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

Dinesh S. Mishra; Samuel H. Yalkowsky

doi:10.1021/ie00107a013

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

Dinesh S. Mishra, Samuel H. Yalkowsky

Pharmacology and Toxicology

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Abstract

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, ΔC_p? 0 is a better approximation than ΔC_p? ΔS_f. 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 language	English (US)
Pages (from-to)	2278-2283
Number of pages	6
Journal	Industrial and Engineering Chemistry Research
Volume	29
Issue number	11
DOIs	https://doi.org/10.1021/ie00107a013
State	Published - Nov 1990

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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title = "Solubility of Organic Compounds in Nonaqueous Systems: Poly cyclic Aromatic Hydrocarbons in Benzene",

abstract = "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.",

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AB - 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.

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

Abstract

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