Acoustical investigations of phenol in hydrocarbons (o, p, m-xylene) at 301 K

The ultrasonic velocity, density and viscosity of the binary mixtures of phenol with hydro carbon (o/p/m-xylene) are measured at 301K. The acoustical parameter like adiabatic compressibility (β) , free volume (Vf), relaxation time (τ) , inter molecular free length (Lf), acoustic impedance (Z) , relative association (RA) , molar volume (Vf), Lennard - Jones Potential (L-J) , Rao constant ( R ) and Wada’s constant (W) have been found from these measurements. The results are discussed in terms of molecular interactions. The acoustical parameter indicates that there may be an interaction occurs due to the weak kind of molecular forces. The existence of molecular interactions between the molecules alters the acoustical property of liquids. The existence of bonding and the nature of molecular interaction in the mixtures have been specified. When the concentration of phenol increases the interaction between phenol- o/p/m – xylene also increases.

Author(s): M. Meenachi, P. Krishnamurthi, C. Shanthi and H. B. Ramalingam

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