Process for producing by electrodeposition bright deposits of go

Details Process for producing by electrodeposition bright deposits of go Process for producing by electrodeposition bright deposits of go

1976-07-02

1978-02-14

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 46G, C25D 348, C25D 362

Patent

active

040737004

ABSTRACT:
This invention discloses a process for producing by electrodeposition bright deposits of gold and its alloys at greatly increased speeds and with an evenness of distribution significantly greater than conventional baths resulting in considerable savings in the average amount of gold deposited to meet a minimum thickness specification. The deposition of gold is promoted and enhanced by the presence of chelating agents characterized as carboxymethylated aminomethylene phosphonic acids and its salts.

REFERENCES:
patent: 2673214 (1954-03-01), Bersworth et al.
patent: 2961311 (1960-11-01), Bersworth et al.
patent: 3293176 (1966-12-01), White
patent: 3394172 (1968-07-01), Schiefer
patent: 3617343 (1971-11-01), Kandler et al.
patent: 3672969 (1972-06-01), Nobel et al.

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