1-Butene

But-1-ene is an alkene easily condensed to give a colorless liquid.

It is classified as a linear alpha-olefin (terminal alkene).

Polymerization of but-1-ene gives polybutylene, which is used to make piping for domestic plumbing.

[4] It has also been used as a precursor to polypropylene resins, butylene oxide, and butanone.

[5] But-1-ene is produced by separation from crude C4 refinery streams and by ethylene dimerization.

NFPA 704 four-colored diamond Health 1: Exposure would cause irritation but only minor residual injury. E.g. turpentine Flammability 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 Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code