Abstract
The transference numbers of sodium chloride in aqueous solution at temperatures from 15° to 45° for concentrations up to 0.1N have been determined by the moving boundary method; both anion and cation boundaries were employed. The results for 25° are in close agreement with those of Longsworth. The Longsworth function t+°′ is linear in the concentration for the more dilute range at all temperatures, thus permitting a satisfactory extrapolation to infinite dilution, but shows definite deviations from linearity for the more concentrated. The transference numbers for sodium chloride and those previously obtained for potassium chloride, combined with the conductance data reported in the accompanying paper, yield values of the ionic mobilities for the whole temperature range.
Published Version
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