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Ionic solvation—I. Free energies of transfer of copper(II) ion from water to alcohols and to their mixtures with water

✍ Scribed by Andrzej Lewandowski

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
306 KB
Volume
29
Category
Article
ISSN
0013-4686

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✦ Synopsis

The emJ of the cell: Cu/Cu'+ in water((Cu '* in water+alcoholICu for different alcohols (methanol. ethanol, I-propanol, Z-propanol, f-butanol, ethylene glycol, propylene glyco1 and glycerol) and their mixtures with water have been measured at 25°C. These data were used for calculation of Gibbs free energies of transfer of copper(H) ion from water to nonaqueous alcohols and to their mixtures with water, with the help of negligible liquid junction potential assumption. Determined free energies of transfer are

positive for all solvents studied, which may be simply interpreted assuming that copper(I1) ion interacts more strongly with water molecules than with alcohol moIecules. without reference to any special structural properties of these solvents.

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