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A Contribution to the Theory of Salting-out

B. E. Conway
J.E. Desnoyers
BE

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B. E. Conway

Résumé du colloque

Previous electrostatic theories of salting-out of non-electrolytes by small ions give values of relative salting-out which are much lower (sometimes by a factor of 5) than those found experimentally. The distribution theories have therefore been examined and the following new modifications made: (i) A full exponential distribution function is used and not an approximate linear one. (ii) Dielectric saturation near the ions is allowed for. (iii) The Debye-Huckel field rather than ze/r^2 (the simple ionic field) is used to calculate the polarisation energy of the solvent and non-electrolyte. Modifications (i) and (ii) lead to values of relative salting-out which are now within 20% of corresponding experimental values.

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Section :
Chimie physique
news icon Thème du colloque :
Chimie physique
manager icon Responsables :
M. Ouellette K.J. Faidler
host icon Hôte : Université de Montréal

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