Abstract
Ultrasonic velocity (U) and density (ρ) of the ternary mixtures of di-(2-ethylhexyl) phosphoric acid (DEHPA), benzene and m-xylene were measured at atmospheric pressure and temperatures from 298.15K to 313.15K at an interval of 5K. The experimental data have been used to calculate adiabatic compressibility (Ks), intermolecular free length (Lf), acoustic impedance (Z), surface tension (), molar volume (Vm) and Wada's constant (W). From the data, the deviations in adiabatic compressibility (Ks), ultrasonic velocity (U), intermolecular free length (Lf) and acoustic impedance (Z) were calculated. The results are discussed in terms of molecular interaction among components of the ternary mixture. The theoretical values of ultrasonic velocity have been calculated using various empirical relations and are compared with the corresponding experimental data by calculating percentage deviation.
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