Intermolecular Interactions in Mixtures of Ethyl Formate with Methanol, Ethanol, and 1-Propanol on Density, Viscosity, and Ultrasonic Data

Density (rho), viscosity (eta), and ultrasonic velocity (U) have been measured for binary mixtures of ethyl formate with methanol, ethanol, and 1-propanol at 303 K. From the experimental data, adiabatic compressibility (beta), acoustic impedance (Z), viscous relaxation time (tau), free length (L-f), free volume (V-f), internal pressure (pi(i)), and Gibbs free energy (Delta G) have been deduced. It is shown that strength of intermolecular interactions between ethyl formate with selected 1-alcohols were in the order of methanol < ethanol < 1-propanol.