Zhylyak I. Cobalt (II), Nickel (II), Copper (II), Zinc and Cadmium (II) Aquaamminediphosphates

Тhe preparation and study of properties of the individual and mixed-metallic double and triple Copper (II), Nickel (II), Cobalt (II), Zinc and Cadmium (II) Aquaamminediphosphates. Compounds with composition 2Cо2P2O7·(6?7)NH3·(8?11)H2O; Ni2P2O7·3NH3·(4?6)H2O; Cu2P2O7·3NH3·(2?3)H2O; 2Zn2P2O7·6NH3·(3?4)H2O, Cd2P2O7·3NH3·4,5H2O and mixed-metallic Cobalt-Nickel, Cobalt-Copper, Nickel-Copper, Nickel-Zinc, Nickel-Cadmium, Copper-Zinc, Copper-Cadmium, Nickel-Copper-Zinc, Nickel-Copper-Zinc, Nickel-Zinc-Cadmium were isolated. The composition was studied by the methods of chemical, X-ray analyses and IR spectroscopy. The order of thermal transformations was established using method of thermal analysis. The general schemes of thermolysis are compiled. Structure and crystalline characteristics of dehydrated diphosphates prepared in the first time were determined by the Ritveld method