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How To Recover The GOLD From Used Filter Papers Pt2

sreetips 23:56

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How To Recover The GOLD From Used Filter Papers Pt1
https://youtu.be/uNQknkflACg

I do a second hot Aqua Regia boil to extract more of the gold from the solids. Once cooled, I filter out the solids from the gold-bearing solution, precipitate the pure gold with ferrous sulfate, then melt the resulting pure gold powder with an oxy/acetylene torch to produce a beautiful 24k pure gold button.

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