Abstract

The excess molar enthalpies of binary solvent mixtures of methanol, ethanol and 1-propanol with formamide, N-methylformamide and N, N-dimethylformamide were measured with a flow microcalorimeter at 313.15 K. The excess enthalpies are negative for the methanol-formamide system and positive for the other systems. The partial excess molar enthalpies have also been evaluated. The results are compared with those for mixtures of the same alcohols with N-methylacetamide and N, N-dimethylacetamide and they are discussed with regard to the associating abilities of the components.

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