Excess molar volumes, viscosity deviations and speeds of sound for some alkoxyethanols and amines in cyclohexanone at 298.15 K

Abstract

Densities, viscosities and ultrasonic speeds of sound were measured for the binary mixtures of cyclohexanone + 2-methoxy ethanol, + 2-ethoxy ethanol, + 2-butoxy ethanol, + diethylamine and + isopropylamine over the entire range of composition at 298.15 K. From the experimental density, viscosity and ultrasonic speed data, excess molar volumes (), viscosity deviations (Δη) and deviation in isentropic compressibility (ΔκS) have been calculated. The excess or deviation properties were fitted to Redlich–Kister polynomial equation. From excess molar volumes (), partial molar volumes ( and ) and excess partial molar volumes ( and ) at infinite dilution were calculated. Various acoustic parameters have also been calculated from the density and ultrasonic speed data. McAllister's three-body and Heric–Brewer model have been used to correlate viscosities of the binary mixtures. The various properties were discussed in terms of molecular and structural changes.