Studies In The Acoustical Parameters Of Salicylic Acid Solution At Different Frequencies

The molecular interactions in the liquids provide valuable information about the liquids and solutions. The nature of interactions between molecules in liquids and solutions can be elucidated by using the thermodynamic and acoustical parameters. The study of propagation of ultrasonic waves in liquid systems is established as a simple and significant tool in determining the nature of interactions between molecules in solution. The ultrasonic velocity, viscosity and density of salicylic acid solution in ethanol were measured at 303.15 K at different frequencies. Using the above data, acoustic parameters such as adiabatic compressibility, Rao’s Constant, Wada’s Constant, Specific acoustic impendence and intermolecular free length are evaluated and variations of these parameters are analyzed. Apparent molar compressibility and Relaxation time was determined by using above data. The results are interpreted in terms of solute solvent interactions occurring in the solution.