Ultrasonic Investigations of Molecular Interaction in Binary Mixtures of Benzyl Benzoate with Isomers of Butanol
The density and speed of sound have been measured for the systems (Benzyl Benzoate + n-butanol, sec-butanol, tert-butanol) at different molefraction and at different temperatures 308.15K, 313.15K respectively. From these experimental data the excess/ deviation acoustic parameters such as deviation in isentropic compressibility, excess intermolecular free length, excess acoustic impedance and deviation in ultrasonic velocity have been calculated for the binary systems at 308.15 K and 313.15 K temperatures. The calculated excess / deviation functions have been fitted to Redlich-Kister polynomial using multi parametric non- linear regression analysis to estimate the coefficients and standard errors. The variation of these properties with composition and temperature of the binary mixtures have been studied in terms of molecular interactions between unlike molecules of the mixtures. Further, the results are supported by FTIR spectra.