Calculation of osmotic coefficients of nonaqueous electrolyte solutions with the help of chemical models

Abstract

The superimposition of Coulombian long range ion-ion and non-Coulombian short range interactions yields mean force potentials which are used to calc. the osmotic coeffs. of various org. solvent systems via pair correlation functions. The agreement with osmotic coeffs. calcd. from vapor pressure data for 22 MeOH, EtOH, iso-PrOH, or MeCN solns. of alkali metal and tetraalkylammonium salts shows the reliability of the chem. model of electrolyte solns. from infinite diln. to high concns.