Electroplating chromium and its alloys

Details Electroplating chromium and its alloys Electroplating chromium and its alloys

1978-06-08

1979-07-17

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 43R, 423366, C25D 306

Patent

active

041614321

ABSTRACT:
A chromium or chromium alloy plating system and material are disclosed. The chromium is supplied by an aqueous equilibrated solution of a chromium (III) thiocyanate complex. A buffer material which also supplies one of the ligands to the chromium complex is provided. The buffer material is selected from amino acids, peptides, formates, acetates and hypophosphites.

REFERENCES:
patent: 2088615 (1937-08-01), Schlotter
patent: 2822326 (1958-02-01), Safranek
patent: 4062737 (1977-12-01), Barclay et al.
D. J. Barclay et al., Inorganic Chemistry, vol. 9, No. 5, pp. 1024-1030, May 1970.
D. J. Levy et al., J. Electrochem. Soc., vol. 118, No. 10, pp. 1563-1570, Oct. 1971.
Paul Morisset et al., "Chromium Plating", p. 471 (1954).
D. J. Levy et al., Plating, pp. 1125-1131, Nov. 1970.

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