[Jewelry making - Article 00769] - Re: [Orchid] Sparex Pickle Granules

[John Donivan]

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    Back in the old days, Sparex came in a plain old everyday steel can.
    As it sat on the shelf, it would turn brownish. Now, they line the
    can with a coating, and it still turns brown, but not as fast. We
    always thought of it as iron from the can and hard water, but I don't
    know that for a fact. What I do know is that the more brown it is,
    the more sludge there is. I don't know if putting it in a plastic
    bottle right away might fix it. We have gone to Otto Frei's version,
    which does come in plastic, and we get no sludge. BTW - we also tried
    citric acid. It was 100% effective for the pickle's #1 job, removing
    flux. But it was 100% ineffective at it's #2 job, the first step in
    cleaning grungy jewelry, like repair work, so we went back to Sparex. 


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