Ultrasonic, volumetric and viscometric study of molecular interactions in binary mixtures of 2,2,4-trimethyl pentane with n-hexane and cyclohexane at308 K

Experimental values of density, ultrasonic speed and viscosity for the binary mixtures of 2,2,4-trimethyl pentane with n-hexane and cyclohexane are presented at 308 K over the entire mole fraction range. From these data, isentropic compressibility, relative association, acoustic impedance, molar sound speed, molecular association, deviations in isentropic compressibility, excess volume, deviations in ultrasonic speed, excess acoustic impedance and deviations in viscosity have been calculated. These parameters were used to study the nature and extent of intermolecular interactions between component molecules in the present binary mixtures. The ultrasonic speeds and viscosities were theoretically evaluated using different empirical relations and theories. The relative merits of these relations and theories were discussed.