2-Butene oxide
- CAS NO.：3266-23-7
- Empirical Formula: C4H8O
- Molecular Weight: 72.11
- MDL number: MFCD00066345
- EINECS: 221-877-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:13:56
What is 2-Butene oxide?
General Description
Clear colorless liquid.
Air & Water Reactions
Highly flammable. Water soluble. May be sensitive to moisture.
Reactivity Profile
Epoxides, such as 2-Butene oxide, are highly reactive. They polymerize in the presence of catalysts or when heated. These polymerization reactions can be violent. Compounds in this group react with acids, bases, and oxidizing and reducing agents. They react, possibly violently with water in the presence of acid and other catalysts.
Fire Hazard
2-Butene oxide is flammable.
Flammability and Explosibility
Highly flammable
Properties of 2-Butene oxide
| Boiling point: | 56~57℃ |
| Density | 0.804 g/mL at 20 °C(lit.) |
| refractive index | 1.3740-1.3810 |
| Flash point: | -15°C |
| Specific Gravity | 0.810 |
| CAS DataBase Reference | 3266-23-7(CAS DataBase Reference) |
| NIST Chemistry Reference | Oxirane, 2,3-dimethyl-(3266-23-7) |
| EPA Substance Registry System | 2,3-Epoxybutane (3266-23-7) |
Safety information for 2-Butene oxide
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H225:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for 2-Butene oxide
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