Measurement and modeling of the excess properties of binary and ternary mixtures of n-hexane, Propan-2-ol, and Butan-1-ol at Different Temperatures

الملخص

This study aims to correlate the excess thermodynamic properties for new desirable mixtures. The density and viscosity of pure components and mixtures were measured over the entire composition range at atmospheric pressure and different temperatures. The results of measuring the density and viscosity were used to calculate the excess molar volumes, excess viscosity, and excess activation energies of viscous flow were reported for binary and ternary mixtures of n-hexane, propan-2-ol, and butan-1-ol at temperatures 298.15, 308.15, 318.15, 328.15, and 338.15 K and over the whole mole fraction range. For all of the binary and ternary mixtures the computed excess molar volumes were correlated by applying the Redlich–Kister equation. And Prigogine–Flory–Patterson (PFP) theory. The correlations of excess volume, excess viscosity and excess activation energies to understand the effect of polar and nonpolar and temperature increase in the systems. Many works carried out to predict the excess thermodynamic properties, but the mixtures of this work have not been studied so far at such conditions. It is hoped that the present work will help in the availability of experimental data for some unknown mixtures to understand their behavior in the chemical processes, petrochemical industries and design processes.