1,2,4-Trimethylbenzene

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1,2,4-Trimethylbenzene
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IUPAC name 1,2,4-Trimethylbenzene
Other names Pseudocumene
,Asymmetrical trimethylbenzene,
psi-cumene
Identifiers
CAS number 95-63-6
SMILES CC1=C(C)C=CC(C)=C1
Properties
Molecular formula C9H12
Molar mass 120.19 g/mol
Density 0.8761 g/cm³
Melting point

-43.78 °C

Boiling point

169-171 °C

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

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.

References

  • Merck Index, 11th Edition, 7929.

External links


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