Thermodynamic Properties of Binary Mixtures Containing N,N-Dimethylacetamide + 2-Alkanol: Experimental Data and Modeling

Densities and viscosities of five binary systems containing N,N-dimethylacetamide + 2-alkanol (2-propanol up to 2-heptanol) were measured at T = (298.15, 303.15, 308.15, and 313.15) K and ambient pressure. From the density and viscosity data, the values of various properties such as excess molar volumes and viscosity deviations were calculated and fitted to the Redlich-Kister polynomial. The least-squares method was used to determine the adjustable parameters. Excess molar volumes are negative for N,N-dimethylacetamide + 2-propanol and positive for other systems. Viscosity deviations are negative for all binary mixtures. The statistical associating fluid theory (SAFT) and perturbed chain statistical associating fluid theory (PC-SAFT) were used to correlate the densities of the binary mixtures.