p xylene molecular weight (CAS 106-42-3)
The molecular weight of p-xylene is 106.16 g/mol.
Para-xylene, also known as "1,4-dimethylbenzene," with the English name "Para-Xylene" or "1,4-Dimethyl Benzene," and abbreviated as "PX," is a fundamental organic petrochemical material.
What Is p-Xylene (PX)?
P-xylene (CAS 106-42-3) is an organic compound with the chemical formula C8H10. It is a colorless, transparent liquid with an aromatic odor. It is one of three isomers of xylene, the other two being o-xylene and m-xylene. At standard temperature, p-Xylene exists as a liquid with a boiling point of 138°C, a density of 0.861 g/cm³, and a flash point of 27.2°C. It is flammable and must be stored in a cool, well-ventilated warehouse, away from ignition sources and heat. Warehouse temperatures should not exceed 37°C.
P-xylene serves as a vital chemical feedstock, primarily used in the production of purified terephthalic acid (PTA) for manufacturing polyester fibers (e.g., polyester) and polyester plastics (e.g., PET). Additionally, it finds applications in solvents, coatings, dyes, pesticides, and pharmaceuticals. Due to its flammability and volatility, strict fire and explosion prevention measures must be observed during handling, alongside ensuring adequate ventilation.
Physical & Chemical Properties Of P-Xylene (PX)
| Property | Value |
|---|---|
| Chemical Name | p-Xylene |
| CAS Number | 106-42-3 |
| Molecular Formula | C₈H₁₀ |
| Appearance | Colorless liquid |
| Odor | Sweet aromatic |
| Flash Point | 25–28°C (closed cup) |
| Boiling Point | 137–138°C |
| Density | 0.86 g/cm³ |
| Solubility | Insoluble in water; soluble in organic solvents |
| Hazard Class | Flammable liquid |
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Related Chemical Products from Gneebio
Bulk Industrial buyers often purchase p xylene (CAS 106-42-3) together with other solvents and intermediates.
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| Cyclohexanone (CYC) | 108-94-1 |
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| Propionic Acid | 79-09-4 |
| Ethylene Glycol (Meg) | 107-21-1 |
| N, N-Dimethylacetamide (DMAC) | 127-19-5 |
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