Aqueous zinc solution resistant to precipitation

Details Aqueous zinc solution resistant to precipitation Aqueous zinc solution resistant to precipitation

1995-02-02

1996-02-06

Silverberg, Sam

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Depositing predominantly alloy coating

205155, 205244, 205245, 205309, C25D 548

Patent

active

054893739

ABSTRACT:
There is disclosed an aqueous chemical solution that consists essentially of zinc ions, a source of hydroxides, and silicon ions. The ratio of silicon to zinc (Si:Zn) is, by weight from about 1:5 to about 1:250. Within the ratio range, the silicon ions inhibit precipitation of zinc from the chemical solution. This is particularly useful when the chemical solution is an electrolyte for the deposition of zinc or a zinc containing compound onto a metallic structure where a critical zinc content must be maintained to impart adequate adhesion of a coated substrate to a polymer adhesive.

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