[Jewelry making - Article 00642] - Re: [Orchid] Removing drill bit from Argentium

[Helen Hill]

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Hi Merylyn,

    I looked in the archives for alum in relation to broken drill bits
    and found: 

>     Try a Drug Store for Alum. Yes it will work on broken drill bits
>     in Silver. The Alum needs to be heated in a Glass beaker with the
>     piece of jewelry placed in it. 

    If you can't get hold of any alum from the drug store, some people
    use similar chemicals (often called alum but strictly not alum by
    definition but still contain the sulphates required) as their pickle
    solution, such as sodium bisulphate (often sold as pH down). 

Helen
UK
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