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Ionic solvations in water + Co-solvent mixtures. Part 3.—Free energies of transfer of single ions from water into water + ethylene glycol mixtures

Cecil F. Wells 

Abstract

The free energies of transfer for MX (where M = H+, Li+, Na+, K+ and X = Cl–, Br–, I–, OH–) from water into mixtures of ethylene glycol(E) and water, calculated from the available data on electrode potentials, have been separated into free energies of transfer for the individual ions, ΔG°t(M+) and ΔG°t(X–), using values for ΔG°t(H+) calculated by the method involving the extrathermodynamic assumptions specified in Part 1. To calculate ΔG°t(H+), values for Kc=[EH+solv]/[H+aq][Esolv] have been determined using the spectrophotometric method with p-nitroaniline developed earlier. The values for ΔG°t(M+) and ΔG°t(X–) obtained are compared with those already determined for mixtures of water with alcohols and with acetone.

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Article type: Paper
DOI: 10.1039/F19757101868
Citation: J. Chem. Soc., Faraday Trans. 1, 1975,71, 1868-1875
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    Ionic solvations in water + Co-solvent mixtures. Part 3.—Free energies of transfer of single ions from water into water + ethylene glycol mixtures

    C. F. Wells, J. Chem. Soc., Faraday Trans. 1, 1975, 71, 1868
    DOI: 10.1039/F19757101868

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