Aqua Regia Refining InstructionsHaving described it's hazards, it must be pointed out that, like most industrial processes, refining gold in acid is quite safe when performed under controlled ...
Platinum- If you had platinum in your gold, it will not dissolve, to any appreciable degree, in the room temperature aqua regia. It will be left behind when you pour off the aqua regia, prior to precipitation. To insure high purity of the platinum, you will need to re-refine this material. Put ...
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get cash for platinum. Sell our silver, gols or platinum coins and damaged or old jewelries.
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