[Jewelry making - Article 01787] - Re: [Orchid] Refining silver myths?

[James Binnion]

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>     If you overheat it then it will start to oxidise and eventually you
>     will get a thick layer of molten silver oxide on the surface. 

    Sorry, silver oxide does not form this way. And it decomposes back
    to metallic silver and oxygen at 200C. Molten silver can hold 20
    times its volume in oxygen but it does not form an oxide compound. As
    the silver cools it releases the oxygen back to the atmosphere. 

James Binnion
jbin AT mokume-gane.com
James Binnion Metal Arts
http://www.mokume-gane.com
360-756-6550
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