Solubility of Organic Compounds in Nonaqueous Systems: Poly cyclic Aromatic Hydrocarbons in Benzene

Dinesh S. Mishra, Samuel H. Yalkowsky

Research output: Contribution to journalArticle

18 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)2278-2283
Number of pages6
JournalIndustrial and Engineering Chemistry Research
Issue number11
StatePublished - Nov 1990


ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this