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Topic summary

Propylene

Names Preferred IUPAC name
Propene
Identifiers
3D model (JSmol)
1696878 ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.003.693EC Number
  • 204-062-1
852 KEGG
RTECS number
  • UC6740000
UNII
UN number1077
In Liquefied petroleum gas: 1075
  • InChI=1S/C3H6/c1-3-2/h3H,1H2,2H3
    Key: QQONPFPTGQHPMA-UHFFFAOYSA-N
  • InChI=1/C3H6/c1-3-2/h3H,1H2,2H3
    Key: QQONPFPTGQHPMA-UHFFFAOYAA
  • C=CC
  • CC=C
Properties C3H6Molar mass42.081 g·mol Appearance Colorless gas Density1.81 kg/m, gas (1.013 bar, 15 °C)
1.745 kg/m, gas (1.013 bar, 25 °C)
613.9 kg/m, liquid Melting point−185.2 °C (−301.4 °F; 88.0 K) Boiling point−47.6 °C (−53.7 °F; 225.6 K) 0.61 g/m −31.5·10 cm/mol Viscosity8.34 µPa·s at 16.7 °C Structure 0.366 D (gas) Hazards GHS labelling: DangerH220P210, P377, P381, P403NFPA 704 (fire diamond)
1
4
1
Flash point−108 °C (−162 °F; 165 K) Safety data sheet (SDS) External MSDSRelated compounds
Related alkenes;
related groups
Ethylene, Isomers of Butylene;
Allyl, Propenyl
Related compounds
Propane, Propyne
Propadiene, 1-Propanol
2-Propanol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Propylene, also known as propene, is an unsaturated organic compound with the chemical formulaCH3CH=CH2. It has one double bond, and is the second simplest member of the alkene class of hydrocarbons. It is a colorless gas with a faint petroleum-like odor.

Propylene is a product of combustion from forest fires, cigarette smoke, and motor vehicle and aircraft exhaust. It was discovered in 1850 by A. W. von Hoffmann's student John Williams Reynolds as the only gaseous product of thermal decomposition of amyl alcohol to react with chlorine and bromine.

Wikipedia source