Solubility of organic compounds in nonaqueous systems; Polycyclic aromatic hydrocarbons in benzene

Journal Article · Thu Nov 01 00:00:00 EST 1990 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00107a013· OSTI ID:5757221

Mishra, D S; Yalkowsky, S H ^[1]

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1. Dept. of Pharmaceutical Sciences, College of Pharmacy, Univ. of Arizona, Tuscon, AZ (US)

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, {Delta}C{sub p} {approx} 0 is a better approximation than {Delta}C{sub p} {approx} {Delta}S{sub 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.

• OSTI ID: 5757221
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Vol. 29:11; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
02 PETROLEUM
BENZENE
SOLVENT PROPERTIES
POLYCYCLIC AROMATIC HYDROCARBONS
SOLUBILITY
CALCULATION METHODS
AROMATICS
HYDROCARBONS
ORGANIC COMPOUNDS
400201* - Chemical & Physicochemical Properties
023000 - Petroleum- Properties & Composition