Method and composition for electroplating chromium and its alloy

Details Method and composition for electroplating chromium and its alloy Method and composition for electroplating chromium and its alloy

1977-09-15

1979-02-27

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

423366, C25D 306

Patent

active

041418034

ABSTRACT:
A plating solution, the making thereof and the use for chromium plating is disclosed. The solution is an equilibrated essentially aqueous solution of a hexavalent thiocyanatochromium III complex wherein the ratio of the total chromium III to the total thiocyanate is about 1:6. A preferred and improved method of making the solution from a hexathiocyanatochromium salt is also disclosed.

REFERENCES:
patent: 2822326 (1958-02-01), Safranek
patent: 4054494 (1977-10-01), Gyllenspetz et al.
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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