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在Coats-Redfern积分式和Ozawa公式的基础上，采用双外推法对FeC_2O_4·2H_2O脱水过程的最可能机理进行了研究．结果表明其脱水过程分两步进行：第一步脱水过程为成核与生长过程，G（α）函数积分式为[-ln（1-α）]1／1.5；第二步脱水过程为二维扩散过程，G（α）式为（1-α）ln（1-α）＋α；同时求得相应的动力学参数．
On the basis of Coats-Redfern integral formula and Ozawa formula, the most possible mechanism of dehydration of FeC2O4.2H2O was studied by double extrapolation. The results show that the dehydration process is carried out in two steps: the first step is the process of nucleation and growth, the integral of G (α) function is [-1n (1-α)] 1 / 1.5; Dimensional diffusion process, G (α) is (1-α) ln (1-α) + α; At the same time, the corresponding kinetic parameters are obtained.