Volumetric and Ultrasonic Studies on Interactions of 2-Methoxyethanol/2-Ethoxyethanol in Aqueous Solutions of Inositol at Different Temperatures
Harsimaran Kaur, Nabaparna Chakraborty, K.C. Juglan
Abstract
This study aims to investigate the physicochemical properties of 2-methoxyethanol (2-ME) and 2-ethoxyethanol (2-EE) in aqueous solutions of inositol at different concentrations and temperatures. The physical properties, of the solutions, including density (ρ), speed of sound ( c ), and spectroscopic properties, were measured to analyze the interactions between solutes and solvents. The study was conducted at a pressure of 0.1 MPa and four different temperatures (288.15, 298.15, 308.15, and 318.15) K, with a difference of 10 K between each temperature. The apparent molar properties and partial molar properties were obtained by using density and sound speed data to determine the solute–solvent interactions among the (2-ME/2-EE + water + inositol). The limiting apparent molar expansibilities ( E ϕ 0 ) and its first-order derivatives (∂ E ϕ 0 /∂ T ) p were also calculated. The findings were analyzed to understand the hydrophilic–hydrophilic and hydrophilic–hydrophobic interactions within these systems. In addition, an FTIR spectroscopic study of a binary mixture (inositol and water) was conducted to provide further insights into the interactions between the solutes and solvents.