Can U Refine Gold Ore With Aqua Regia

2019127use sodium metabisulfite precipitate gold out of a aqua regia solutionou will get gold sludge powder looks like mudodium metabisulfite also known as sodium bisulfite is an affordable and effective selective precipitant for goldhis chemical can recover up to 99 of pure gold when the precipitated gold is thoroughly rinsed.

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