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Polarity Index

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http://macro.lsu.edu/howto/solvents/Polarity index.htm

Polarity Index Burdick & Jackson 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.

Polarity Index (P´) Pentane 1,1,2-Trichlorotrifluoroethane Cyclopentane Heptane Hexane

0.0 0.0 0.1 0.1 0.1

Iso-Octane Petroleum Ether Cyclohexane n-Butyl Chloride

0.1 0.1 0.2 1.0

Toluene Methyl t-Butyl Ether o-Xylene Chlorobenzene o-Dichlorobenzene

2.4 2.5 2.5 2.7 2.7

Ethyl Ether Dichloromethane Ethylene Dichloride n-Butyl Alcohol Isopropyl Alcohol

2.8 3.1 3.5 3.9 3.9

n-Butyl Acetate Isobutyl Alcohol Methyl Isoamyl Ketone n-Propyl Alcohol Tetrahydrofuran

4.0 4.0 4.0 4.0 4.0

Chloroform Methyl Isobutyl Ketone Ethyl Acetate Methyl n-Propyl Ketone

4.1 4.2 4.4 4.5

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Polarity Index

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http://macro.lsu.edu/howto/solvents/Polarity index.htm

Methyl Ethyl Ketone

4.7

1,4-Dioxane Acetone Methanol Pyridine 2-Methoxyethanol

4.8 5.1 5.1 5.3 5.5

Acetonitrile Propylene Carbonate N,N-Dimethylformamide Dimethyl Acetamide N-Methylpyrrolidone

5.8 6.1 6.4 6.5 6.7

Dimethyl Sulfoxide Water

7.2 10.2

Not included:

Ethyl Alcohol Glyme Isopropyl Myristate 1,2,4-Trichlorobenzene Triethylamine Trifluoroacetic Acid

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