Excess Molar Volumes and Viscosities for Binary Mixtures of 2-Propoxyethanol and of 2-Isopropoxyethanol with 2-Pyrrolidinone, <i>N</i>-Methyl-2-pyrrolidinone, <i>N</i>,<i>N</i>-Dimethylformamide, and <i>N</i>,<i>N</i>-Dimethylacetamide at 298.15 K

Abstract

Excess molar volumes and viscosities η have been measured as a function of composition for binary mixtures of 2-propoxyethanol and of 2-isopropoxyethanol with 2-pyrrolidinone, N -methyl-2-pyrrolidinone, N, N -dimethylformamide, and N, N -dimethylacetamide at 298.15 K. In all mixtures, the excess molar volumes are negative over the whole mole fraction range. From the experimental data, deviations in the viscosity Δ ln η had been calculated. The excess volumes and viscosity deviations have been correlated using the Redlich−Kister polynomial equation by the method of least-squares for the estimation of the adjustable parameters and the standard errors. The viscosity data have been correlated with the equations of McAllister, Heric, and Auslaender.