Abstract

Densities and ultrasonic velocities of binary liquid mixtures of triethylamine with carbitols, methyl carbitol, ethyl
carbitol and butyl carbitol, have been measured at 308.15 K. The observed data have been utilized to calculate
various acoustical parameters such as isentropic compressibility (KS), intermolecular free length (Lf), and acoustic
impedance (Z). The various excess properties such as excess ultrasonic velocity (uE), excess acoustic impedance
(ZE), excess isentropic compressibility (KSE), and excess intermolecular free length (LfE) were calculated. The
results were discussed in terms of the existence of intermolecular interactions between the components in the
liquid mixtures under the study.