An Advanced Study of Ultrasonic Velocity, Density and Compressibility by Using Polar-Nonpolar Binary Liquid Mixtures at 303.15 K

The ultrasonic velocity (U), density ( ) and compressibility ( ) of polar-nonpolar binary liquid mixtures of Nitro methane (NM) with Toluene at 303.15 K have been measured and studied. From this data, thermodynamic parameters have been calculated such as excess velocity, excess acoustic impedance and excess adiabatic compressibility. The results have been interpreted in terms of molecular interaction between polar and non-polar binary mixtures. Excess parameters are fitted to obtain standard deviation of the data. Thus from the results obtained, it can be conclude that the polar NM has weak interaction with non-polar toluene. The weaker interaction attributes the de-clustering or rupture of hydrogen bonding via dissociation between the different types of species of the molecules, which is due to occurrence of structure breaking factor.