1,4-xylene

1,4-xylene is an aromatic hydrocarbon compound with the molecular formula C8H10 and CAS number 106-42-3. It belongs to the xylene family, which consists of three isomeric forms of dimethylbenzene. Also known as para-xylene, this colorless liquid has a molecular weight of 106.16 g/mol and is characterized by its distinctive sweet aromatic odor typical of benzene derivatives.

1,4-xylene is a colorless liquid at room temperature with a characteristic sweet, aromatic odor. It has a boiling point of approximately 138°C and a melting point of 13°C. The compound is practically insoluble in water but readily soluble in organic solvents such as ethanol, ether, and acetone. It has a density lower than water and exhibits flammable properties.

1,4-xylene serves primarily as a feedstock in the petrochemical industry for the production of terephthalic acid and dimethyl terephthalate, which are essential precursors for polyester resins, fibers, and PET plastics. It is also used as a solvent in various industrial applications, including paints, coatings, adhesives, and rubber processing. Additionally, it finds use in the production of certain pharmaceuticals and agrochemicals.

1,4-xylene requires careful handling due to its flammable nature and potential health hazards. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and appropriate respiratory protection when ventilation is inadequate. Work should be conducted in well-ventilated areas away from ignition sources. Avoid skin and eye contact, and prevent inhalation of vapors. Ground all equipment to prevent static electricity buildup.

1,4-xylene must be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames. Use appropriate containers made of compatible materials and ensure they are tightly sealed to prevent vapor escape. Storage areas should be equipped with fire suppression systems and spill containment measures. Keep away from oxidizing agents and incompatible materials that could cause dangerous reactions.

Immediate action is required upon contact with 1,4-xylene. For skin contact, remove contaminated clothing and wash the affected area thoroughly with soap and water. In case of eye contact, rinse immediately with plenty of clean water for at least 15 minutes. If inhaled, move the person to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention in all cases.

1,4-xylene disposal must comply with local, national, and international waste regulations. The substance cannot be disposed of in regular waste streams due to its hazardous classification. It should be collected by licensed waste management companies specializing in hazardous chemical disposal. Incineration at appropriate high-temperature facilities or recovery through distillation are common disposal methods. Empty containers may also require special handling.

1,4-xylene is classified under ADR as Class 3 (flammable liquids), Packing Group III. Transportation must comply with dangerous goods regulations, requiring appropriate packaging, labeling, and documentation. Vehicles must be equipped with proper safety equipment and drivers need hazardous materials training. The substance requires UN specification packaging and proper placarding during transport. Emergency response information must accompany shipments.

1,4-xylene is subject to various European regulations including REACH registration requirements and CLP classification as Flam. Liq. 3 and Acute Tox. 4. It carries Warning signal word and requires GHS02 and GHS07 pictograms on labels. The substance is not currently listed as an SVHC (Substance of Very High Concern). Users must comply with workplace exposure limits and safety data sheet requirements.

1,4-xylene is available through OYSI, a European distributor of technical chemicals serving various industries across the continent. OYSI provides quality chemical products with proper documentation, safety data sheets, and regulatory compliance support. As a specialized chemical distributor, OYSI ensures reliable supply chains and technical support for industrial customers requiring 1,4-xylene for their manufacturing processes and applications.