Thermophysical properties for (diethyl carbonate + p-xylene + octane) ternary system

• Published in: The Journal of chemical thermodynamics Vol. 43; no. 12; pp. 1984 - 1990
• Main Authors: Mosteiro, L., Casás, L.M., Currás, M.R., Mariano, A.B., Legido, J.L.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.12.2011; Elsevier
• Subjects: Carbonates; Chemical thermodynamics; Chemistry; Compressibility; Correlation; Density; Deviation; Diethyl carbonate; Exact sciences and technology; General and physical chemistry; Mathematical analysis; Mixtures; Octane; p-Xylene; Surface tension; Thermodynamic properties; Octane; Surface tension; Diethyl carbonate; p-Xylene; Density; Ternary system; Organic carbonate; Hydrocarbon; Isentropic compression; Molar volume; Excess parameter; Physical properties; Surface properties; Aromatic compound; Thermodynamic properties; Thermophysical properties
• ISSN: 0021-9614; 1096-3626
• DOI: 10.1016/j.jct.2011.07.012

► Thermophysical properties of (diethyl carbonate + p-xylene + octane) were measured. ► Excess molar volumes and isentropic compressibilities were determined and correlated. ► Ternary surface tension deviations were correlated using Cibulka equation. ► Intermolecular interactions based on the derived properties trend were discussed. The density and speed of sound of the ternary mixture (diethyl carbonate + p-xylene + octane) have been measured at atmospheric pressure and in the temperature range T = (288.15 to 308.15) K. Besides, surface tension has been also determined for the same mixture at T = 298.15 K. The experimental measurements have allowed the calculation of the corresponding derived properties: excess molar volumes, excess isentropic compressibilities, and surface tension deviations. Excess properties have been correlated using Nagata and Tamura equation and correlation for the surface tension deviation has been done with the Cibulka equation. Good accuracy has been obtained. Based on the variations of the derived properties values with composition, a qualitative discussion about the intermolecular interactions was drawn.