Epichlorohydrin
CAS Number
106-89-8
EC Number
203-439-8
Abbreviation
ECH
What is Epichlorohydrin?
Epichlorohydrin (CAS 106-89-8), commonly abbreviated as ECH, is a reactive chlorinated epoxide monomer; a foundational building block in polymer synthesis.
Where is Epichlorohydrin used?
- Epoxy resins: reacts with bisphenol A to produce base resins for coatings, adhesives and structural composites
- Textile and paper: polyamide-epichlorohydrin resins as wet-strength agents and dye fixatives
- Flame retardants: reactive intermediate introducing chlorine into polymer backbones
- Crosslinking agent in glycerol, synthetic glycerin and ion-exchange water treatment resins
- Its bifunctional reactivity, combining an epoxide ring with a reactive chlorine, makes it indispensable for crosslinked resins and specialty polymers.
Commercial specifications
- Technical grade, purity typically 99% or above
- Colorless liquid in ISO tank containers, drums and intermediate bulk containers
- Procurement from drum quantities to full bulk shipments
Other Names (Synonyms)
gamma-chloropropylene oxide|2-chloropropylene oxide|2-(chloromethyl)oxirane|(RS)-3-Chloro-1,2-epoxypropane|1-chloro-2,3-epoxypropane|Glycidyl chloride|Oxirane, (chloromethyl)-|Chloropropylene oxide|ECH
What are the physical properties of Epichlorohydrin?
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℃
How is Epichlorohydrin classified and handled safely? Learn More
Danger
GHS02· Flammable GHS05· Corrosive GHS06· Toxic GHS08· Health Hazard GHS07· Irritant
Hazard Statements
H226 Flammable liquid and vapor
H301 Toxic if swallowed
H311 Toxic in contact with skin
H314 Causes severe skin burns and eye damage
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
Which trade and regulatory codes apply to Epichlorohydrin?
HS Code 29103000
UN Number 2023
ADR Class 6.1
Packing Group II
Storage Class 3 - Flammable liquids
WGK (Germany) 3