contains per liter of salt melt 0.5 to 20 grams of gold, up to 300 grams of Cu, Zn, Sn, Cd, Ni, Ag, Pd, Ru and/or Pt, up to 200 grams of alkali cyanide and/or water.

REFERENCES:
patent: 4149942 (1979-04-01), von Stutterheim

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