SOLUBILITY OF ORGANIC-COMPOUNDS IN NONAQUEOUS SYSTEMS - POLYCYCLIC AROMATIC-HYDROCARBONS IN BENZENE

被引:16
作者
MISHRA, DS [1 ]
YALKOWSKY, SH [1 ]
机构
[1] UNIV ARIZONA,COLL PHARM,DEPT PHARMACEUT SCI,TUCSON,AZ 85721
关键词
D O I
10.1021/ie00107a013
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The present paper deals with the evaluation of some widely used models used to calculate activity coefficients and the assumptions for the ideal solubility for some polycyclic aromatic hydrocarbons in benzene. The results show that, for ideal solubility, ΔCp? 0 is a better approximation than ΔCp? ΔSf. The values obtained for the entropic activity coefficients are similar from both UNIFAC and Flory-Huggins theories. The residual activity coefficients calculated from Scatchard-Hildebrand theory and UNIFAC are, however, very different. The combination of Flory-Huggins and Scatchard-Hildebrand theories gives better predictions for the solubility of polycyclic aromatic hydrocarbons in benzene than does UNIFAC theory. © 1990, American Chemical Society. All rights reserved.
引用
收藏
页码:2278 / 2283
页数:6
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