A SOLID HYDRATED TRIPLE AMMONIUM PYROPHOSPHATE OF COPPER (II)- ZINC-NICKEL (II)

A solid hydrated triple ammonium pyrophosphate of copper (II)- zinc-nickel (II) simultaneously contains macro- and microelements for plants feeding. As cation it contains simultaneously copper (II), zinc and nickel ions (II), and for the preparation of the product of individual composition with a general formula of CuxZnyNi2-(x+y)P2O7 . nNH3.mH2O, wherein x = 1,2; y = 0.3-0.5; n = 3; m = 2-4 as original mixture it is used the mechanical mixture of crystalline Cu2P2O7.5H2O, Zn2P2O7.5H2O and Ni2P2O7.6H2O, taken at a molar relation of Cu : (Ni + Zn) = 1.2:0.8 so that the amount of molar particles of Cu, Zn and Ni is equal to 2.0. The mixture is dissolved in 23-25 % aqueous ammonium taken on the basis of 120 % from stoichiometrically necessary amount for formation of complex tetra amines ions of metals. Further, the obtained solution is poured in the acetone which volume is related to the volume of ammonium solution of pyrophosphates of copper, zinc and nickel as being equal to 3:1. The bottom phase is separated of mother liquor and kept at 15 25 DEGREE C till hardening thereof, simultaneously drying the residue at air to the constant bulk.