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Abstract
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This research focuses on the results of the thermodynamic investigation of the aqueous ternary KSalicylate + Ethanol+ water system, from the sightly low up to moderate concentrations range, by exploiting the potentiometric method at 25 ºC. The deviation from ideality behavior for this system was investigated by determination of KSalicylate mean activity coefficients in the studied ternary (KSalicylate+ Ethanol+ H2O) electrolyte system using ion-selective electrodes (K+ ISE, Salicylate- ISE). The electrolyte system was modeled on the basis of the extended Debye-Huckel theory . Finally the Gibbs free energy of transfer of salts from pure solvent to solvent mixtures was investigated
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