1-Butene

1-butene.svg
But-1-ene-2D-skeletal.png
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Names
IUPAC name

but-1-ene
Other names

ethylethylene, 1-butylene, α-butylene, but-1-ene
Identifiers
CAS Registry Number
106-98-9 Yes
ChEBI CHEBI:48362 Yes
ChEMBL ChEMBL117210 Yes
ChemSpider 7556 Yes
Jmol-3D images Image
Image
PubChem 7844
UNII LY001N554L Yes
Properties
Chemical formula
C4H8
Molar mass 56.11 g·mol−1
Appearance Colorless Gas
Odor slightly aromatic
Density 0.62 g/cm3
Melting point −185.3 °C (−301.5 °F; 87.8 K)
Boiling point −6.47 °C (20.35 °F; 266.68 K)
Solubility in water
0.221 g/100 mL
Solubility soluble in alcohol, ether,benzene
Refractive index(nD)
1.3962
Viscosity 7.76 Pa
Hazards
NFPA 704
Flammability code 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g., propane Health code 1: Exposure would cause irritation but only minor residual injury. E.g., turpentine Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no code

NFPA 704 four-colored diamond

4
1
0
Autoignition
temperature
385 °C (725 °F; 658 K)
Explosive limits 1.6-10%