1,3-Butadiene - C4h6
1,3-Butadiene has the chemical formula C4H6 and the structural formula H2C=CH-CH=CH2. It is an important industrial chemical used as a monomer in the production of synthetic rubber. It is also used in mixtures to calibrate analysers for the petrochemical analysis.
Its major hazards are fire and reactivity.
Properties
Molecular weight 54.09 g/mol
Gaseous phase Gas density (1.013 bar at boiling point): 2.55 kg/m3
Gas density (1.013 bar and 15 °C (59 °F)): 2.36 kg/m3
Solid phase Melting point: -108.9 °C
Liquid phase Boiling point (1.013 bar): -4.5 °C
Liquid density (1.013 bar at boiling point): 650 kg/m3
Critical point Critical temperature: 152 °C
Critical pressure: 43.22 bar