The solubility of 1-ethyl-3-methylimidazolium tris(pentafluoroethyl) trifluorophosphate, [EMIM][FAP] and 1-hexyl-3-methylpyridinium triflate, [(HMPy)-Py-3][CF3SO3] in octan-1-ol, water, and 2-phenylethanol have been determined at ambient pressure. A dynamic method was used over a broad range of mole fractions and temperatures from 270 K to 360 K. The immiscibility in the liquid phase with an upper critical solution temperature (UCST) was observed in ([EMIM][FAP] + octan-1-ol, or water). The complete miscibility in the liquid phase was observed for the binary system ([EMIM][FAP] + 2-phenylethanol). The simple liquidus curves with complete miscibility in the liquid phase were observed for the binary systems ([(HMPy)-Py-3][CF3SO3] + 1-octanol, or 2-phenylethanol) and with miscibility gap in water. The octan-1-ol/water, K-ow and 2-phenylethanol/water, K-Phw partition coefficients in ternary liquid-liquid phase equilibrium were determined for the systems {[EMIM][FAP], or [(HMPy)-Py-3][CF3SO3], or N-octylisoquinolinium bis{(trifluoromethyl)sulfonyl} imide, [OiQuin][NTf2] (1) + octan-1-ol (2) + water (3)} at temperature T = 298.15 K. (C) 2012 Elsevier Ltd. All rights reserved.