Trivalent chromium plating baths

Chemistry: electrical and wave energy – Processes and products

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C25D 306

Patent

active

041579453

ABSTRACT:
An electrolyte bath and a method for using such a bath comprising trivalent chromium ions dissolved in an aqueous solution containing sulphide. The bath may also contain a weak complexing agent such as hypophosphite or glycine. The electrolyte according to the invention permits the electrodeposition of chormium from electrolytes having low solids content without adversely affecting plating rates.

REFERENCES:
patent: 2088615 (1937-08-01), Schlotter
patent: 3954573 (1976-05-01), Dahlgren et al.
patent: 4053374 (1977-10-01), Crowther
patent: 4062737 (1977-12-01), Barclay et al.

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