Solvents are arranged in order of increasing polarity index, a relative measure of the degree of interaction of the solvent with various polar test solutes.
Solvent | Polarity Index |
---|---|
Pentane | 0.0 |
1,1,2-Trichlorotrifluoroethane | 1.6 |
Cyclopentane | 0.2 |
Heptane | 0.1 |
Hexane | 0.1 |
Iso-Octane | 0.1 |
Petroleum Ether | 0.1 - 0.3 |
Cyclohexane | 0.2 |
n-Butyl Chloride | 2.0 |
Toluene | 2.4 |
Methyl t-Butyl Ether | 2.5 |
o-Xylene | 2.5 |
Chlorobenzene | 2.7 |
o-Dichlorobenzene | 2.8 |
Ethyl Ether | 2.8 |
Dichloromethane | 3.1 |
Triethylamine | 3.2 |
Ethylene Dichloride | 3.5 |
n-Butyl Alcohol | 3.9 |
n-Butyl Acetate | 4.0 |
Isobutyl Alcohol | 4.0 |
Methyl Isoamyl Ketone | 4.0 |
n-Propyl Alcohol | 4.0 |
Tetrahydrofuran | 4.0 |
Chloroform | 4.1 |
Methyl Isobutyl Ketone | 4.2 |
Isopropyl Alcohol | 4.3 |
Ethyl Acetate | 4.4 |
Methyl n-Propyl Ketone | 4.6 |
Methyl Ethyl Ketone | 4.7 |
1,4-Dioxane | 4.8 |
Acetone | 5.1 |
Methanol | 5.1 |
Ethanol | 5.2 |
Pyridine | 5.3 |
2-Methoxyethanol | 5.4 |
Acetonitrile | 5.8 |
Propylene Carbonate | 6.0 |
Trifluoroacetic Acid | 6.0 |
N,N-Dimethylformamide | 6.4 |
Dimethyl Acetamide | 6.5 |
N-Methylpyrrolidone | 6.7 |
Dimethyl Sulfoxide | 7.2 |
Water | 10.2 |