Acoustical and Excess Properties on Ternary Liquid Mixtures of Ortho Methoxy Phenol, 1 Butanol and n-Hexane at Different Temperatures

Abstract

The Ultrasonic velocity (U), density (ρ), and viscosity (η) have been measured experimentally for the ternary liquid mixtures of ortho methoxy phenol (omp), 1 butanol and n hexane at various temperatures viz., 303 K, 308 K and 313 K at constant frequency 2 MHz. for different concentrations ranges from 0.001 M to 0.01 M. The thermodynamic and acoustical parameters such as adiabatic compressibility (β), Rao constant (R), absorption coefficient (α/f2), internal pressure (πi), cohesive energy (CE), free volume (Vf), free length (Lf), acoustic impedance (z), available volume (Va), viscous relaxation time and Lenard Jones potential were calculated from the experimental data. The various excess properties including excess Ultrasonic velocity, excess acoustic impedance, excess free length, excess adiabatic compressibility, excess free volume and excess internal pressure were also computed. These parameters in accordance with their ultrasonic velocities corresponding to different concentrations of the mixture have been discussed. The molecular interactions were predicted based on the results obtained for ultrasonic velocities of different concentrations of the ternary mixtures at different temperatures.