Application of classical thermodynamics to the conductivity in non-polar media

Abstract

Articles you may be interested inElectrical conductivity in non-polar media is a subject which recently regained interest. If most of experiments and theoretical developments were done more than 50 years ago, new experiments and theories have been recently published. As the electrical conductivity describes, at low field, the equilibrium state of a system, it is natural to apply theories based on equilibrium thermodynamics. In this article, well-established classical thermodynamics and solvations models are applied to recently published data. This enables to get a new insight in intriguing phenomena, such as the linear dependence of the conductivity on the concentration of ionic surfactant and the evaluation of conductivity for the mixture of two miscible fluids, such as alcohol and alcane, which have very different conductivities. Published by AIP Publishing. [http://dx

Application of Classical Thermodynamics to Conductivity in Nonpolar Media: Experimental Confirmation

“…In [12] a theory on the conductivity in non-polar medium was proposed. This theory predicted the dependence of the conductivity on the dielectric permittivity.…”

“…In some cases, the chemical potential of the ionogenic species is not a¤ected by the creation of ions or of ion-pairs. We have recently proposed a theory for the conductivity of these systems based on classical thermodynamics [12]. We refer to this article for further details about the derivations and discussions about the applicability of alternative theories.…”

Electrical Conductivity and Viscosity in Binary Organic Liquid Mixtures: Participation of Molecular Interactions and Nanodomains

“…In a subsequent investigation of toluene mixtures with several different alcohols, Dukhin and Parlia [33] suggested that electrical conductivity depends on the concentration of ion pairs, which varies with the dielectric constant of the mixtures. However, others have subsequently questioned these explanations, on the grounds that they do not adhere to classical thermodynamics [34,35]. In addition, Gourdin-Bertin and Chassagne [34] reasoned that autoprotolysis would not account for the observed electrical conductivity behavior because only very low concentrations of ionic species would be present.…”

“…However, others have subsequently questioned these explanations, on the grounds that they do not adhere to classical thermodynamics [34,35]. In addition, Gourdin-Bertin and Chassagne [34] reasoned that autoprotolysis would not account for the observed electrical conductivity behavior because only very low concentrations of ionic species would be present. Moreover, the role of composition-dependent ion pairing was also questioned [34].…”

“…In addition, Gourdin-Bertin and Chassagne [34] reasoned that autoprotolysis would not account for the observed electrical conductivity behavior because only very low concentrations of ionic species would be present. Moreover, the role of composition-dependent ion pairing was also questioned [34]. However, on the whole, even though the previous studies have presented accompanying theories that apparently give acceptable fits to the experimental data, the overall picture is confusing, with impurities also being implicated, including water [34][35][36], with the overall conclusion being that further work was required [34].…”