CAS Number:106‑89‑8
Synonyms:Epichlorohydrin; 1‑Chloro‑2,3‑epoxypropane; Chloromethyloxirane; ECH
Chemical Formula:C₃H₅ClO
Molecular Weight:92.52 g/mol
Product Introduction
A colorless, highly reactive epoxide liquid with a pungent, chloroform‑ or garlic‑like odor. Used as a precursor for epoxy resins, glycerol, polymeric surfactants, and found in biotechnological crosslinking applications. Classified as a probable human carcinogen.
| Property | Value |
|---|---|
| Appearance | Colorless liquid; density ~1.181 g/mL @ 20 °C |
| Odor | Garlic or chloroform‑like pungent aroma |
| Melting Point | –25.6 °C |
| Boiling Point | ~117.9 °C |
| Vapor Pressure @ 20 °C | ~13 mm Hg |
| Vapor Density | ~3.2 × air |
| Refractive Index (n₂₀ᴅ) | ~1.438 |
| Flash Point | ~31–32 °C |
| Solubility in Water | ~7 g/100 mL @ 20 °C |
| Explosive Range | 3.8–21 % in air |
| Carcinogenicity | IARC Group 2A; probable human carcinogen |
| TLV‑TWA (ACGIH) | 5 ppm (19 mg/m³) with skin notation |
| LD₅₀ (oral, rat) | ~90 mg/kg |
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