Global thermodynamic analysis of conductivity data

Conductivity can serve as a tool to study ion properties in different solvents. In the current study, principles of the global modelling of the conductivity data measured at different concentrations and temperatures are demonstrated. Global model was developed on the basis of two modern conductivity theories; the low concentration chemical model and the Quint-Viallard model. It was tested on three different systems; NaCl in water, NaCl in water-1,4 dioxane mixture and MgSO4 in water. It turned out, that such approach successfully describes all the measured experimental data simultaneously. The applied global analysis of the experimental data allows determination of the thermodynamic profile of ion pairing process and the transport properties of ions at the same time.