Thermodinamical Analyse the Formation of Phosphates Copper, Zinc and Cobalt on the Base Double Superphosphate and Sulphates of Copper, Zinc and Cobalt
Z. Turaev
Namangan Civil Engineering Institute, 160103, Republic of Uzbekistan, Namangan, st. I. Karimov, 12, Uzbekistan.
I. T. Shamshidinov
Namangan Civil Engineering Institute, 160103, Republic of Uzbekistan, Namangan, st. I. Karimov, 12, Uzbekistan.
I. I. Usmanov
The Research and Production Company, Ilm-fan Texnologiyalar, Tashkent, Uzbekistan.
O. M. Isakova
Namangan Civil Engineering Institute, 160103, Republic of Uzbekistan, Namangan, st. I. Karimov, 12, Uzbekistan.
B. E. Sultonov *
Tashkent Pharmaceutical Institute, Tashkent, Uzbekistan.
*Author to whom correspondence should be addressed.
Abstract
In this article the relationship between the entropies of crystalline calcium compounds and copper, zinc and cobalt compounds were analyzed. Thermal capacity dependence of temperature for acidic phosphates of copper, zinc and cobalt, determining value of enthalpy and entropy of copper, zinc and cobalt phosphates have been determined and the possibility to conduct thermodynamic analysis of reactions for their formation were established. Accordingly the data of thermodynamic analysis of temperature conditions for obtaining double superphosphate, the most formation of monosubstituted phosphates of copper, zinc and cobalt, and possibility of formation disubstituted of copper phosphates.
Keywords: Double superphosphate, thermodynamics, microelements, phosphates, enthalpy, entropy, thermal capacity, mineral fertilizers, microfertilizers, phosphates of copper, zinc, cobalt.