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Extraction solvents and associated polarity index values.
| Solvent | Polarity index (snyder)1 |
|---|---|
| Diethyl ether | 2.8 |
| Dichloromethane | 3.1 |
| Chloroform | 4.1 |
| Isopropanol | 4.3 |
| Acetonitrile | 5.8 |
| Methanol | 6.6 |
| Water | 9 |
| Chloroform/isopropanol (90:10, v/v) | Unknown |
Snyder's Polarity Index Values of Common Laboratory Solvents. Available online at: http://www.sanderkok.com/techniques/hplc/eluotropic_series_extended.html#1.
