Solute-solvent interactions were studied by volumetric analysis for a series of salts and osmolytes. Densities of anion and cation salts from the Hofmeister series and seven osmolytes at varied concentrations were measured to determine the apparent molar volume of the solute, partial molar volume of solvent and solute, and volume of mixing in aqueous solutions. Strongly hydrated salts showed smaller limiting partial molar volume compared to weakly hydrated salts. Volume of mixing values were more negative for strongly hydrated anions and cations suggesting that the interactions of these salts with water were more favorable. The interactions between osmolytes and water were also investigated in a similar fashion as the slats. Detailed volumetric analysis of solute-water system will be presented.

Partial molar volumes and volume of mixing of salts and osmolytes

2019 Spring National Meeting

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