Theory of preferential solvation of nonelectrolytes
- 1 January 1988
- journal article
- Published by Springer Nature in Cell Biochemistry and Biophysics
- Vol. 12 (1) , 255-269
- https://doi.org/10.1007/bf02918361
Abstract
The concepts of local compositions around a solute and preferential solvation of a solute are defined in terms of the Kirkwood-Buff integrals. The difference between the local and the bulk composition is a measure of the preferential solvation of a solute with respect to the various components of the solvent. A statistical mechanical theory is developed that leads to simple relationships between local compositions and experimentally measurable quantities. Some preliminary results on preferential solvation of methane in mixtures of water-ethanol and water-p-dioxane are presented.Keywords
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