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A clear, colorless liquid with a chloroform-like odor. Epichlorohydrin is an epoxide compound that is volatile, highly reactive and unstable. Most commonly, epichlorohydrin is combined with Bisphenol A to form Epoxy resins. It is also used as a Solvent for natural and synthetic resins, gums, cellulose esters and ethers in paint, varnish, and nail enamel formulations. Epichlorohydrin is used by the paper industry as an additive to paper pulp because it crosslinks on drying to form a high wet-strength paper. In textile applications, epichlorohydrin is used to modify wool by making it more durable and insect resistant. Epichlorohydrin has also been used as an Insecticide.

Chemical structure


Synonyms and Related Terms

chloropropylene oxide; chloromethyloxirane; chlorohydrin; 1-chloro-2,3-epoxypropane


  • Toxic by inhalation, ingestion and skin absorption.
  • Overexposure may cause nausea, severe pain, respiratory distress and membrane irritation.
  • Human carcinogen.
  • Sigma Aldrich: SDS

Physical and Chemical Properties

Miscible with ethanol, ether, chloroform, trichloroethylene, carbon tetrachloride. Immiscible with water, petroleum hydrocarbons.

Composition C3H5OCl
CAS 106-89-8
Melting Point -25.6 C
Density 1.18 g/ml
Molecular Weight mol. wt. = 92.5
Refractive Index 1.436
Boiling Point 117.9 C

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 3648
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.436
  • Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988