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preface to fifteenth edition

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TABLE 11.11<br />

Solvents of Chroma<strong>to</strong>graphic Interest<br />

Continued<br />

Solvent<br />

Boiling<br />

point,<br />

C<br />

Solvent strength parameter<br />

e (SiO 2 ) e (Al 2 O 3 )<br />

Viscosity,<br />

mN · s · m 2<br />

(20C)<br />

Refractive<br />

index<br />

(20C)<br />

UV<br />

cu<strong>to</strong>ff, nm<br />

Diethyl ether 35 0.38 0.38 0.25 1.353 218<br />

Diethyl sulfide 92 0.38 0.45 1.443 290<br />

Chloroform 62 0.26 0.40 0.57 1.443 245<br />

Dichloromethane 41 0.42 0.44 1.425 235<br />

4-Methyl-2-pentanone 116 0.43 0.42 15C 1.396 335<br />

Tetrahydrofuran 66 0.45 0.55 1.407 220<br />

1,2-Dichloroethane 84 0.49 0.80 1.445 228<br />

2-Butanone 80 0.51 0.42 15C 1.379 330<br />

1-Nitropropane 131 0.53 0.80 25C 1.402 380<br />

Ace<strong>to</strong>ne 56 0.47 0.56 0.32 1.359 330<br />

1,4-Dioxane 101 0.49 0.56 1.44 15C 1.420 215<br />

Ethyl acetate 77 0.38 0.58 0.45 1.372 255<br />

Methyl acetate 56 0.60 0.48 15C 1.362 260<br />

1-Pentanol 138 0.61 4.1 1.410 210<br />

Dimethyl sulfoxide 189 0.62 2.47 1.478 265<br />

Aniline 184 0.62 4.40 1.586<br />

Diethylamine 56 0.63 0.33 1.386 275<br />

Nitromethane 101 0.64 0.67 1.394 380<br />

Ace<strong>to</strong>nitrile 82 0.50 0.65 0.37 1.344 190<br />

Pyridine 115 0.71 0.97 1.510 330<br />

2-Bu<strong>to</strong>xyethanol 170 0.74 3.15 25C 1.420 220<br />

1-Propanol 97 0.82 2.25 1.386 210<br />

2-Propanol 82 0.82 2.50 1.377 210<br />

Ethanol 78 0.88 1.20 1.361 210<br />

Methanol 65 0.95 0.59 1.328 210<br />

Ethylene glycol 198 1.11 21.8 1.432 210<br />

Acetic acid 118 large 1.23 1.372 260<br />

Water 100 large 1.00 1.333 191<br />

11.17

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