Atomistry » Gold » Chemical Properties » Salts of Auricyanic Acid
Atomistry »
  Gold »
    Chemical Properties »
      Salts of Auricyanic Acid »

Salts of Auricyanic Acid

The free acid has not been prepared, as it decomposes as indicated under auric cyanide. Potassium auricyanide, 2KAu(CN)4,3H2O, is obtained in colourless crystals by the action of auric chloride on potassium cyanide in aqueous solution. It is readily soluble in water. At 200° C. all the water of crystallization is eliminated, the salt being converted into potassium aurocyanide, KAu(CN)2. Ammonium auricyanide, NH4Au(CN)4,H2O, is produced by evaporating a solution of auric hydroxide in ammonium cyanide. It forms large plates, readily soluble in water. At 100° C. the water of crystallization is expelled, and at higher temperatures the salt decomposes. The silver salt is produced as a yellowish precipitate, sensitive to light, by the action of silver nitrate on potassium auricyanide. It is readily soluble in ammonia, and much less readily in nitric acid. A cobaltous auricyanide, Co(Au(CN)4)2,9H2O, and a number of complex salts have been prepared.

Last articles

Zn in 8WB0
Zn in 8WAX
Zn in 8WAU
Zn in 8WAZ
Zn in 8WAY
Zn in 8WAV
Zn in 8WAW
Zn in 8WAT
Zn in 8W7M
Zn in 8WD3
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy