Epichlorohydrin
CAS 106-89-8
EC 203-439-8
Formula C3H5ClO
MW 92.52 g/mol
Monomers & Building Blocks Plastics & PolymersTextile, Leather & PaperPrinting & Packaging Polymerization InitiationPreservation & BiocideFlame Retardancy
Description
Epichlorohydrin (CAS 106-89-8, EC 203-439-8, formula C3H5ClO) is a reactive chlorinated epoxide monomer, also known as Epichlorohydrine, Epoxychloropropane, and Chloromethyloxirane. It carries no assigned E-code and is classified under HS code 29103000.
In plastics and polymer manufacturing, Epichlorohydrin reacts with bisphenol A to form epoxy resin prepolymers, where its bifunctional structure enables controlled chain extension and crosslinking. In textile and paper processing, it acts as a wet-strength agent and biocide by covalently bonding to fiber substrates, improving durability and inhibiting microbial growth. It also serves as a reactive flame-retardant intermediate in polymer formulations.
Epichlorohydrin is supplied as a technical-grade liquid and is subject to REACH registration requirements within the EU. It is classified as a substance of very high concern (SVHC) and must be handled under applicable occupational exposure and transport regulations. Procurement teams should confirm SDS documentation and compliance status prior to ordering.
In plastics and polymer manufacturing, Epichlorohydrin reacts with bisphenol A to form epoxy resin prepolymers, where its bifunctional structure enables controlled chain extension and crosslinking. In textile and paper processing, it acts as a wet-strength agent and biocide by covalently bonding to fiber substrates, improving durability and inhibiting microbial growth. It also serves as a reactive flame-retardant intermediate in polymer formulations.
Epichlorohydrin is supplied as a technical-grade liquid and is subject to REACH registration requirements within the EU. It is classified as a substance of very high concern (SVHC) and must be handled under applicable occupational exposure and transport regulations. Procurement teams should confirm SDS documentation and compliance status prior to ordering.
Physical Properties
| Melting Point | -25.6 °C |
| Boiling Point | 117.9 °C |
| Density | 1.1750 g/cm³ @ Temp: 25 °C |
| Flash Point | 93 °F |
| Appearance | Epichlorohydrin is a colorless liquid with a slightly irritating, chloroform-like odor. |
| Color | APHA: ≤20 |
| Odor | Pungent, garlic; sweet, pungent; like chloroform. |
| Form | Liquid |
| Water Solubility | 6 g/100 mL (10 ºC) |
| Vapor Pressure | 13.8 mm Hg ( 21.1 °C) |
| Refractive Index | n 20/D 1.438(lit.) |
| Log P | 0.45 at 20℃ |
Safety & Handling (Learn More)
Danger GHS02 GHS05 GHS06 GHS08 GHS07
H
H226H301H311H314H317H318H330H331H334H335H340H341H350H360H361H370H372H402H412H301+H331H301+H311+H331
P
P203P210P233P240P241P242P243P260P261P262P264P270P271P272P273P280P284P316P317P318P319P320P321P330P363P403P405P501P264+P265P301+P316P302+P352P304+P340P308+P316P333+P317P342+P316P361+P364P362+P364P370+P378P403+P233P403+P235P301+P330+P331P302+P361+P354P303+P361+P353P305+P354+P338
Trade & Regulatory
| HS Code | 29103000 |
| UN Number | 2023 |
| ADR Class | 6.1 |
| Packing Group | II |
| Storage Class | 3 - Flammable liquids |
| WGK (Germany) | 3 |
Other Names
2-(chloromethyl)oxiraneEpoxychloropropane2-chloropropylene oxideECHEPICHLORHYDRINEPICHLOROHYDRINEα-EpichlorohydrinCHLOROMETHYLOXIRANEALPHA-EPICHLOROHYDRIN
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Raw Materials
Derivatives
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