Abstract

D. V. M. Krishna Reddy¹, P. B. Sandhya Sri² , K. A. K. Raj Kumar³ and L. Vaikunta Rao^1*

DOI : http://dx.doi.org/10.13005/ojc/390213

The ultrasonic velocities (U), densities (ρ) and viscosities (η) of Binary Mixture O - Chlorophenol + methyl salicylate, + ethyl salicylate and + benzyl salicylate from 303.15 to 318.15K. Excess molar volume (VE), deviation in adiabatic compressibility (Δβad) and excess inter molecular free length (LfE) have been calculated from the measured experimental data. The values of VE, Δβad, LfE and Δη have been fitted to Redlich – Kister polynomial equation to estimate binary coefficients and standard deviation between the experimental and computed values. Using Nomoto's relation (UNR), impedance relation (UIR), ideal mixing relation (Uimx), Junjie's relation (UJ), Rao’s specific velocity relation (UR) and Kudriavtsev relation (UK), the theoretical ultrasonic velocities were evaluated. The computed estimations of ratio in velocity (U2/U2imx) from measured estimations of (U) are graphically shown. The molecular interaction parameter (α) has been evaluated. The validity of the theories were checked by calculating standard deviation and chi square test.

Density; Excess Parameters; Theoretical Velocities; Ultrasonic velocity; Viscosity

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