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What is Aqua Regia Gold Refining Process about?

Aqua regia is a mixture of nitric acid and hydrochloric acid that dissolves gold and other precious metals. The gold-bearing scrap is dissolved in aqua regia, producing metal chlorides in solution. The excess aqua regia must then be eliminated to allow precipitation of the gold. Various chemicals are added to precipitate the gold out of solution in solid form. The precipitated gold is then washed, dried, and melted into the final product. Proper ventilation is needed when working with aqua regia due to the

Author

Cassidy

Language

EN