What industry uses aqua regis?

sequoianoir

Aqua regia (Latin for "royal water") is a highly-corrosive, fuming yellow liquid, formed by a mixture of concentrated nitric acid and concentrated hydrochloric acid, usually in the ratio of one to three. It is one of the few reagents able to dissolve gold and platinum. It was so-named because it can dissolve the so-called royal, or noble metals. Aqua regia is used in the refining of gold, etching and in certain analytic procedures. Apr 04 04, 10:11 AM

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