Abstract
Precise conductance data for solutions of NaI, NaBPh4, KI, KSCN, Csl, Pr4NI, Pr4NBr, Pr4NClO4, i-Am3BuNI, and i-Am3BuNBPh4 in ethanol at −45, −35, −25, −15, −5, 5, 15, and 25°C are communicated and discussed. Measurements were carried out by procedures and equipment known to produce data of high precision. Evaluation of the data is performed on the basis of a conductance equation that includes terms in c3/2. Single ion conductances are determined with the help of temperature dependent transference numberts t0 + (KSCN/EtOH). Ion-pair association constants and their temperature dependence are discussed in terms of contact and solvent separated ion pairs and the role of non-Coulombic forces is demonstrated with the help of an appropriate splitting of the Gibb's energy of ion-pair formation.
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Barthel, J., Neueder, R., Feuerlein, F. et al. Conductance of electrolytes in ethanol solutions from −45 to 25°C. J Solution Chem 12, 449–471 (1983). https://doi.org/10.1007/BF00651698
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DOI: https://doi.org/10.1007/BF00651698