Process for the galvanoplastic deposition of a gold alloy

Details Process for the galvanoplastic deposition of a gold alloy Process for the galvanoplastic deposition of a gold alloy

Filed on

1980-06-11

Date issued

1982-01-05

Examiner

Kaplan, G. L.

Patent Class

Chemistry: electrical and wave energy

SubClass

Processes and products

Other Related Categories

G01N 362

Type

Patent

Status

active

Patent number

043092560

Description

ABSTRACT:
A method comprising the galvano-plastic deposition of a gold alloy on a cathode in an aqueous bath containing gold in the form of alkali metal and gold cyanide in the presence of alkali metal and copper cyanide, alkali metal and cadmium cyanide, a chelating agent and an organic wetting agent, wherein the conductivity of the bath is adjusted by the addition thereto of an amount of an alkali metal sulfite sufficient to maintain a specific cathodic current density alloy deposition speed.

REFERENCES:
patent: 4179344 (1979-12-01), Thomson

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