Naslov
Conductometric Study of Potassium Chloride in Ethanol - Water Mixtures

Autori
Bošković, Perica ; Sokol, Vesna ; Tomaš, Renato ; Prkić, Ante

Izvornik
International Journal of Electrochemical Science (1452-3981) 8 (2013), 9; 10961-10975

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
ethanol - water mixtures; potassium chloride; limiting ionic conductivity; association to ion-pairs; thermodynamic quantities

Sažetak
The molar conductivities of dilute solutions of potassium chloride in binary mixtures of ethanol and water were measured in the temperature range from 288.15 to 308.15 K at 5 K intervals. The experimental data were treated by the Lee-Wheaton conductivity equation and parameters lambda_o and K_A derived. The ionic limiting molar conductivities (lambda_o) were obtained using the literature values of the cation limiting transference number to(K+) from the same temperature range. The ionic Walden product , thermodynamic quantities for the ion-association reaction (delta G_o, delta H_o and delta S_o) and the activation enthalpy of the ionic movement were calculated and discussed in terms of the ionic size, as well as solvent viscosity, permittivity, structure and basicity.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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