[Jewelry making - Article 00175] - Re: pickle alternatives

[Dave Stephens]

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>    Indeed you are correct, in fact, I've considered boiling up some Coke and
>    trying it... :) Unfortunately, the phosphoric acid in Coke is too weak.
>    The thinking behind the phosphoric acid pickle is in regard to the now
>    common bright cast gold alloys. Apparently, sodium bisulphate pickles can
>    etch the silicon and enter into the grain of the metal weakening it, or so
>    I have been told. The phosphoric acid pickle also leaves silver purewhite,
>    that is, it removes the black and gray fire scale that Sparex frequently
>    seems to leave.

    So would it be beneficial to use with regular sterling? Are there any
    dangers (does it eat holes in clothes) and where do you get phosphoric
    acid?  Dave

Art Jewelry for Conscious People
http://www.opendoor.com/stephensdesign/crystalguy.html



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