Chloride ammino hydroxide

Ammino-salts of Cupric Halides.—When an aqueous solution of cupric chloride is treated with an aqueous solution of ammonia the hydroxide is precipitated, but if excess of ammonia be added the precipitate dissolves, forming a deep blue solution. The liquid contains the tetraminino-chloride and higher ammino compounds, depending on the concentration of the ammonia in solution and the temperature. 

Diammino-cadmium Chloride, [Cd(NH3)2]Cl2, has been obtained in several ways. If cadmium chloride be dissolved in hot aqueous ammonia and the liquid cooled, a crystalline substance separates which is a mixture of diammino-salt and cadmium hydroxide if, however, a clear aqueous solution of cadmium chloride be saturated with ammonia gas and allowed to evaporate spontaneously, the diammine is obtained free from hydroxide. The same ammino-salt is formed by adding a saturated solution of cadmium chloride to liquid ammonia and evaporating off the excess of ammonia by allowing the temperature to rise. The diammine is also formed by passing ammonia gas into an alcoholic solution of cadmium chloride.2... 

The first compound of the ammino-rhodium series examined was chloro-pentammino-rhodium chloride, [Rh(NH3)5Cl]Cl2, which vras prepared by treating rhodium trichloride with ammonia. Claus 1 investigated the composition of the substance and prepared from it, by means of moist silver oxide, a strongly basic substance, which proved to be the corresponding hydroxide, [Rh(NH3)5Cl](OH)2. 

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