采用平衡法分别测定了间苯二甲腈在甲醇、甲苯、二甲苯和苯胺四种溶剂中的溶解度,温度范围为293.15～318.15 K,并分别采用λ-h方程、Apelblat模型和Yaws模型对实验数据进行了关联.根据实验数据可以看出间苯二甲腈的溶解度在4种溶剂中均随着温度的升高而升高,并且间苯二甲腈在不同溶剂中的溶解度差别较大.通过4个体系的24个数据点的实验值与计算值相比较,三种模型的总的平均相对误差分别为5.92%、3.90%、3.86%.结果表明λ-h方程、Apelblat模型和Yaws模型都可以较好地关联间苯二甲腈在四种溶剂中的溶解度数据.%The solubility data of isophthalonitrile (IPN) in methanol, toluene, dimethylbenzene and aniline at 293.15～381.15 K were determined by equilibrium method. The experimental data were correlated with λ-h equation, Apelblat equation and Yaws equation, respectively. According to the experimental data, the solubilities of IPN in above mentioned 4 solvent systems increase with increasing temperature, and they are of great difference in different solvents. Comparing 24 data of IPN solubility in above 4 solvent systems, the average absolute deviations between the experimental values of IPN solubility and those calculated by above three equations are 5.92％, 3.90％ and 3.86％, respectively. The results show that all the λ-h equation, Apelblat equation and Yaws equation could well correlate the solubility data of IPN in those 4 mentioned solvents.
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