Chemical elements
    Physical Properties
    Chemical Properties
      Aurous fluoride
      Aurous chloride
      Aurous bromide
      Aurous iodide
      Aurous oxide
      Aurous sulphide
      Aurous thiosulphate
      Aurous Derivatives of Nitrogen
      Aurous cyanide
      Potassium aurothiocyanate
      Ammonia and Aurous Halides
      Gold dichloride
      Gold dibromide
      Gold monoxide
      Gold monosulphide
      Gold monosulphate
      Nitride of Bivalent Gold
      Auric chloride
      Aurichloric Acid
      Auric bromide
      Auribromic Acid
      Auric iodide
      Auri-iodic Acid
      Auric iodate
      Auric hydroxide
      Auric sulphide
      Auric sulphate
      Acid auryl sulphate
      Auric selenide
      Auric selenate
      Auric telluride
      Gold and Nitrogen
      Auric nitrates
      Gold and Phosphorus
      Gold arsenides
      Auric selenide
      Auric antimonide
      Auric cyanide
      Salts of Auricyanic Acid
      Double Salts of Auric thiocyanate
      Gold carbide
      Gold and Silicon
    PDB 1a52-4acl

Acid auryl sulphate, AuOHSO4

Acid auryl sulphate, AuOHSO4, is produced by the action of concentrated sulphuric acid on auric hydroxide at 180° C., the brown, basic salt formed being converted by heating at 200° C. into the yellow acid auryl sulphate. It is decomposed by water with formation of auric hydroxide, but dissolves in concentrated sulphuric acid to a yellowish-red solution, from which it separates unchanged. When this acid solution is heated with potassium hydrogen sulphate, a yellow, crystalline salt of the formula KAu(SO4)2 separates. It is more stable than acid auryl sulphate, but is slowly decomposed by water, with formation of auric hydroxide, potassium sulphate, and sulphuric acid. A silver salt of similar type has also been prepared.

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