Para-xylene (PX) is a core aromatic hydrocarbon and a primary feedstock for the polyester value chain. For industrial users, PX purity has a direct impact on reaction performance and product consistency. As a result, purity requirements vary by industry and are closely tied to downstream process sensitivity.
General Purity Range of Para-Xylene
In commercial supply, para-xylene is typically available in purity ranges from about 99.0% up to 99.9% or higher. Applications such as PTA and PET production require the highest-purity grades, while lower-purity PX may be suitable for use as a solvent or in certain chemical intermediate applications.
What is paraxylene (PX CAS:106-42-3)?
Paraxylene (PX CAS:106-42-3) is an important raw material for polyester fiber, mainly used in the production of polyester fibers and plastics. It has a simple chemical structure but wide applications, making it a key link in the modern chemical industry chain. The production process of PX is usually achieved through petroleum refining or coal chemical technology, serving as an important bridge connecting petroleum and everyday consumer goods.
Para-Xylene (PX, CAS 106-42-3) Purity Grades and Applications
| PX Grade / Industry | Typical Purity (wt%) | Main Applications |
|---|---|---|
| Polyester / PTA Grade | ≥ 99.7% | PTA production, PET resin, polyester fiber |
| PET Bottle Grade | ≥ 99.8–99.9% | Food-grade PET bottles, packaging |
| Industrial Chemical Grade | 99.0–99.5% | Chemical intermediates, solvents |
| Solvent / General Use Grade | ~99.0% | Solvent use, blending, laboratory use |
| Research / Analytical Grade | ≥ 99.9% | R&D, analytical reference material |
Paraxylene (PX CAS:106-42-3) specifications
| Item | Specification |
|---|---|
| Product Name | P-Xylene |
| Chemical Name | 1,4-Dimethylbenzene |
| CAS Number | 106-42-3 |
| Molecular Formula | C₈H₁₀ |
| Molecular Weight | 106.17 g/mol |
| Purity | ≥ 99% |
| Appearance | Clear, colorless liquid |
| Density (20°C) | ~0.86 g/cm³ |
| Boiling Point | ~138 °C |
| Melting Point | ~13.3 °C |
| Solubility | Insoluble in water; miscible with organic solvents |
para xylylene (PX CAS:106-42-3) MSDS
| MSDS Section | Key Information |
|---|---|
| Product Name | Para-Xylene (P-Xylene) |
| Synonyms | 1,4-Dimethylbenzene |
| CAS Number | 106-42-3 |
| Molecular Formula | C₈H₁₀ |
| Molecular Weight | 106.17 g/mol |
| Chemical Type | Aromatic Hydrocarbon |
| GHS Classification | Flammable Liquid, Category 3 |
| Signal Word | Warning |
| Hazard Statements | Flammable liquid and vapor; harmful if inhaled |
| Health Effects | May cause eye, skin, and respiratory irritation; dizziness at high concentrations |
| Environmental Impact | Harmful to aquatic life with long-lasting effects |
| Main Component | Para-Xylene ≥ 99% |
| First Aid – Inhalation | Move to fresh air; seek medical attention if symptoms persist |
| First Aid – Skin | Wash with soap and water |
| First Aid – Eyes | Rinse with water for several minutes |
| Fire-Fighting Media | Foam, dry chemical, CO₂ |
| Flash Point | Approx. 25 °C |
| Handling | Use with adequate ventilation; avoid ignition sources |
| Storage | Cool, dry, well-ventilated area; keep container tightly closed |
| Incompatible Materials | Strong oxidizing agents |
| Appearance | Colorless transparent liquid |
| Odor | Aromatic |
| Density | 0.861 g/cm³ (20 °C) |
| Boiling Point | 138.3 °C |
| Melting Point | 13.3 °C |
| Solubility | Insoluble in water; soluble in organic solvents |
| UN Number | UN 1307 |
| Transport Class | Class 3 (Flammable Liquids) |
| Packing Group | III |
| MSDS Availability | Available (PDF) |
| COA Availability | Provided per batch |
| Manufacturer | Gneebio (Multiple cooperative factories) |
Why Choose Gneebio for p-xylene (1,4-Dimethylbenzene CAS 106-42-3 )?
For companies looking to source p-xylene(PX) , Gneebio offers a reliable supply backed by over a decade of experience in chemical manufacturing and export. With strict quality control, competitive pricing, and flexible packaging options.
Our strict quality control and comprehensive certifications - including ISO9001, ISO14001, GMP, USP, and EP - ensure that every batch meets international standards.
Related Chemical Products from Gneebio
Bulk Industrial buyers often purchase p-xylene (CAS 106-42-3) together with other solvents and intermediates.
Here are the most popular products:
| Product Name | CAS |
|---|---|
| para xylene | 106-42-3 |
| Methyl Methacrylate (MMA) | 80-62-6 |
| 2-Methoxyethanol | 109-86-4 |
| Propionic Acid | 79-09-4 |
| Ethylene Glycol (Meg) | 107-21-1 |
| N, N-Dimethylacetamide (DMAC) | 127-19-5 |
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