Effect of temperature on the excess molar volumes of some alcohol + aromatic mixtures and modelling by cubic EOS mixing rules

• Published in: Fluid phase equilibria Vol. 239; no. 1; pp. 69 - 82
• Main Authors: SERBANOVIC, Slobodan P, KIJEVCANIN, Mirjana Lj, RADOVIC, Ivona R, DJORDJEVIC, Bojan D
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 05.01.2006; Elsevier Science
• Subjects: Alcohols; Aromatics; Chemical thermodynamics; Chemistry; Cubic EOS mixing rules; Exact sciences and technology; Excess molar volume; Experiments; General and physical chemistry; Mixtures; Thermodynamic properties; Aromatics; Cubic EOS mixing rules; Experiments; Excess molar volume; Alcohols; Ethanol; Molar volume; Temperature effect; Alcohol; Excess parameter; Modeling; Mixture; Primary alcohol; Equations of state; Benzene; Chlorocarbon; Mixing rule; Aromatic compound; Thermodynamic properties; Methanol
• ISSN: 0378-3812; 1879-0224
• DOI: 10.1016/j.fluid.2005.10.022

Densities of the (methanol + benzene), (ethanol + benzene), (methanol + chlorobenzene) and (ethanol + chlorobenzene) mixtures have been measured at six temperatures (288.15, 293.15, 298.15, 303.15, 308.15 and 313.15 K) and 101.33 kPa. Excess molar volumes V E were determined and fitted by the Redlich–Kister equation. It was observed that in all cases V E increases with rising of temperature. The values of limiting excess partial molar volumes have been calculated, as well. The obtained results have been analysed in terms of specific molecular interactions present in these mixtures taking into considerations effect of temperature on them. The correlation of V E binary data was performed with the Peng–Robinson–Stryjek–Vera cubic equation of state (PRSV CEOS) coupled with the van der Waals (vdW1) and CEOS/ G E mixing rule introduced by Twu, Coon, Bluck and Tilton (TCBT). The experimental values of V E were compared with those estimated by both mixing rules at the temperature range and on each temperature, separately.