Ultrasonic Velocity and Compressibility Variation in Inorganic Sulphates with Aqueous Polymer Solutions

Abstract

Ultrasonic velocity measurements have been carried out in the mixtures of Zinc sulphate, and manganese sulphate with PVP (Polyvinylpyrrolidone) to study the molecular interactions. The basic acoustical parameters like ultrasonic velocity (U), density (ρ) and viscosity (η) have been measured for the mixtures of aqueous PVP (polyvinylpyrrolidone) with aqueous sulphates for temperatures 303K, 308K, and 313K.The measured parameters are used to calculate acoustical parameters such as acoustic impedance, intermolecular free length, adiabatic compressibility, and relaxation time. The acoustical velocity, adiabatic compressibility and impedance vary with concentration of the mixtures and temperatures. It is the evidence for the presence of strong molecular interactions occurred in the liquid mixtures.