Bright levelling zinc plating

Details Bright levelling zinc plating Bright levelling zinc plating

1976-03-22

1977-09-13

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 43Z, C25D 322

Patent

active

040480240

ABSTRACT:
Levelling agents for use in zinc electroplating solutions are described comprising thallous ions or a combination of peptone and thiourea. The thallous ions are preferably added to a concentration of at least 1 mg/l and the peptone-thiourea combination added to a concentration of at least 100 mg/l peptone and 50 mg/l thiourea.

REFERENCES:
patent: 2799635 (1957-07-01), Chester et al.
patent: 3833486 (1974-09-01), Nobel et al.
Herb Geduld, Metal Finishing, pp. 27-31, Mar. 1976.
W. George Parks et al., The Electrochemical Soc., Preprint 69-14, (1936).

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