Naslov
PHYSICOCHEMICAL PROPERTIES OF SELECTED IMIDAZOLIUM CHLORIDE IONIC LIQUIDS IN TETRAETHYLENE GLYCOL

Autori
Kinart, Zdzislaw ; Tomaš, Renato

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Czech Chemical Society ; Symposium Series / - Olomouc, 2022, 241-241

Skup
74th Congress of the Czech and Slovak Chemical Societies

Mjesto i datum
Olomouc, Češka Republika, 04.09.2022. - 07.09.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ion association ; tetraethylene glycol ; imidazolium-based ionic liquids

Sažetak
The obtained results of conductivity were analyzed with the use of new modified conductivity models in order to determine the value of the ion association constant and the limiting molar conductivity. The results were analyzed in a wide range of temperatures. Based on the dependence of limiting molar conductivity as a function of temperature, the values of the diffusion coefficient and the thermodynamic function of the Eyring activation enthalpy of charge transfer were determined Using the following dependencies: DGo(T) = - R T lnKA(T) DSo(T) = - B - 2CT DHo = DGo + TDSo and the values of the association constants which were determined from conductivity measurements at different temperatures the values of thermodynamic parameters such as Gibbs free energy, entropy and enthalpy of ion pair formation were estimated. The obtained conductometric results made it possible to compare the changes in the limiting molar conductivity in different glycols as a function of temperature changes. These data also allowed for the comparison of the influence of the properties and structure of various glycols on the values of the discussed thermodynamic functions.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA