Solid-liquid phase diagrams of binary aromatic hydrocarbon mixtures from calorimetric studies

• Published in: Journal of chemical and engineering data Vol. 34; no. 2; pp. 223 - 226
• Main Authors: Sediawan, Wahyudi B, Gupta, Sumnesh, McLaughlin, Edward
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.04.1989
• Subjects: 400201 - Chemical & Physicochemical Properties; BINARY MIXTURES; CALORIMETRY; Chemistry; DIAGRAMS; DISPERSIONS; Exact sciences and technology; FLUIDS; General and physical chemistry; HEAT FLUX; HYDROCARBONS; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; Liquid-liquid equilibria; Liquid-solid equilibria; Liquid-vapor equilibria; LIQUIDS; MIXTURES; ORGANIC COMPOUNDS; Others (including liquid-liquid-vapor equilibria); PHASE DIAGRAMS; Phase equilibria; SOLIDS; Sulfur heterocycle; Hydrocarbon; Phase diagram; Binary system; Calorimetry; Liquid solid equilibrium; Tricyclic compound; Experimental study; Oxygen heterocycle; Phase equilibrium
• ISSN: 0021-9568; 1520-5134
• DOI: 10.1021/je00056a023

The authors describe solid-liquid phase diagrams of binary mixtures of aromatic hydrocarbons obtained from calorimetric studies. The sample of the binary solid mixture is heated at a constant rate until the solid is completely melted. During that process, the heat flux needed is monitored. By examination of the curves of the heat flux versus temperature, the solid-liquid phase diagrams can be constructed. Three binary systems (fluorene-dibenzofuran, dibenzothiophene-dibenzofuran, fluorene-dibenzothiophene) have been studied. It turns out that the fluorene-dibenzofuran system forms a solid solution at any composition, while dibenzothiphene-dibenzofuran and fluorene-dibenzothiophene systems have immiscibility gaps in the solid phases.