Mixotropic series according to Hecker

For selection of solvents in countercurrent extraction. E. Hecker in "Verteilungverfahren im Laboratorium" Monograph, Angew. Chemie, Verlag Chemie, Weinberg/Bergstrasse
Least polar
liquid paraffin
hexaneimage ofhexane
heptaneimage ofheptane
isooctaneimage ofisooctane
cyclohexaneimage ofcyclohexane
cyclopentaneimage ofcyclopentane
carbon disulphideimage ofcarbon disulphide
carbon tetrachlorideimage ofcarbon tetrachloride
tolueneimage oftoluene
benzeneimage ofbenzene
1,1,2-trichloroethaneimage of1,1,2-trichloroethane
dichloroethane
chloroformimage ofchloroform
1,1,2,2-tetrachloroethaneimage of1,1,2,2-tetrachloroethane
methylene chlorideimage ofmethylene chloride
diethyl etherimage ofdiethyl ether
methyl ethyl ketoneimage ofmethyl ethyl ketone
ethyl acetateimage ofethyl acetate
pyridineimage ofpyridine
tetrahydrofuranimage oftetrahydrofuran
dioxaneimage ofdioxane
acetoneimage ofacetone
anilineimage ofaniline
phenolimage ofphenol
ethanolimage ofethanol
glymeimage ofglyme
methanolimage ofmethanol
acetic acidimage ofacetic acid
acetonitrileimage ofacetonitrile
nitromethaneimage ofnitromethane
formic acidimage offormic acid
morpholineimage ofmorpholine
formamideimage offormamide
lactic acidimage oflactic acid
waterimage ofwater
inorganic acids
aqueous buffers
Most polar