Mixotropic series according to Hecker

Mixotropic series according to Hecker used in the selection of solvents in countercurrent extraction.
E. Hecker in "Verteilungverfahren im Laboratorium" Monograph, Angew. Chemie, Verlag Chemie, Weinberg/Bergstrasse

Least polar
liquid paraffin
hexanestructure of hexane
heptanestructure of heptane
isooctanestructure of isooctane
cyclohexanestructure of cyclohexane
cyclopentanestructure of cyclopentane
carbon disulphidestructure of carbon disulphide
carbon tetrachloridestructure of carbon tetrachloride
toluenestructure of toluene
benzenestructure of benzene
1,1,2-trichloroethanestructure of 1,1,2-trichloroethane
dichloroethane
chloroformstructure of chloroform
1,1,2,2-tetrachloroethanestructure of 1,1,2,2-tetrachloroethane
methylene chloridestructure of methylene chloride
diethyl etherstructure of diethyl ether
methyl ethyl ketonestructure of methyl ethyl ketone
ethyl acetatestructure of ethyl acetate
pyridinestructure of pyridine
tetrahydrofuranstructure of tetrahydrofuran
dioxanestructure of dioxane
acetonestructure of acetone
anilinestructure of aniline
phenolstructure of phenol
ethanolstructure of ethanol
glymestructure of glyme
methanolstructure of methanol
acetic acidstructure of acetic acid
acetonitrilestructure of acetonitrile
nitromethanestructure of nitromethane
formic acidstructure of formic acid
morpholinestructure of morpholine
formamidestructure of formamide
lactic acidstructure of lactic acid
waterstructure of water
inorganic acids
aqueous buffers
Most polar