Abstract:

In this paper, the rules of thermal decomposition reaction of metallic oxysalts were summarized. The reasons of the rules and the particularity of the thermal decomposition products of some salts were explained through the basic principles of chemical thermodynamics. It was found that the polarization force of metal ions, the polarization force of the central atom of the acidic group, the oxidation property of the acidic group and the number of gas molecules in the product all have effects on the thermal stability of the ionic polarization force.

Key words: Oxysalt, Thermal decomposition reaction, Principles of chemical thermodynamics, Ionic polarization force