Chloroauric acid
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Chloroauric acid is an inorganic compound with the chemical formula H. It forms hydrates H·nH2O. Both the trihydrate and tetrahydrate are known. Both are orange-yellow solids consisting of the planar
Chloroauric acid
Aqua regia
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Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar mixing ratio of 1:3. Aqua regia is a fuming liquid. Freshly prepared aqua regia is colorless, but it turns yellow, or
Chloroauric acid
…solids consisting of the planar [AuCl4]− anion. Often, chloroauric acid is handled as a solution, such as those obtained by dissolution of gold in aqua regia. These solutions can be converted to other gold complexes or reduced to metallic gold, or gold nanoparticles. Chloroauric acid is produced by dissolving…
Freshly prepared aqua regia to remove metal salt deposits
Freshly prepared aqua regia is colorless, but it turns orange within seconds. Here, fresh aqua regia has been added to these NMR tubes to remove all traces of organic material.
Pure gold precipitate produced by the aqua regia chemical refining process
Initial state of the transformation.