Use of barium chromate as a sulfate scavenger in chromium electr

Details Use of barium chromate as a sulfate scavenger in chromium electr Use of barium chromate as a sulfate scavenger in chromium electr

1991-06-13

1993-05-04

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Depositing predominantly single metal coating

205243, 204DIG13, C25D 304, C25D 306, C25D 2118

Patent

active

052078906

ABSTRACT:
A sulfate scavenger for chromium-plating baths consists of barium chromate or dichromate or mixtures of the two, added either directly to the bath or as part of a replenishment mixture with chromic acid.

REFERENCES:
patent: 2042611 (1936-06-01), Lukens
patent: 4461680 (1984-07-01), Lashmore
patent: 4470879 (1984-09-01), Iezzi et al.

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