Agent Name

3,4-Epoxy-1-butene

CAS Number

930-22-3

Formula

C4-H6-O

Major Category

Plastics & Rubber

Synonyms

1,2-Epoxybutene; 1,2-Epoxybutene-3; 1,2-Oxido-3-butene; 1,3-Butadiene oxide; 1-Butene, 3,4-epoxy-; 3,4-Epoxybutene; Butadiene epoxide; Butadiene monoepoxide; Butadiene monooxide; Butadiene monoxide; Butadiene oxide; Epoxybutene; Ethenyloxirane; Monoepoxybutadiene; Monoepoxybutene; Oxirane, ethenyl-; Vinylethylene oxide; Vinyloxirane; 1,2-Epoxy-3-butene; 3,4-Epoxybut-1-ene; Oxirane, 2-ethenyl-; [ChemIDplus] UN1993

Category

Other Monomers

Description

Light yellow liquid; [CAMEO] Colorless liquid; [MSDSonline]

Sources/Uses

Used as a comonomer with propylene oxide for polyethers and a reactive diluent for epoxy resins; [HSDB]

Comments

Intraperitoneal LD50 (rat) = 168 mg/kg; [HSDB] An irritant; [MSDSonline]

Exposure Assessment
Vapor Pressure

154 mm Hg

Explanatory Notes

Flash point < -50 deg C; [HSDB] The Guide in the Emergency Response Guidebook is for "Flammable liquid, n.o.s."

Flammability (NFPA)

3: May ignite at ambient temperature

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Processes

Industrial Processes with risk of exposure: