[Jewelry making - Article 00687] - Re: [Orchid] Can Nickel Plating be removed?

[Jeff Demand]

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    Nickel plating can be removed by reverse plating using a lead
    cathode and around a 50% sulphuric acid bath at room temperature and
    6 volts. ( from "Electroplater's Handbook" by C.W. Ammen ) None of
    the numbers are very critical. Any rhodium or gold plating over the
    nickel is also removed. It will attack silver but only very slowly,
    keep an eye on it. As I remember the current drops significantly when
    the nickel is gone. The silver will have a frosted white surface
    which responds well to tumbling with steel/stainless shot. 

Jeff


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