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Removing solder (tin and lead) from sterling silver
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Silver Refining Methods | eHow.com
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Gold Refining Forum – Gold-Refining.Org
Gold Refining, Silver, Platinum, Paladium, Rhodium, Ruthenium Precious Metals, Refining Recycling Recovery Discussion Forum
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Ancient Way of Refining Silver | eHow.com
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Refining (metallurgy) – Wikipedia, the free encyclopedia
In one of the melting stages, lead was added. Gold and silver preferentially dissolved in this, thus providing a means of recovering these precious metals.
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Gold Refining Forum Handbook Vol 2 ( 6-24-09 )
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The Pros and Cons of Gold Refining| Global Gold & Silver
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Melting Point – 1763.20 degrees F. (961.78 degrees C.)
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Silver Refiner, Silver refinery, Silver smelter and Silver buyer …
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