Keywords: Compressibility; acoustic impedance binary mixtures; ultrasonic velocity; excess parameters

Abstract

Density and ultrasonic study for the binary mixtures of trichloroethylene and 1-pentanol over the entire concentration range were measured at temperatures 308 K. The experimental data was then used to calculate the compressibility, acoustic impedance, molecular free length, inverse relaxation time, and excess parameters. The values of excess properties further fitted with Redlich–Kister polynomial equation to estimate the binary coefficients. The resulting excess functions were interpreted in terms of the interactions between the molecules in the binary mixtures. Results confirmed that hydrogen-bonded intermolecular interaction took place between trichloroethylene and 1-pentanol.