High quality, bright nickel plating

Details High quality, bright nickel plating High quality, bright nickel plating

1987-08-19

1988-08-16

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

C25D 314

Patent

active

047642629

ABSTRACT:
An improved process and composition for the preparation of nickel or nickel alloy electrodeposits is provided. The process involves passing current from a anode to a cathode through an aqueous acidic electroplating solution containing zinc ions as impurities with the combination of at least one nickel compound, saccharin, and a sulfonated acetylenic compound or salt thereof, particularly propyne sulfonic acid.
The invention is particularly useful for electroplating nickel onto a zinc die cast substrate, where zinc ion impurity build-up in the bath occurs.

REFERENCES:
patent: 2800440 (1957-07-01), Brown
patent: 2852449 (1958-09-01), Becking et al.
patent: 2882208 (1959-04-01), Becking et al.
patent: 3075898 (1963-01-01), Brown
patent: 3506548 (1970-04-01), Duchene
patent: 4062738 (1977-12-01), Rushmere

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