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MSA-NRTL model for the description of the thermodynamic properties of electrolyte solutions

Papaiconomou, Nicolas ; Simonin, Jean-Pierre ; Bernard, Olivier ; Kunz, Werner


The mean spherical approxn. (MSA) approach for electrolyte solns. is combined with a modified non-random two-liq. (NRTL) approach. The resulting model is suitable for a description of the thermodn. properties of electrolyte-multisolvent systems. The ability of this MSA-NRTL model is investigated by examg. activity and osmotic coeffs. of binary and ternary electrolyte solns. Esp. for non-aq. solns., the model is superior to std. semi-empirical calcns. used in the chem. industry.

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