1-butene

1-Butene (also known as Butene-1 or Ethylethylene) is an organic compound classified as an alkene with the chemical formula C4H8. It is one of the isomers of butene (butylene). 1-Butene is a colorless gas with a faintly sweet odor and is used in the production of various polymers and chemical intermediates.

Structure and Properties

1-Butene is a linear hydrocarbon with a double bond between the first and second carbon atoms in the chain. This double bond gives 1-butene its reactivity and makes it a valuable monomer in the production of polybutene and other copolymers. The presence of the double bond also means that 1-butene can participate in addition reactions typical of alkenes.

Production

1-Butene is typically produced through the cracking of petroleum and natural gas. It can also be obtained as a byproduct in the production of ethylene and propylene. The production process often involves the separation of 1-butene from other butenes and hydrocarbons using distillation techniques.

Applications

1-Butene is primarily used as a comonomer in the production of polyethylene, particularly linear low-density polyethylene (LLDPE). It is also used in the manufacture of polybutene, which is used in adhesives, sealants, and lubricants. Additionally, 1-butene serves as an intermediate in the synthesis of various chemical compounds, including butylene oxide and butanone.

Safety and Handling

1-Butene is a highly flammable gas and poses risks of fire and explosion. It should be handled with care, and appropriate safety measures should be in place to prevent accidental release and ignition. The gas can also act as an asphyxiant in high concentrations, displacing oxygen in the air.

Related Pages

• Alkene
• Butene
• Polyethylene
• Polybutene
• Cracking (chemistry)
• Petroleum