Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

ABSTRACT

Binary phase diagrams of several polynuclear aromatic hydrocarbons in wash oil including dibenzofuran + anthracene, dibenzofuran + carbazole, acenaphthene + carbazole, acenaphthene + anthracene, fluorene + anthracene, and fluorene + carbazole have been determined by using differential scanning calorimetry (DSC). The results show that the former five systems are simple eutectic systems. The Ott empirical equation and regular solution theory were employed to correlate the solid-liquid equilibrium data. Both equations were found to represent accurately the nonideality of the liquid-phase for the five systems. It turns out that fluorene + carbazole system forms solid solution at any composition. Furthermore, the experimental data were correlated using a polynomial equation. The predicted results are also in good agreement with the experimental data.