Heterometal zinc-manganese(II)-cuprum(II) dihydrogenphosphates dihydrates contain crystalline structure cuprum(II) in addition to zinc and manganese(II), which quantitative ratio is changed within the range, wt. %: Zn 21.70-0.23 Mn 0.19-18.89 Cu 0.22-5.51 P 21.00-21.75 H2O the rest up to 100 %, are crystallized in monoclinic system, space group P1/n with two formula units, crystal latitude basis is formed of coordination polyhedrons Zn-O6, Mn-O6, being in a single crystallographic position, and curved crystallographically nonequivalent octahedron Cu-O6 is formed by evaporation of phosphate solutions prepared by interaction of 70-87 % phosphoric acid in amount of 160-180 % of stoichiometry with mechanical mixture of zinc, manganese(II) and cuprum(II) hydroxocarbonates with mole ratio K=(Zn, Mn/Cu of 95.0-3.0 at 50-70°C for 2-4 days, precipitate is washed with acetone, dried at room temperature till stationary mass.
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