Electrolytic bath for the deposition of high gloss white gold co

Details Electrolytic bath for the deposition of high gloss white gold co Electrolytic bath for the deposition of high gloss white gold co

1981-04-01

1983-02-15

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 362

Patent

active

043740065

ABSTRACT:
Known white gold baths containing 2-10 g/l of gold as the sulfito complex, 2-40 g/l of alkali sulfite, 2-40 g/l of a complex former, 1-10 g/l of nickel and 1-20 g/l of cadmium, in each case in the form of a water soluble salt are sensitive to impurities of heavy metals and cyanide. This sensitivity is removed by adding 0.5-10 g/l of orotic acid and/or a derivative and/or salt thereof.

REFERENCES:
patent: 3475292 (1969-10-01), Shoushanian
patent: 3883409 (1975-05-01), Olivier
patent: 3981782 (1976-09-01), Bradford et al.
patent: 4012294 (1977-03-01), Losi et al.

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