Molecular Interaction Studies on Aniline Containing Organic Liquid Mixtures Using Ultrasonic Technique

2 Abstract: Density, viscosity and ultrasonic velocity have been measured for four ternary liquid mixtures containing aniline + benzene with cyclohexane and n-heptane, aniline + toluene with cyclohexane and n- heptane at temperature 303 K. The adiabatic compressibility, free length, free volume, internal pressure and their excess values have been calculated from the experimental data. These parameters are used to discuss the molecular interactions between the component molecules and the excess functions are found to be sensitive to the nature and extent of the interactions taking place in these ternary mixtures.