CRYSTALLINE AQUAAMINOCADMIUM MONODIPHOSPHATE AND THE PROCESS FOR PREPARATION THEREOF

摘要

The invention relates to novel chemical substances of coordination structure, namely to the compounds of cadmium with ammonia, water and monophosphate and diphosphate ions in solid crystalline state of general formula Cd(PO)·(PO)·2.0NH·8.4HO. A process for the preparation of crystalline aquaaminocadmium monodiphosphate consists in solving of mechanical mixture of Cd(PO)·5HO and CdPO·5HO, taken according to mole ratio of PO: PO= 2 : concentrated water solution of ammonia with a further desalting in acetone, separation of bottom phase by decantation and its drying at the temperature of 15-25 º to constant weight.