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用TG/DTA,DSC和XRD技术研究了固态物质ZnAc2.2H2O在空气中的热分解过程.结果表明,ZnAc2.2H2O在空气中发生两步分解,其失重率与理论计算失重率相符.XRD结果表明,ZnAc2.2H2O分解的最终产物为ZnO.用Friedm an法和F lynn-W all-Ozawa(FWO)法求得分解过程的活化能E,并通过多元线性回归方法给出了可能的机理函数.ZnAc2.2H2O在空气中两步分解的活化能分别为119.82和66.82 kJ/mol.
The thermal decomposition process of solid ZnAc2.2H2O in air was investigated by TG / DTA, DSC and XRD. The results showed that ZnAc2.2H2O decomposed in air two times, and its weight loss rate was consistent with the theoretical calculation of weight loss rate.XRD results The results show that the final product of decomposition of ZnAc2.2H2O is ZnO. The activation energy E of the decomposition process is calculated by the Friedmann method and Fynyn-W all-Ozawa (FWO) method and the possible mechanism functions are given by the multiple linear regression method The activation energies of ZnAc2.2H2O in air are 119.82 and 66.82 kJ / mol, respectively.