Methods and electrolyte compositions for electrodepositing chrom

Details Methods and electrolyte compositions for electrodepositing chrom Methods and electrolyte compositions for electrodepositing chrom

1993-08-18

1995-05-16

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Depositing predominantly single metal coating

205290, C25D 310

Patent

active

054157633

ABSTRACT:
Methods for electrodepositing a chromium coating on a substrate comprising mmersing the substrate in an aqueous electrolyte, and passing a sufficient current through the electrolyte to effect deposition of a chromium coating on the substrate. The aqueous electrolytes comprise from about 0.2 to about 0.6 mol/l of trivalent chromium ions, greater than about 1.4 mol/l of an amidosulfonic acid or a salt thereof, ammonium ions, formic acid or a salt thereof, and water.

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