Thermodynamic functions for the transfer of naphthalene from water to mixed aqueous solvents at 298.15 k

Abstract

Values of free energies Δ G t XXX, enthalpies Δ H t XXX, and entropies Δ S t XXX, of transfer of naphthalene from water to urea-water, acetonitrile-water, dimethylformamide-water and dimethylsulphoxide-water mixtures at 298.15 K in the water-rich region have been determined from solubility measurements at different temperatures. The cavity term from scaled particle theory has been used to explain qualitatively the experimental transfer free energies. We have also calculated molecular-pair interaction parameters in water for the four systems studied.