Dissolution enthalpies of NaI in binary mixtures of water with aliphatic alcohols and methylcellosolve at 298.15 K. Enthalpic pair interaction coefficients of NaI–nonelectrolyte in water solution

Abstract

The enthalpy of solution, ΔHsol, of NaI in methanol + water, ethanol + water, n-propanol + water, isopropanol + water, and methoxyethanol + water at all compositions and ΔHsol of NaI in s-butanol + water and tert-butanol + water from 0 to 5 mol% alcohol was measured.The NaI–nonelectrolyte pair interaction enthalpies were determined and correlated with the functions describing some properties of the nonelectrolyte. A functional group additivity concept, introduced by Savage and Wood for non-ionic solutes, was applied to the interactions between NaI and nonelectrolytes.