Zinc plating

Details Zinc plating Zinc plating

1981-11-23

1983-12-27

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

C25D 322

Patent

active

044229089

ABSTRACT:
A process of plating zinc is disclosed using a plating solution containing from 20 to 35 grams per liter of zinc ions; from 55 to 150 grams per liter of sulfamate ions; from 15 to 30 grams per liter of boric acid; from 15 to 45 grams per liter of sodium chloride or potassium chloride; from 0.6 to 3.0 grams per liter of an alkali metal benzoate, cinnamate, nicotinate, or 2-furylacrylate; from 0.5 to 1.1 grams per liter of a sulfonated fixed oil such as sulfonated caster oil, from 0.1 to 0.4 gram per liter of benzalacetone, furfuryl acetone, furfuryl crotonaldehyde or furfuryl acetonylacetone; and from 1.0 to 15 grams per liter of a polyether surfactant while maintaining the pH of the solution at from 4.0 to 5.5.

REFERENCES:
patent: 3778359 (1973-12-01), Popescu
patent: 3855085 (1974-12-01), Rushmere
patent: 4014761 (1977-03-01), Passal

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