| 摘要 |
Heterometal zinc-cobalt (II) diphosphates pentahydrates simultaneously contain zinc, cobalt (II), phosphorus. Heterometal zinc-cobalt (II) diphosphates pentahydrates are polycrystals of orthorhombic syngony, contain five molecules of crystalline hydrate water, three of which enters the coordination environment Zn-Oand Co-Oof octahedrons, three of which are connected with cation through phosphate tetrahedrons, homogeneity areas make up 0<y≤0.69, the content of all components, weight %: ZnO – 40.44-21.38; CoO – 1.14-13.45; PO– 36.00-36.95; HO – 22.42-23.42 are obtained by total deposition of cations with ion diphosphate in the course of interaction of mixture of 0.1-0.4 mole/l of aqueous solutions of zinc and cobalt (II) sulphates with solution of potassium diphosphate, taken in mole ratio of K=Zn/Co=0.67÷16.00, n=PO/&Sgr;Zn, Co=0.1-0.3, the sludge is aged under mother solution for 13 days, regularly mixing, filtered out, washed and dried. |
