Ultrasonic and volumetric behaviour of glycols with sodium ethylparaben in aqueous medium from T = 293.15 to 308.15 K at atmospheric pressure

Abstract

Volumetric and acoustic analysis is set in motion to inspect the sodium ethylparaben interaction with ethylene glycol, and propylene glycol as a function of temperature. The estimation of apparent molar volume and apparent molar isentropic compression of glycols in aqueous solutions of sodium ethylparaben has been done by employing densities and speed of the sound measurements at p = 0.1 MPa and T = 293.15 to 308.15 K. The partial molar volume, partial molar isentropic compression, partial molar volume of transfer and partial molar isentropic compression of transfer have been scrutinized from the density and speed of sound data. The partial molar expansibility is also determined. The data estimated from transfer properties is exercised to examine coefficients of pair and triplet interaction. Further, the results are explicated in terms of co-solutes and solvents associations establishing in solution mixture together with structure rupturing behaviour of glycols in aqueous solutions of sodium ethylparaben.