Acoustical Parameters of Binary Mixtures of 1,4-Dicholorobutane with Some Hydrocarbons at 308.15k, 313.15k and 318.15k

Several acoustical parameters viz. free length ( L f ), Wada's constant ( W ), acoustical impedance ( Z ), available volume ( V a ) and relaxation time ( τ ) have been evaluated from the experimental values of ultrasound velocities (u) and densities (ρ) of the binary mixtures of 1,4-dichlorobutane with several hydrocarbons viz. cyclohexane, benzene, methylbenzene, 1,2-dimethylbenzene, 1,4-dimethylbenzene and 1,3,5-trimethylbenzene over entire mole fractions range at three temperatures 308.15K, 313.15K, and 318.15K. L f values decrease for all the systems as molefraction of 1,4-dichlorobutane increase in the binary mixtures at the three experimental temperatures. Wada constant increase for binary mixtures of 1,4-dichlorobutane with cyclohexane, benzene and methylbenzene as mole fractions of 1,4-dichlorobutane increase and for other three binary mixtures it decrease. Z and τ values increases with molefractions of 1,4-dichlorobutane for all binary mixture except τ values for the binary mixtures with cyclohexane which decrease. V a values for binary mixtures of 1,4-dichlorobutane with benzene, methylbenzene and 1,2-dimethylbenzene increase and for other three experimental binary systems decrease as molefractions of 1,4-dichlorobenzene increase.