Volumetric properties of aqueous solutions of alcohols and diols at 25 °C

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Abstract
Partial molar volumes at infinite dilution, text-decoration:overlineV 0 x, and pairwise contributions to the volume, vxx, are computed from density measurements of aqueous solutions of some polyhydroxylated compounds. A modified group-additivity approach is proposed to evaluate with precision the text-decoration:overlineV 0 x values of positional isomeric compounds, when the text-decoration:overlineV 0 x values of the first members of a few homologous series are known. The vxx values are correlated to the corresponding text-decoration:overlineV 0 x values, confirming a previous hypothesis (C. Cascella, G. Castronuovo, V. Elia, R. Sartorio and S. Wurzburger, J. Chem. Soc., Faraday Trans., 1990, 86, 85) of a preferential ‘side-on’ orientation in non-bonding interactions for this type of compound.

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