HEXAAMMINENICKEL(II) CHLORIDE

Chemical Properties

Decomposes in H2O, liberating NH3. Soluble in aqueous ammonia, not soluble in conc. ammonia or alcohol.

Preparation

A cone, solution of cobalt-free NiCl2·6H2O is treated with excess conc. NH3, then cooled in running water. The separation of fine crystals of [Ni(NH3)6]Cl2 is completed by addition of an ammoniacal NH4CI solution. The precipitate is filtered off and successively washed with conc. ammonia, alcohol and ether.