MOLECULAR INTERACTION STUDY ON BINARY-MIXTURES OF ACETYLACETONE FROM THE EXCESS PROPERTIES OF ULTRASONIC VELOCITY, VISCOSITY AND DENSITY ATVARIOUS TEMPERATURES

The ultrasonic velcocity, viscosity and density of binary mixtures of the extractant acetylacetone with isoamyl alcohol, benzene and carbon tetrachloride have been measured over the entire composition of the mi xtures at 30, 35, 40 and 45-degrees-C. The excess isentropic compressi bility (beta(s)E), excess intermolecular free length (L(f)E), excess a coustic impedance (Z(E)) and excess viscosity (eta(E)) have been calcu lated from the experimental data. These excess values for various mixt ures indicate the existence of specific interaction of acetylacetone w ith benzene and carbon tetrachloride. The higher positive values of Z( E) and eta(E) and less negative values of beta(s)E and L(f)E of acetyl acetone and carbon tetrachloride mixture suggest that a strong molecul ar interaction is likely to operate between the unlike molecules.