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Immersion zinc plating

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From Wikipedia, the free encyclopedia

Immersion zinc plating is an electroless (non-electrolytic) coating process that deposits a thin layer of zinc on a less electronegative metal, by immersion in a solution containing a zinc or zincate ions, Zn(OH)2−
4. A typical use is plating aluminum with zinc prior to electrolytic or electroless nickel plating.

Immersion zinc plating involves the displacement of zinc from zincate by the underlying metal:[1]

3 Zn(OH)2−
4 + 2 Al → 3 Zn + 2 Al(OH)−
4+ 4 OH−

See also

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References

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  1. ↑ Glenn O. Mallory, Juan B. Hajdu (1990), Electroless Plating: Fundamentals and Applications, American Electroplaters and Surface Finishers Society, William Andrew Inc., ISBN 0-936569-07-7
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