[Jewelry making - Article 00371] - Re: [Orchid] Sodium bisulfate

[LenandJudy]

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    Steve, though I don't understand the exact nature of your problem
    with the firescale on your gold, let me suggest that you could try
    the following. 

    Make up a solution of the sodium bisulfate, add some hydrogen
    peroxide (H202 -- should be available in a drug store [or at the
    chemist's, if you're a Brit]), heat GENTLY, add the gold piece.  You
    may eventually begin to see tiny bubbles rising from the piece,
    showing that the firescale is being chemically removed.  If not, add
    a little more of the sodium bisulfate and/or hydrogen peroxide. 

    This is a slower process than trying dilute (50:50) nitric acid, my
    personal favorite for firescale.  But the ingredients are a lot
    easier to come by.  HTH (Hope This Helps). 

Judy Bjorkman
Lenandjudy AT acmgfcu.net

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