Enthalpic pair interaction coefficients in DMF solution .3. Thermochemistry of NaI solutions in mixtures of N,N-dimethylformamide with urea, formamide, acetamide and N,N-dimethylacetamide at 298.15 K

Dissolution enthalpies of NaI in mixtures of N,N-dimethylformamide with urea, formamide, acetamide and N,N-dimethylacetamide were measured. The results were compared with data measured earlier for other DMF - non-electrolyte mixtures. The enthalpic pair interaction coefficients, h(xy) (Na+I- - non-electrolyte) in DMF were calculated and analysed together with the appropriate data concerning other Na+I- - non-electrolyte pairs in DME The group interaction coefficients illustrating the interactions of Na+I- with the CH2, OH, O, CO, 'Pep' and 'iPep' groups were determined and discussed.