Open AccessStudies in Solubility Parameter Theory for Mixed Solvent Systems
Author(s) -
Avijit Purkayastha,
John Walkley
Publication year - 1972
Publication title -
canadian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.323
H-Index - 68
eISSN - 1480-3291
pISSN - 0008-4042
DOI - 10.1139/v72-130
Subject(s) - chemistry , solubility , cyclohexane , molality , solvent , solvation , saturation (graph theory) , benzene , hildebrand solubility parameter , iodine , iodide , inorganic chemistry , carbon tetrachloride , organic chemistry , thermodynamics , aqueous solution , physics , mathematics , combinatorics
Data are presented for the saturation solubility and partial molal volume of iodine in a mixed benzene–cyclohexane solvent and for the saturation solubility of stannic iodide in the same solvent mixture. A successful interpretation of these data in terms of solubility parameter theory is possible if we define an effective volume fraction term. This term reflects the immediate solvent environment of the solute molecule with the preferential solvation of the solute by one of the solvent molecules. Data for iodine in a mixed carbon tetrachloride–benzene solvent mixture and for iodine in a carbon tetrachloride–perfluoroheptane mixture are also interpreted in terms of the proposed theory.