Densities, Viscosities, and Speed of Sound Studies of Binary Mixtures of Methylbenzene with Heptan-1-ol, Octan-1-ol, and Decan-1-ol at (303.15 and 313.15) K

Abstract

Densities, viscosities, and the speed of sound of binary mixtures of methylbenzene with heptan-1-ol, octan-1-ol, and decan-1-ol have been measured over the entire range of composition, at (303.15 and 313.15) K and at atmospheric pressure (p = 0.1 MPa). The excess molar volumes (VE), deviations in viscosity (Δη), and excess isentropic compressibility κEs have been calculated from the experimental values of density, viscosity, and ultrasonic velocity. The excess molar volumes and excess isentropic compressibility are positive for all three binaries studied over the whole composition, whereas deviations in viscosities are negative for all three binary mixtures. The excess molar volumes, deviations in viscosity, and excess isentropic compressibility have been fitted to the Redlich−Kister polynomial equation. The recently proposed Jouyban−Acree model is used to correlate the experimental values of density, viscosity, and ultrasonic velocity at different temperatures.