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... (sodium and potassium) which are used in refining precious metals. . ... % ammonium chloride /% borax /% sodium nitrate. Cover gold/flux mix with borax …

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Apr 11, 2010· Gold Refining from scrap ... (can also use ammonium nitrate fertilizer or potassium nitrate sold as ... add a little borax and torch to turn back to gold.

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Home » Crusher Plants>potassium nitrate gold refining ... (potassium-nitrate) is used ... add to the powder half a tea spoon of Borax and a pinch of nitrate ...

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Jun 08, 2013· Gold Refining Forum ... Borax is used a lot for silver and gold. ... like sodium nitrate or potassium nitrate to oxidize the base metals, ...

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Please advice how can I increase the gold purity during smelting from sulphide ore, fluxes used are Borax (dehydrated), Silica, Soda ash and Potassium Nitrate. It is ...

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Method to Convert Silver Sulphide Into Metalic Silver by aflacglobal ... MATERIALS Silver sulphide Potassium nitrate Borax Crucible ... Refining Karat Gold and ...

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