Abstract
The electrical conductivities of solutions of salts (KCl, NaCl, KBr, NaBr, NaI, KI, and LiBr) in glycerol have been measured at three concentrations (approximately 0.01, 0.1, and 0.3 M) at 25 °C and at other temperatures from (3.37 to 42.24) °C in the case of KCl and NaCl. Values of the molar conductivity at infinite dilution were obtained by extrapolation using the conductance equation of Onsager. Using previously measured transference numbers for KCl and NaCl in glycerol, values of limiting Walden products for the individual alkali-metal and halide ions in glycerol have been derived and compared with those in aqueous and other alcohol solutions. The values for glycerol were the largest so far measured. The limiting ion conductivities, λ∞, obtained from experimental data were compared with those calculated applying the Boyd−Zwanzig theory. A modified Walden rule, Λ∞ηp = constant, is suggested as applicable in glycerol, the exponent p being less than unity and having a value down to 0.9. Finally, the temp...
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