1,2,4-Trimethylbenzene

Chembox new
Name = 1,2,4-Trimethylbenzene
ImageFileL1 = 1,2,4-Trimethylbenzene.svg
ImageSizeL1 = 100px
ImageFileR1 = 1,2,4-Trimethylbenzene.png ImageSizeR1 = 140px
ImageName = 1,2,4-Trimethylbenzene
IUPACName = 1,2,4-Trimethylbenzene
OtherNames = Pseudocumene,
Asymmetrical trimethylbenzene,
psi-cumene
Section1 = Chembox Identifiers
CASNo = 95-63-6
SMILES = CC1=C(C)C=CC(C)=C1
Section2 = Chembox Properties
Formula = C₉H₁₂
MolarMass = 120.19 g/mol
Density = 0.8761 g/cm³
MeltingPt = -43.78 °C
BoilingPt = 169-171 °C
Section3 = Chembox Hazards
EUClass = Harmful (Xn); Dangerous for the environment (N)
ExternalMSDS = [http://ptcl.chem.ox.ac.uk/MSDS/TR/1,2,4-trimethylbenzene.html Oxford MSDS]

1,2,4-Trimethylbenzene is a colorless liquid with chemical formula C₉H₁₂. It is flammable aromatic hydrocarbon with a strong odor. It occurs naturally in coal tar and petroleum (about 3%). It is nearly insoluble in water, but well soluble in ethanol, diethyl ether, and benzene.

Industrially it is isolated from the C9 aromatic hydrocarbon fraction during petroleum distillation. Approximately 40% of this fraction is 1,2,4-Trimethylbenzene.

Uses

1,2,4-Trimethylbenzene dissolved in mineral oil is used as a liquid scintillator. It is also used as a sterilizing agent and in the manufacture of dyes, perfumes, and resins. Another major use is as a gasoline additive. [cite web
accessdate=2008-01-28
format=text
publisher=EPA
date=1994-08-01
url=http://www.epa.gov/chemfact/s_trimet.txt
title=Chemical Summary for 1,2,4-Trimethylbenzene]

References

*"Merck Index", 11th Edition, 7929.

External links

* [http://www.epa.gov/chemfact/s_trimet.txt EPA Chemical Fact Sheet]