双酚A型苯酰亚胺溶解度测定及关联

Determination and correlation of solubility of bisphenol A type phthalimide in several solvents

用平衡法测定了273.15~353.15 K下双酚A型苯酰亚胺在不同溶剂中的溶解度。结果表明,随着温度的升高,苯酰亚胺溶解度增大,通过改进的Apelblat方程,λh方程和Wilson活度系数方程关联该物质的溶解度数据,相关系数分别不低于0.9880,0.9771,0.9394,3种模型均能较好地拟合苯酰亚胺的溶解度数据,对比几种模型的拟合结果,改进的Apelblat方程拟合效果最好,其中ARD≤6.18%,RSMD≤2.39,且R^(2)≥0.9880,为结晶过程的设计提供热力学依据。

The solubility of bisphenol A type phthalimide in different solvents at 273.15~353.15 K was measured by equilibrium method.The results show that within a certain temperature range,the solubility increases with the increase of temperature.Through the improved Apelblat equation,λh equation and Wilson activity coefficient equation,the experimental data of the solubility was correlated.And the correlation coefficients were not less than 0.9880,0.9771,and 0.9394,respectively.The three models can correlate the solubility data of imide in solvent better.Compared with the correlation results of the model,the improved Apelblat equation has the best correlation effect(ARD≤6.18%,RSMD≤2.39,and R^(2)≥0.9880),providing thermodynamics basis for the design of crystallization process.