Study of ion-solvent interactions in formamide + water mixtures by the measurement of viscosity of sodium chloride solutions
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 72, 654-660
- https://doi.org/10.1039/f19767200654
Abstract
The relative viscosity of NaCl solutions has been measured as a function of temperature and solvent composition in the formamide + water system. The resulting Jones–Dole B-coefficients are examined by considering each solvent mixture as an “averaged pure solvent” and applying transition state theory. B-coefficients and related parameters were found to be monotonic functions of solvent composition. Changes in viscosity are interpreted in terms of a reduction of structure breaking by the chloride ion and an increase in long-range ordering of solvent molecules by the ionic electric fields, as the solvent composition moves towards a higher proportion of formamide.Keywords
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