Gold(I) chloride

Gold monochloride

Light yellow solid

Fixed

7.57 g · cm -3 ( 25 ° C)

289 ° C ( decomposition)

Risk

-34.7 KJ / mol

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Gold ( I) chloride is an inorganic chemical compound consisting of the group of the chlorides.

Production and representation

Gold ( I) chloride may be obtained by thermal degradation of a tetrachloroauric ( III) acid obtained gold (III ) chloride.

Also possible is the production by thermal decomposition of gold (III ) chloride.

Properties

Gold (I ) chloride is a pale yellow solid. It is soluble in alkali chloride solutions and decomposes when dissolved in water in gold and Trichlorhydroxogold ( III) acid.

In return, some gold (I ) chloride complexes are very stable.

The compound has an orthorhombic crystal structure with space group Cmmm (a = 6.41 Å, b = 3.36 Å, c = 9.48 Å ) ( another source space group I41amd ). Its enthalpy of formation is -34.7 kJ / mol.

Use

Gold ( I) chloride may be used as a catalyst for organic syntheses.