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Aqua regia is an extremely corrosive mixture of nitric and hydrochloric acid used as an etchant for some analytical chemistry procedures and to refine gold
DetailsOne pound packs of Urea used when refining using the aqua regia method Typically with nitric acid based aqua regia there are free nitrogen ions in solution This can cause some gold to redissolve after it has adding Urea before the gold is precipitated the Urea can help neutralize the free nitrogen ions and prevent the gold
Aqua regia or aqua regis in the gold refining If you dissolve gold in aqua regia and want to recover it you will find that you must remove the nitric
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Aqua regia the free encyclopedia Pure gold precipitate produced by the aqua regia chemical refining process when platinum group metals are purified through dissolution in aqua regia gold
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