Thermodynamic properties of ternary non-electrolyte solutions. Part 3.—Excess molar volumes of 2-propanone–tribromomethane–alkane mixtures

Excess molar volumes are reported for ternary 2-propanone–tribromomethane–cyclohexane, 2-propanone–tribromomethane–n-heptane and 2-propanone–tribromomethane–n-decane mixtures at 308.15 K, as well as volumetric data for the seven sub-binary systems. Results of these measurements are used to test the applications and limitations of two previously derived associated solution models. For the most part, experimental and predicted values were in reasonably good agreement. Large deviations were noted for a few ternary compositions studied, however, suggesting that non-specific interactions are important in the binary 2-propanone–tribromomethane system and should be included in any subsequent re-evaluation of the equilibrium constant and standard reaction volume.

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