Solvation of Fluoride Ions. II. Enthalpies and Entropies of Transfer From Water to Aqueous Methanol

Autor:	P. J. McLay, Glenn Hefter
Rok vydání:	1988
Předmět:	chemistry.chemical_compound Aqueous solution Chemistry Inorganic chemistry Ionic liquid Solvation Halide Physical chemistry General Chemistry Alkali metal Fluoride Potassium fluoride Ion
Zdroj:	Australian Journal of Chemistry. 41:1971
ISSN:	0004-9425
DOI:	10.1071/ch9881971
Popis:	Enthalpies of transfer of potassium fluoride from water to water-methanol mixtures over the whole composition range have been determined by calorimetry. Combination of these values with literature data has enabled calculation of the enthalpies and entropies of transfer for the individual ions through the tetraphenylarsonium tetrapbenylborate ( tatb ) assumption. The values of ΔtH°(F-) and ΔtS°(F-) show a complex dependence on solvent composition which closely parallels the dependence of the other halide ions. These effects are discussed in terms of ion-solvent and solvent-solvent interactions. The halide ions appear to be (weakly) preferentially solvated by H2O, and the alkali metal ions by MeOH.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1569af46a42521b5cb9cc8d5c8b88cc8 https://doi.org/10.1071/ch9881971 Zobrazit plný text záznamu