Hard chromium plating from hexavalent plating bath

Details Hard chromium plating from hexavalent plating bath Hard chromium plating from hexavalent plating bath

1981-07-13

1983-09-27

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 310

Patent

active

044067569

ABSTRACT:
The efficiency of hard chromium plating from a standard aqueous acidic bath containing hexavalent chromium ions and sulfate ions is increased by the addition of lower alkyl amino acids, di(lower alkyl)formamides, di(lower alkyl)sulfoxides and bisulfate salts.

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"From a Murky Chromium Plating Bath, Some Bright New Answers" General Motors Research Laboratories, J. Electrochem. Soc. Feb., 1979, p. 160, 190-198.
"Additives in Hard Chromium Plating Baths" Doskor, J. et al., Metal Finishing, Mar. 1967, pp. 71 to 79.

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