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Issue 4, 1983
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Free energies of transfer of ions from water to butan-1-ol

Abstract

The solubilities of 30 1:1 electrolytes in butan-1-ol are reported. Combination of these data and ion-pair association for the electrolytes in butan-1-ol yield solubility (ion-activity) products from which free energies of solution of the ionic species M++ X have been calculated. Using the corresponding data in water, the free energies of transfer of M++ X from water to butan-1-ol are obtained.

Single-ion free energy of transfer values for 12 cations and 5 anions were calculated by using Parker's convention. These results are compared with those obtained previously for transfer to methanol, ethanol and propan-1-ol.

For the single ions, an increase in the free energy of transfer is observed along the series of alcohols. The hydrophobic ions, however, do not show a regular pattern with regard to their free energy of transfer.

Single-ion partition coefficients from pure water to the pure solvent have been calculated, and the implications of these data on the extraction of M++ X from water to butan-1-ol are discussed.

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Article information


J. Chem. Soc., Faraday Trans. 1, 1983,79, 1001-1007
Article type
Paper

Free energies of transfer of ions from water to butan-1-ol

A. F. D. de Namor, E. Contreras and E. Sigstad, J. Chem. Soc., Faraday Trans. 1, 1983, 79, 1001
DOI: 10.1039/F19837901001

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