Naslov
Conductometric Study of Potassium Bromide in 2-Butanol + Water Mixtures

Autori
Sokol, Vesna ; Tomaš, Renato ; Višić, Marija ; Tominić, Ivo

Izvornik
Journal of Solution Chemistry (0095-9782) 35 (2006); 1687-1698

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

Ključne riječi
Potassium bromide; 2-butanol + water mixtures; association to ion-pairs; activation of charge transport; thermodynamic quantities

Sažetak
Molar conductivities of dilute solutions of KBr in 2-butanol + water mixtures, with an alcohol mass fraction of 0.70, 0.80, 0.90 and 0.95, were determined at five temperatures from 15 to 35°C. Data were treated by the Lee-Wheaton conductivity model, and its parameters, the limiting molar conductivity (lambda_o) and the association constant (K_A), were evaluated. Thermodynamic quantities for the ion association reaction and for the process of charge transport were derived from the temperature dependence of the parameters and, together with the Walden product, interpreted in terms of ionic size, as well as solvent basicity, structure and permittivity.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA