ImageFileL1 = Propylene skeletal.svg
ImageSizeL1 = 100px
ImageNameL1 = Skeletal formula of propene
ImageFileR1 = Propylene.png
ImageSizeR1 = 120px
ImageNameR1 = Propylene
IUPACName = Propene
Section1 = Chembox Identifiers
SMILES = C=CC
CASNo = 115-07-1
UNNumber = 1077 "In
Liquefied petroleum gas: "1075
RTECS = UC6740000
Section2 = Chembox Properties
Formula = C3H6
MolarMass = 42.08 g/mol
Appearance = colorless gas
Solubility = 0.61 g/m3 (? °C)
MeltingPt = − 185.2 °C (88.0 K)
BoilingPt = − 47.6 °C (225.5 K)
Viscosity = 8.34 µPa·s at 16.7 °C
Section3 = Chembox Structure
Dipole = 0.366 D (gas)
Section7 = Chembox Hazards
ExternalMSDS = External MSDS
MainHazards = Highly flammable,
NFPA-H = 1
NFPA-F = 4
NFPA-R = 1
FlashPt = −108 °C
RPhrases = 12
SPhrases = 9-16-33
Section8 = Chembox Related
Ethylene Isomers of Butylene
Propane, Propyne Allene, 1-Propanol
Function = groups
Propene, also known as propylene, is an unsaturated organic compound having the
chemical formulaC3H6. It has one double bond, and is the second simplest member of the alkeneclass of hydrocarbons, and it is also second in natural abundance.
temperature, propene is a colourless, odourless gas, though when used as a fuel, it is mixed with minute quantities of foul-smelling sulfurous compounds ( mercaptans) so that gas leaks can be readily detected.
Propene has a higher density and boiling point than
ethylenedue its greater size. It has a slightly lower boiling point than propane and is thus more volatile. It lacks strongly polar bonds, yet the molecule has a small dipole momentdue to its reduced symmetry (its point groupis Cs).
Propene has the same formula as
cyclopropanebut a different connectivity of atoms, making these molecules structural isomers.
All propene is obtained from
non-renewablesources; petroleumor natural gasdeposits (and coal to a lesser extent). It is a fossil fuel. Propene is extracted from these by fractional distillation during oil refining, but demand exceeds supply so most is manufactured by cracking. The products from this process contain a mixture of products and the propene is separated from the other products by fractional distillation.
Production and Uses
Propene is the raw material for the production of
polypropylene, a versatile polymerwidely used in several different grades for packaging. Most propene is polymerized using Ziegler-Natta catalysis, which produces isotactic polypropylene. Along with benzene, propene is a key feedstock in the cumene process, a reaction carried out on industrial scales to produce acetoneand phenol. Propene is also used during the production of many other chemical products such as isopropanol(propan-2-ol), acrylonitrile, and propylene oxide(epoxypropane). [Citation | contribution = 8034. Propylene | year = 1996 | title = The Merck Index, Twelfth Edition | editor-last = Budavari | editor-first = Susan | volume = | pages = 1348-1349 | place = New Jersey | publisher = Merck & Co. | id = ]
The production of propene has remained static at around 35 million
tonnes(Europe and North America only) from 2000 – 2008 but has been increasing in East Asia, most notably Singapore and China. [www. petrochemistry.net Accessed August 2008] [Organic Chemistry 6th edition, McMurry,J., Brooks/Cole Publishing, Pacific Grove USA (2005)] Total world production of propene is currently about half that of ethylene.
Wikimedia Foundation. 2010.