The Conductance of the Alkali Halides I. Sodium Chloride in Sulfolane-water Mixtures, at 25 °C and 35 °C
Open Access
- 1 April 1971
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 26 (4) , 755-759
- https://doi.org/10.1515/zna-1971-0420
Abstract
The electrochemical behaviour of sodium chloride in water-sulfolane mixtures, at 25 °C and 35 °C, was investigated, the concentration of the salt ranging within (1÷7)·10-3 moles/liter and the dielectric constant (D) of the solvent mixtures within 78 and 44. Analyzing the data by the Fuoss, Onsager and Skinner treatment, Λ0, aL, A , aA and Λ0 η values were obtained. At both temperatures, Λ0 is a smooth function of the solvent compositions; a remarkable association seems evident at D < 60 ; log A vs. 1/D plots are linear; the contact distances of the ions are lower than in other isodielectric media. Except for a limited region close to pure water, the Walden product Λ0 η is constant (1.20 at 25 °C and 1.19 at 35 °C) in the whole solvent composition range.Keywords
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