CAS 106-42-3 1,4-dimethylbenzene, also known as p-xylene, is an aromatic hydrocarbon compound with two methyl groups attached to a benzene ring in the para position. It is an important industrial chemical and a precursor for various organic compounds.
Basic Information
Chemical Formula: C₈H₁₀
Molecular Weight: 106.165 g/mol
Appearance: Colorless transparent liquid
Melting Point: 13.3 °C
Boiling Point: 138.4 °C
Density: 0.857 g/cm³
Solubility: Insoluble in water; miscible with most organic solvents such as ethanol, ether, chloroform, acetone and benzene.
Structure:
What is 1,4-dimethylbenzene (cas 106 42 3) used for?
Key Uses:
Polyester Production: Its primary use is as a precursor for PTA and dimethyl terephthalate (DMT), essential for PET bottles, films, and polyester fabrics.
Solvent: 1,4-dimethylbenzene (p-Xylene) is a common ingredient in paints, varnishes, lacquers, cleaning agents, and printing inks, dissolving various substances effectively.
Chemical Intermediate: p-Xylene serves as a starting material for manufacturing other organic compounds like benzoic acid, isophthalic acid, and intermediates for drugs and pesticides.
Other applications:
- 1,4-Dimethylbenzene is a component of aviation fuel, gasoline and rust preventatives.
- It is used in the rubber, leather and graphics industries.
- Paraxylene PX can be polymerised to create parylene, a specialised polymer.
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