ULTRASONIC INVESTIGATION OF MOLECULAR INTERACTIONS IN THE SOLUTION OF ROOT EXTRACT OF RICINUS COMMUNIS AT 4 MHZ

Abstract

Ultrasonic Velocity, density, viscosity have been measured experimentally for the solution of leaf extract of Ricinus communis in 50% ethyl alcohol with various concentrations at 298.15 K, 303.15 K, 308.15 K keeping constant frequency of 4 mhz. As the acoustical parameters like adiabatic compressibility, intermolecular free length, relative association, relaxation time, specific acoustic impedence would prove to be more useful to predict and confirm the molecular interactions, these have been determined by measuring the Ultrasonic Velocity, density, viscosity of the prepared solution. A variation in these parameters will provide strong information regarding the molecular interactions taking place in the solution. The propagation of ultrasonic waves affects the physical properties of the medium and hence gives useful information about the molecular interactions such as ion-ion, ion-dipole, dipole-dipole interaction, hydrogen bonding in the solution. Here the study shows that the ultrasonic velocity increases here with increase in concentration this is due to the solvation process of solute by two different solvent molecules like water and ethanol, from this we can say that there is strong solute-solvent interaction in the root extract solution of Ricinus communis.