BUCHI PrepChrom C-700 - Manual (Page 105)

BÜCHI Labortechnik AG Appendix | 11
PrepChrom C­700 105/110
11 Appendix
11.1 Solvent characteristics for normal phase columns
Solvent Solvent
strength S
Dipole param­
eter
Proton ac­
ceptor pa­
rameter
Proton
donor pa­
rameter
Refractive in­
dex
UV limit nm
n­Pentane 0.00 0 0 0 1.358 210
Hexane 0.00 0 0 0 1.357 210
Isooctane 0.01 0 0 0 1.404 210
Petroleum ether 0.01 0 0 0 – 210
Cyclohexane 0.04 0 0 0 1.427 210
Xylene 0.26 0 0.5 0 1.500 290
Diisopropyl ether 0.28 0.5 0.5 0 1.368 220
Toluene 0.29 0 0.5 0 1.496 285
Diethyl ether 0.38 2 2 0 1.353 220
Chloroform 0.40 3 0.5 3 1.443 245
Dichloromethane 0.42 5.5 0.5 0 1.424 245
Tetrahydrofuran 0.45 4 3 0 1.408 220
Acetone 0.56 5 2.5 0 1.359 330
Dioxane 0.56 4 3 0 1.422 220
Ethyl acetate 0.58 3 2 0 1.370 260
Acetonitrile 0.65 8 2.5 0 1.344 200
Propanol 0.82 2.5 4 4 1.380 210
Ethanol 0.88 4 5 5 1.361 210
Methanol 0.95 5 7.5 7.5 1.329 210
Water large large large large 1.333 190