Ionic Liquids/Water Distribution Ratios of Some Polycyclic Aromatic Hydrocarbons

Abstract

By using the shake-flask procedure, the distribution ratios (D) at infinite dilution and 298.1 K of 15 polycyclic aromatic hydrocarbons (PAHs) between room-temperature ionic liquids, 1-alkyl-3-methylimiazolium hexafluorophosphates ([CnMIM][PF6], n = 4 and 8), and water were determined. The log D values are in the range of 3.34−4.36, which increased very slowly with the molar mass of PAHs.