Molecular Interactions in Binary Liquid Mixtures of Cyclohexanone with Morpholine, Bromobenzene and Anisole at 308.15 K and 318.15 K

Abstract

Densities, viscosities and ultrasonic velocities have been measured for the binary mixtures of cyclohexanone with morpholine, bromobenzene and anisole at 308.15 K and 318.15 K over the entire range of mole fraction. Thermodynamic parameters like excess volume, adiabatic compressibility, free volume, linear free energy, acoustic impedance and viscosity are calculated. From these values the excess properties are also calculated. The deviations of the liquid mixture from ideality have been explained based on the nature molecular interactions between unlike molecules.

Study on Interaction Capabilities of Ternary Liquid Mixtures by Thermodynamic Parameters at 308.15 K

“…The overall accuracy in the measurement is ±0.2%. All the measurements were made using a digital thermostat which displays accuracy ±0.01 K. The details of the methods and techniques of the measurements have been described earlier [12,13]. The following are the equations used in calculating thermodynamic parameters nitrobenzene (3) and toluene (3) at 308.15 hence form the main scope of the present work.…”

“…n is the number of measurements and m is the number of adjustable parameters.1,4-dioxane could be classified as a non-polar solvent, but the distribution of electric charge gives a large quadruple moment to 1,4-dioxane [18]. The presence of substituent in the aromatic hydrocarbon should modulate its electron-acceptor ability [19].…”

Density, viscosity, ultrasonic velocity and excess thermodynamic parameters of ternary liquid mixtures of morpholine + 1,4-dioxane + toluene or nitrobenzene at 308.15 K

“…12,13 RESULTS AND DISCUSSION 1,4-Dioxane could be classified as a non-polar solvent, but the distribution of electric charge gives a large quadurpole moment to 1,4-dioxane. 14,15 The presence of a substituent in the aromatic hydrocarbon should modulate its electron-acceptor ability. 16,17 The cyclic ethers morpholine and 1,4-dioxane (p-dioxane) are hexa cyclic compounds with similar shapes.…”

Thermodynamic Properties of Binary Mixtures of Methyl Benzoate with Chlorobenzene and Benzaldehyde at 308.15 and 318.15K

“…Densities of pure liquids and liquid mixtures were measured by relative density method [15-18] using 10 mL relative density bottle and weighed with an accuracy of ± 0.001 kg m -3 . Viscosities were determined using an Oswald viscometer of 10 mL capacity with an accuracy of ± 0.001 mPa [15][16][17][18][19]. From the measured values of density (ρ) and flow time (t), viscosity (η) was calculated using the following relation [14][15][16][17]: [ ] [ ]…”