Chromium electroplating baths

Details Chromium electroplating baths Chromium electroplating baths

1976-08-25

1977-10-11

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 306

Patent

active

040533743

ABSTRACT:
In trivalent chromium electroplating baths of the type which comprise an aqueous solution of a complex of trivalent chromium with a carboxylic acid such as a glycolic acid and a halide such as a chloride, the invention provides an improvement by adding ammonia to the baths in a proportion of at least 0.05 moles per liter, thereby obtaining substantially improved covering power.

REFERENCES:
patent: 3006823 (1961-10-01), Deyrup
patent: 3706639 (1972-12-01), Bride et al.
patent: 3733346 (1973-05-01), Bride
patent: 3733347 (1973-05-01), Bride
patent: 3788957 (1974-01-01), Christie et al.
patent: 3833485 (1974-09-01), Crowther et al.
patent: 3954574 (1976-05-01), Gyllenspetz et al.

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