[Jewelry making - Article 01013] - Re: [Orchid] Easiest way to clean sterling earrings

[Marla Rudnick]

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>     The silver sulphide tarnish is chemically converted back to
>     elemental silver and the sulphide ions combine with hydrogen ions
>     in solution to produce hydrogen sulphide, which is what you can
>     smell.

    Thanks Helen! I was looking for a way to explain that to my
    students. 

    They all are amazed with the technique and ask if it removes any
    silver as it works. I've told them that the smell is like a
    photographic dark room. 

Marla Rudnick
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