Affiliation:
1. 1Institute of Physical Chemistry, University of Bari, Italy
Abstract
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 distancesof 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 at25 °C and 1.19 at 35 °C) in the whole solvent composition range.
Subject
Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics
Cited by
12 articles.
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