Brightening additive for tungsten alloy electroplate

Details Brightening additive for tungsten alloy electroplate Brightening additive for tungsten alloy electroplate

C - Chemistry, Metallurgy

25

D

C25D 3/56 (2006.01)

Patent

CA 2166503

A brightening agent for use in tungsten alloy electroplating baths to replace hexavalent chromium plating or other hard lubrous coatings. Baths of the present invention comprise an effective amount of tungsten ions; an effective amount of a metal ion compatible with tungsten; one or more complexing agents; and an effective amount of a bath soluble alkoxylated hydroxy alkyne for providing brightening of a tungsten alloy electroplate.

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