Densities and Viscosities of the Regular Quinary System: Toluene (1) + Octane (2) + Ethylbenzene (3) + Tetradecane (4) + Hexadecane (5) and Its Quaternary Subsystems at (308.15 and 313.15) K

The densities and kinematic viscosities of the quaternary subsystems of the regular quinary system toluene (1) + octane (2) + ethylbenzene (3) + tetradecane (4) + hexadecane (5) were measured over the entire composition range at 308.15 K and 313.15 K. The viscosity deviations from the mole fraction-averaged viscosity of the mixture were calculated from the absolute viscosity data. All of the viscosity deviations are negative. The viscosity data reported herein were used to test the predictive capabilities of the predictive version of the McAllister model, which was reported by Nhaesi and Asfour and the Grunberg−Nissan equation. The obtained results showed that the McAllister model predicts the viscosity data better than the Grunberg−Nissan equation.