Excess molar volumes and viscosity deviations in binary mixtures of N,N-dimethylacetamide with formamide and N,N-dimethylformamide at 298.15,308.15 and 318.15 K

摘要

Densities and viscosities of the binary mixtures of N,N-dimethylacetamide with formamide and N,N-dimethylformamide have been measured at 298.15 and 318.15K.The excess molar volumes (V~E) and the viscosity deviations (DELTAeta) of the mixture from the ideal mole fraction rule have been calcualted from these data.The values of both V~E and DELTAeta have been discussed in terms of intermolecualr interactions between the mixing components of the binary mixture.The computed results have been fitted to the Redlich-Kister polynomial relation to estimate the regression coefficients and standard errors for these systems.