but-1-ene

C₄H₈
100%
Structural formula of but-1-ene

but-1-ene, but-1-ene, 1-butene, 1-butylene, ethylethylene, α-butylene

But-1-ene is a colorless gas and one of the isomers of butene.

H220H221H280P210P377P381P403P410+P403
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Physical characteristics

Molecular mass 56.1
Density 620 g/m³
Melting point -185 ℃-302 ℉87.8 K 
Boiling point -6.47 ℃20.4 ℉267 K 
Flash point -79.1 ℃-110 ℉194 K 
Fire point 385 ℃725 ℉658 K 
Partition coeff. (logP) 2.4
Solubility (water)0.0394 mol/L2.21 g/L 
Solubility (benzene)Soluble
Solubility (ethoxyethane)Soluble
Solubility (ethanol)Soluble

Synthesis of but-1-ene


Compound added to the database on November 6, 2020, last modified on August 11, 2022.