Abstract
The enthalpies of solution of sodium iodide in methanol, ethanol and acetone and in mixtures of methanol and ethanol with water were measured over wide ranges of electrolyte concentration and temperature. Standard enthalpies of solution, transfer enthalpies of NaI from alcohols to alcohol-water mixtures, and temperature coefficients of enthalpies of solution have been calculated. Thermodyanmic characteristics of solution and solvation of the Na+ and I− ions in acetone and ethanol were determined at 243–298 K. It is noted that at lower temperatures the disruption of solvent structure by ions is a local effect. The presence of negative solvation of the Na+ and I− ions in alcohol-water mixtures at lower temperatures is demonstrated.
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Krestov, G.A., Kolker, A.M. & Korolev, V.P. Peculiar properties of sodium lodide in alcohols, acetone, and alcohol-water mixtures at lower temperatures. J Solution Chem 11, 593–610 (1982). https://doi.org/10.1007/BF00650394
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DOI: https://doi.org/10.1007/BF00650394