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Propylene

Not to be confused with propane or propyne.
For the unrelated compound sold as "Propolene", see glucomannan.
Propylene
Skeletal formula of propene
Skeletal formula of propene
Propylene
Propylene
Names
Preferred IUPAC name
Propene[1]
Identifiers
3D model (JSmol)
1696878
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.003.693 Edit this at Wikidata
EC Number
  • 204-062-1
852
KEGG
RTECS number
  • UC6740000
UNII
UN number 1077
In Liquefied petroleum gas: 1075
  • InChI=1S/C3H6/c1-3-2/h3H,1H2,2H3 checkY
    Key: QQONPFPTGQHPMA-UHFFFAOYSA-N checkY
  • InChI=1/C3H6/c1-3-2/h3H,1H2,2H3
    Key: QQONPFPTGQHPMA-UHFFFAOYAA
  • C=CC
  • CC=C
Properties
C3H6
Molar mass 42.081 g·mol−1
Appearance Colorless gas
Density 1.81 kg/m3, gas (1.013 bar, 15 °C)
1.745 kg/m3, gas (1.013 bar, 25 °C)
613.9 kg/m3, 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/m3
-31.5·10−6 cm3/mol
Viscosity 8.34 µPa·s at 16.7 °C
Structure
0.366 D (gas)
Hazards
GHS labelling:[2]
GHS02: FlammableGHS04: Compressed Gas
Danger
H220
P210, P377, P381, P403
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 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. propaneInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
1
4
1
Flash point −108 °C (−162 °F; 165 K)
Safety data sheet (SDS) External MSDS
Related 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).
checkY verify (what is checkY☒N ?)

Propylene, also known as propene, is an unsaturated organic compound with the chemical formula CH3CH=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.[3]

Propylene is a product of combustion from forest fires, cigarette smoke, and motor vehicle and aircraft exhaust.[4] It was discovered in 1850 by A. W. von Hoffman's student Captain (later Major General[5]) John Williams Reynolds as the only gaseous product of thermal decomposition of amyl alcohol to react with chlorine and bromine.[6]

  1. ^ "Front Matter". Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 31. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
  2. ^ "Propylene". pubchem.ncbi.nlm.nih.gov. Retrieved 14 December 2021.
  3. ^ "Propylene".
  4. ^ Morgott, David (2018-01-04). "The Human Exposure Potential from Propylene Releases to the Environment". International Journal of Environmental Research and Public Health. 15 (1): 66. doi:10.3390/ijerph15010066. ISSN 1660-4601. PMC 5800165. PMID 29300328.
  5. ^ "Maj Gen John Williams Reynolds, FCS". geni_family_tree. 1816-12-25. Retrieved 2023-12-30.
  6. ^ Rasmussen, Seth C. (2018), Rasmussen, Seth C. (ed.), "Introduction", Acetylene and Its Polymers: 150+ Years of History, SpringerBriefs in Molecular Science, Cham: Springer International Publishing, pp. 1–19, doi:10.1007/978-3-319-95489-9_1, ISBN 978-3-319-95489-9, retrieved 2023-12-30

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