Molecular interaction study in binary mixtures of N, N-dimethylacetamide with 2-ethoxyethanol at three different temperatures

Densities, viscosities and ultrasonic velocities of the binary mixture of 2-ethoxyethanol (EE) with different mole fractions of N,N-dimethylacetamide (DMA) have been measured at 298.15, 308.15 and 318.15K. From the experimental data, isentropic compressibility, intermolecular free length, acoustic impedance, molar sound speed and some of their respective excess properties were calculated. The computed results have been fitted to the Redlich-Kister polynomial to estimate the binary coefficients and standard deviations. Deviation of excess properties have been explained in terms of the interaction between unlike molecules in the binary mixtures.