THE USE OF GLASS SODIUM ELECTRODES FOR THERMODYNAMIC STUDIES OF SODIUM-IODIDE SOLUTIONS IN METHANOL PLUS N-PROPANOL, METHANOL PLUS ISOPROPANOL AND N-PROPANOL PLUS N-BUTANOL MIXTURES AT 298.15-K

The electromotive forces of the cells glass electrode(Na)\NaI\AgI, Ag in methanol + n-propanol (MeOH + n-PrOH), methanol + iso-propanol (MeO H + i-PrOH) and n-propanol + n-butanol (n-PrOH + n-BuOH) were measured at 298.15 K. The values of standard emf of the cells and the Gibbs en ergies of transfer of NaI DELTAG(t)0 were determined taking into consi deration ion-pair formation. The enthalpies of transfer of the electro lyte were calculated using the standard enthalpies of solution of NaI obtained earlier. The values of the entropies of transfer were also ob tained. The usefulness of glass sodium electrodes for thermodynamic st udies of electrolyte solutions in a system containing two-component or ganic mixtures was evaluated and discussed.