Electrolytic bath and process for the deposition of gold alloy c

Details Electrolytic bath and process for the deposition of gold alloy c Electrolytic bath and process for the deposition of gold alloy c

1981-04-02

1983-07-05

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 362

Patent

active

043916791

ABSTRACT:
In the electro industry, there are needed acid gold alloy baths which give glossy, ductile coatings, operate at high current densities, and contain little non-metallic impurities. This is attained by a bath based on potassium cyanoaurate (III) and an acid whereby the bath contains at least one of the alloying metals cobalt, nickel, indium, tin, zinc, or cadmium in the form of a water soluble salt, together with an amine, an aminocarboxylic acid, or a phosphonic acid and has a pH of below 3.

REFERENCES:
patent: 2978390 (1961-04-01), Atwater et al.
patent: 3598706 (1971-08-01), Freedman et al.
patent: 3883409 (1975-05-01), Olivier
patent: 3989800 (1976-11-01), Gansinger
patent: 4013523 (1977-03-01), Stevens et al.
patent: 4073700 (1978-02-01), Weisberg et al.
patent: 4168214 (1979-09-01), Fletcher et al.

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