Galvanic bath for the electrodeposition of bright zinc-cobalt al

Details Galvanic bath for the electrodeposition of bright zinc-cobalt al Galvanic bath for the electrodeposition of bright zinc-cobalt al

1986-03-06

1987-02-17

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

C25D 356

Patent

active

046438050

ABSTRACT:
A method and bath therefor for electroplating improved zinc base-cobalt containing alloys. The bath contains a brightening agent dispersed therein of a class of compounds having the formula: ##STR1## wherein R.sub.1 represents an aromatic nucleus such as phenyl, pyridyl, naphthyl, thienyl or furyl which may have one or several substituents selected from hydroxy, chloro, amino, amido or methylenedioxy and R.sub.2 is alkyl, hydroxyalkyl or pyridyl. The baths also contains conventional additives such as wetting agents and aromatic monocarboxylic acids or salts thereof. The baths generally have a pH range of 3.0 to 6.8.

REFERENCES:
patent: 4252619 (1981-02-01), DaFonte et al.
patent: 4401526 (1983-08-01), Martin
patent: 4439283 (1984-03-01), Verbene et al.
patent: 4543166 (1985-09-01), Lash

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