Solute-solvent interactions in water-tert-butyl alcohol mixtures. VI. Enthalpies of solution for halo-para-substituted benzoates |
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| Authors: | N Dollet J Juillard |
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| Institution: | (1) Laboratoire d'Etude des Interactions Solutés-Solvants, Groupe de Chimie-Physique, Université de Clermont, les Cézeaux, B.P. 45, 63170 Aubière, France |
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| Abstract: | Enthalpies of solution of sodium benzoate, potassium benzoate, and potassium halo-substituted benzoates are reported at 298.15°K
in water and in nine water-tert-butyl alchol mixtures. Transfer enthalpies from water to the mixed solvent go through a maximum for about 0.055 mole fraction
of alcohol. Additivity of ionic contributions in the enthalpies of transfer is verified. Substituent effects on the transfer
enthalpies of benzoates are discussed in terms of size of the solutes and cohesion of the solvent mixtures.
For Part V, see ref. 1. |
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| Keywords: | Substituent effects enthalpy of transfer solution calorimetry tert-butyl alcohol-water mixtures benzoate ions |
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