Measurement, correlation, and modeling of volumetric, viscosimetric, acoustic, and optical properties in ternary mixtures of alcohols, ethers, and hydrocarbons between 298.15 and 313.15 K

Abstract

New experimental data on density ($\rho$), dynamic and kinematic viscosities, $\left(\eta ,\mu \right)$ for the following ternary mixtures: 2-butanol (Belale and F.E. M'hamdi Alaoui, M. Lifi, Y.Chhiti, M. Elkhouakhi, L., 2020 (1)) + isopropyl ether (Alaoui et al., 2015 (2)) + 1-hexene (Abala and Lifi, 2021 (3)) and 2-propanol (Belale and F.E. M'hamdi Alaoui, M. Lifi, Y.Chhiti, M. Elkhouakhi, L., 2020 (1)) + isopropyl ether (Alaoui et al., 2015 (2)) + 1-hexene (Abala and Lifi, 2021 (3)) are presented in this work at four temperatures between 298.15 and 313.15 K and $p$ = 0.1 MPa. Additionally, the speed of sound ($u$) and refractive index ($n_D$) for the same ternary mixtures were measured at 298.15 K and 313.15 K. Various derived properties were calculated from the experimental results of these thermophysical properties, including excess volume, $V^E,$ deviation in refractive index, $∆n_D$, deviation in dynamic viscosity, $∆\eta ,$ deviations in speed of sound, $∆u,$ isentropic compressibility, $k_s,$ and deviation in isentropic compressibility, $∆k_s.$ The Redlich-Kister equation and the typical semi-empirical Cibulka equations were used to correlate all of these derived properties. Moreover, the Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT) equation of state was employed to fit the experimental density data, and good agreement between the experimental and modeled density results for the binary mixtures studied.