p xylene structure (CAS 106-42-3)
p-xylene is an aromatic hydrocarbon based on benzene with two methyl substituents with the chemical formula C8H10 or C6H4(CH3)2. It is one of the three isomers of dimethylbenzene known collectively as xylenes.
Comparison of Xylene Isomers (Structure vs. Application)
| Isomer | Structure Position | Most Common Use |
|---|---|---|
| o-Xylene | 1,2-dimethylbenzene | Phthalic anhydride |
| m-Xylene | 1,3-dimethylbenzene | Solvents, resins |
| p-Xylene | 1,4-dimethylbenzene | PTA, PET, Polyester |
What Is p-Xylene (PX)?
Paraxylene (PX) is an organic compound with the chemical formula C8H10. As one of the key aromatic hydrocarbons, it exists as a colorless, transparent liquid with an aromatic odor at room temperature. It is insoluble in water but miscible with ethanol, diethyl ether, chloroform, and most organic solvents.
p-Xylene (PX) Uses
It is primarily used as a raw material for producing polyester fibers, resins, coatings, dyes, and pesticides. Additionally, it serves as a standard substance and solvent for chromatographic analysis and is employed in organic synthesis.
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