My watch list
my.chemeurope.com  
Login  

Cumene



Cumene
IUPAC name (1-methylethyl)benzene
Other names isopropylbenzene
2-phenylpropane
Identifiers
CAS number 98-82-8
RTECS number GR8575000
SMILES CC(C)c1ccccc1
Properties
Molecular formula C9H12
Molar mass 120.19 g mol−1
Appearance colorless liquid
Density 0.862 g cm−3, liquid
Melting point

−96 °C (117 K)

Boiling point

152 °C (425 K)

Solubility in water insoluble
Viscosity 0.777 cP at 21 °C
Hazards
Main hazards flammable
R-phrases R10,R37,R51/53,R65
S-phrases S24,S37,S61,S62
Flash point 102 °C
Related Compounds
Related compounds ethylbenzene
toluene
benzene
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Cumene is the common name for isopropylbenzene, an organic compound that is an aromatic hydrocarbon. It is a constituent of crude oil and refined fuels. It is a flammable colorless liquid that has a boiling point of 152 °C. Nearly all the cumene that is produced as a pure compound on an industrial scale is converted to cumene hydroperoxide, which is an intermediate in the synthesis of other industrially important chemicals such as phenol and acetone.

Additional recommended knowledge

Production

Commercial production of cumene is carried out through the catalytic alkylation of benzene, with the addition of propylene. Solid phosphoric acid (SPA) supported on alumina can also be used as a catalyst, and this was the case prior to the mid-1990s when zeolite-based catalysts made the other technique commercially redundant. [1]

See also

References

  1. ^ The Innovation Group website, page accessed 15/11/07
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Cumene". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE