It is suggested that the free energies of formation of oxyacid salts minerals equal to the sum of free energies of formation of component oxides and the free energies of reaction between the A oxides:According to the linear relationship between the free energies of reaction of double oxides, a concept "Energy Parameter of Formation of Metal Ions" Wf is proposed to calculate free energies of reaction of various oxyacid salts :Gr0 = AWf + Bwhere A, B are constants depending on th e acidity of oxyacid. Using the method mentioned above free energies of formation of 66 oxyacid salts and 30 complex silicate minerals have been calculated and the results are good in agreement with the experimental values."Energy Parameter of Formation of Metal Ions" Wf can also be considered as a criterion to estimate thermal stability and thermal decomposition temperature Td of oxyacide salts.
. 1978, 含氧酸盐矿物生成自由能的计算. 地质科学, 13(4): 348-357.
. CALCULATION OF STANDARD FREE ENERGIES OF FORMATION OF OXYACID SALT MINERALS[J]. Chinese Journal of Geology, 1978, 13(4): 348-357.