非电解质水溶液的粘度方程

在Eyring的液体粘性流动模型基础上,根据Rother等的假定和Shealy与Sand ler的水溶液过量自由焓溶质聚集模型,导出了一个双参数非电解质水溶液的粘度模型。利用该模型可由二元水溶液的2个模型参数预测多元水溶液的粘度。用该模型计算了6个体系391个不同温度和组成的二元水溶液和3个体系164个不同温度和组成的三元水溶液的粘度,计算值与实验值的总平均相对偏差分别为1.732%和2.977%,计算值与实验数据吻合很好。

Viscosity equation of aqueous nonelectrolyte solutions

On the basis of Eyring′s model of the viscous flow of liquid,a new two-parameter viscosity model for binary and polynary aqueous non-electrolyte solution was proposed according to Rother and others′ assumption and Shealy-Sandler′s model of the excess Gibbs free energy of aqueous solution.The viscosity of polynary aqueous solution can be predicted by model parameter of binary aqueous solution based on the model.The equation was used to calculate the viscosity for 6 systems of binary aqueous solution containing 391 data for different temperatures or constitutes and 3 systems of polynary aqueous solution containing 164 data for different temperatures or constitutes.The comparison with the literature data shows that the calculation results are satisfactory with the overall average relative deviations of 1.732% and 2.977% for the binary and polynary aqueous non-electrolyte solutions respectively,a good agreement is found between the calculated and experimental data.