Thermodynamic Regularities in Solvation of Anorganic Electroluties in the Individual Solvent

Abstract

The paper considers a large amount of data obtained by the authors of this work and of literature data on the inorganic electrolytes dissolution enthalpy in water and in 11 non-aqueous solvents. Methanol, ethanol, formamide, methylformamide and ethylformamide were selected as proton solvents, and demethylformamide, acetonitrile, hexamethylphosphorotriamide, sulfolane, propylene glycol carbonate, and demethyl sulfoxide were selected as the aprotic solvents. Alteration in the solvation enthalpy difference in two cations or two anions during transition from proton to the aprotic solvents was analyzed based on conceptions about possible types of different particles interaction with each other. It was established that the differences ratio in the solvation enthalpies of ions with different solvents was almost constant, which makes it possible, without conducting an experiment, to determine unknown values of the solvation enthalpies with a minimum error. Additional information about regularities in enthalpies of the electrolytes solvation with individual solvents could be obtained by analyzing materials on the enthalpies of electrolytes solvation with the mixed solvents, for example, the two-component or more. This contributes to development of theoretical concepts in thermodynamics of the electrolyte solvation

Please cite this article in English as:

Solovev S.N., Gurov A.A., Shatalov K.I. Thermodynamic regularities in solvation of anorganic electroluties in the individual solvents. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2023, no. 6 (111), pp. 97--110 (in Russ.). DOI: https://doi.org/10.18698/1812-3368-2023-6-97-110

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