Trivalent chromium electrolyte and process employing metal ion r

Details Trivalent chromium electrolyte and process employing metal ion r Trivalent chromium electrolyte and process employing metal ion r

1983-05-12

1984-10-16

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204DIG13, 423 53, 423607, C25D 306

Patent

active

044773188

ABSTRACT:
An aqueous acidic trivalent chromium electrolyte and process for electrodepositing chromium platings comprising an electrolyte containing trivalent chromium ions, a complexing agent, halide ions, ammonium ions and a reducing agent comprising a metal ion selected from the group consisting of Gold, Silver, Platinum, Palladium, Rhodium, Iridium, Osmium, Ruthenium, Rhenium, Gallium, Germanium, Indium, Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, and Praseodymium present in an amount effective to maintain the concentration of hexavalent chromium ions formed in the bath at a level at which satisfactory chromium electrodeposits are obtained.

REFERENCES:
patent: 4184929 (1980-01-01), Tomaszewski et al.

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