Abstract
Osmotic and activity coefficients were measured by the gravimetric isopiestic vapor pressure technique in the aqueous systems tetramethylammonium bromide-sodium bromide and tetra-n-propylammonium bromide-sodium bromide. The excess Gibbs free energy of mixing and Friedman's interaction coefficients were obtained and interpreted in terms of ion-ion interactions leading to self-salting-in in the case of the Pr4NBr-NaBr-H2O system and to salting-out in the case of the Me4NBr-NaBr-H2O system.
Original language | English |
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Pages (from-to) | 601-605 |
Number of pages | 5 |
Journal | Journal of Physical Chemistry |
Volume | 80 |
Issue number | 6 |
DOIs | |
State | Published - 1976 |
Externally published | Yes |