Acid zinc electroplating bath and process

Chemistry: electrical and wave energy – Processes and products

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C25D 322

Patent

active

040702561

ABSTRACT:
An aqueous, ammonium ion-free acid zinc electroplating solution comprising a source of zinc ion, a soluble electrolyte, boric acid, a non-ionic polyoxyalkylated surfactant, and an organic acid, the bath being operable at a pH of about 3.0 to about 6.5. Preferably, the bath also contains a brightener. Spent baths are simply and inexpensively disposed of.

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patent: 3730855 (1973-05-01), Poor et al.
patent: 3787297 (1974-01-01), Beckwith et al.
patent: 3891520 (1975-06-01), Todt et al.
patent: 3909373 (1975-09-01), Creutz
patent: 3919056 (1975-11-01), Habulak
patent: 3920528 (1975-11-01), Voss et al.
patent: 3928149 (1975-12-01), Steeg

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