01833nas a2200157   4500008004100000022001400041245011700055210006900172260011000241300001400351490000700365520113800372100001701510700001601527856013201543       2016                        eng d  a1463-907600aConcentration-dependent apparent partition coefficients of ionic liquids possessing ethyl-and bi-sulphate anions0 aConcentrationdependent apparent partition coefficients of ionic   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJAN  a1105-11130 v183 a<p>This study deals with the concentration dependent apparent partition coefficients log P of the ethyl and bisulfate-based ionic liquids. It is observed that the bisulfate-based ionic liquids show different behaviour with respect to concentration as compared to ethyl sulphate-based ionic liquids. It is significant and useful analysis for the further implementation of alkyl sulfate based ionic liquids as solvents in extraction processes. The log P values of the ethyl sulphate-based ionic liquids were noted to vary linearly with the concentration of the ionic liquid, whereas a flip-flop trend with the concentration for the log P values of the bisulphate-based ionic liquids was observed due to the difference in hydrogen bond accepting basicity and possibility of aggregate formation of these anions. The pi-pi interactions between the imidazolium and pyridinium rings were seen to affect the log P values. The alkyl chain length of anions was also observed to influence the log P values. The hydrophobicity of ionic liquid changes with the alkyl chain in the anion in the order; [HSO4](-) &lt; [EtSO4](-) &lt; [BuSO4](-).</p>1 aJain, Preeti1 aKumar, Anil  uhttps://library.ncl.res.in/content/concentration-dependent-apparent-partition-coefficients-ionic-liquids-possessing-ethyl-and-1