Freezing Point and Physical Properties of Paraxylene (CAS 106-42-3)
Paraxylene has the chemical formula C₈H₁₀. It has a freezing point of 56 °F, a density of 0.857 g/cm³ at 25 °C, and a boiling point of 138.4 °C. PX belongs to the class of aromatic hydrocarbons.
At room temperature, it is a colorless, transparent liquid with a pungent odor and is highly flammable. Prolonged inhalation of paraxylene may affect the central nervous system or hearing. PX is insoluble in water but miscible with most organic solvents, including ethanol, diethyl ether, and chloroform.
What Is Paraxylene (PX) and What Is It Used For? (CAS 106-42-3)
Paraxylene (PX), an organic compound with the chemical formula C8H10, is one of the important aromatic hydrocarbons. At room temperature, it is a colorless, transparent liquid with an aromatic odor. It is insoluble in water but miscible with ethanol, diethyl ether, chloroform, and most organic solvents. 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.
p-xylene Uses
- The primary application of p-xylene is as a feedstock for producing purified terephthalic acid (PTA). PTA serves as a key intermediate in manufacturing polyethylene terephthalate (PET), which finds extensive use in fibers, films, plastic bottles, and other products.
- Paraxylene is also employed in producing other chemical products like benzoic acid and p-toluenaldehyde, which have significant applications in pharmaceuticals, pesticides, coatings, and other fields. For instance, benzoic acid serves as a raw material for manufacturing preservatives, widely used in the food and pharmaceutical industries. P-Toluenaldehyde functions as an intermediate in the production of pesticides and dyes.
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As a paraxylene (CAS:106-42-3) manufacturer, Gneebio focuses on product consistency, industrial applicability, and bulk supply reliability. The company operates under strict quality management systems to ensure that paraxylene meets the requirements of large-scale and continuous production environments.
Key manufacturing and supply strengths include:
- Controlled purity grades suitable for industrial and synthetic applications
- Stable batch-to-batch quality for long-term procurement
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- Export-ready packaging and documentation (COA, SDS, etc.)
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