Volumetric, Viscometric, Acoustic, and Optical Properties of Ternary Liquid Mixtures Containing 1-Propanol, 1,3-Diaminopropane, and Methyl Acetate at Temperatures of 298.15–318.15 K

Abstract

The molecular interactions of ternary mixtures of 1-propanol + 1,3-diaminopropane + methyl acetate were studied by the insight into the physicochemical properties of given liquid mixtures. Density, viscosity, speed of sound, and refractive index data were measured for 1P, 1,3-DAP, MAc, and their ternary liquid mixtures at five different temperatures (T = 298.15–318.15 K) and at 0.1 MPa pressure. Based on the experimental data, excess molar volume, deviation in viscosity, deviation in ultrasonic speed, excess molar isentropic compressibility, excess free volume, excess intermolecular free length, excess available volume, and deviation in refractive index were calculated, and these evaluated properties were fitted to the Singh equation. The excess molar volume data were also fitted to the Nagata and Cibulka equations. Further, the Kohler model, Tsao–Smith model, Radojkovic model, Jacob–Fitzner model, and Rastogi model were used to calculate the excess molar volume values. Different correlations were applied for the estimation of the speed of sound and refractive index values.