Densities and excess volumes of binary mixtures of the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate with aromatic compound at T (298.15 to 313. 15) K

作者：Zhong Yanwei; Wang Haijun^*; Diao Kaishen

来源：Journal of Chemical Thermodynamics, 2007, 39(2): 291-296.

DOI：10.1016/j.jct.2006.07.001

• ionic liquids
• 1-butyl-3-methylimidazolium hexafluorophosphate
• binary mixtures
• density
• excess molar volumes

The density of two binary mixtures formed by 1-butyl-3-methylimidazolium hexafluorophosphate [bmim][PF6] with aromatic compound (benzyl alcohol or benzaldehyde) has been determined over the full range of compositions Lit the temperature range from 298.15 K to 313.15 K and at atmospheric pressure using a vibrating-tube densimeter (DMA4500). Excess molar volumes (V(m)(E)) have been obtained from these experimental results, and been fitted by the fourth-order Redlich-Kister equation. Our results show V(m)(E) decreases slightly when temperature increases in the systems studied. The results have been interpreted in terms of ion-dipole interactions and structural factors of the ionic liquid and these organic molecular liquids.

• 出版日期2007-2
• 单位江南大学