Styrene

Styrene is an aromatic hydrocarbon with the molecular formula C8H8 and CAS number 100-42-5. This organic compound has a molecular weight of 104.15 g/mol and appears as a colorless to slightly yellow liquid with a sweet, floral odor. Styrene is classified as a hazardous substance with multiple danger classifications including flammable liquid, reproductive toxicant, and potential carcinogen. It is widely used in the chemical industry as a monomer for polymer production.

Styrene is a colorless to slightly yellow liquid at room temperature with a characteristic sweet, penetrating odor. It has a molecular weight of 104.15 g/mol and is practically insoluble in water but miscible with most organic solvents. The substance has a boiling point of approximately 145°C and a flash point around 31°C. Styrene tends to polymerize readily, especially when exposed to heat, light, or peroxides, which is why it typically contains stabilizers.

Styrene is primarily used as a monomer in the production of polystyrene plastics, synthetic rubber, and resins. It serves as a key raw material for manufacturing expanded polystyrene (EPS), high-impact polystyrene, and styrene-butadiene rubber. The compound is also utilized in the production of polyester resins, styrene-acrylonitrile copolymers, and as a chemical intermediate in various industrial processes. Additionally, it finds applications in the manufacture of synthetic latex and specialty chemicals.

Styrene must be handled with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection when adequate ventilation is not available. Work should be conducted in well-ventilated areas or under fume hoods due to its volatile nature and potential health effects. Avoid skin and eye contact, and prevent inhalation of vapors. Keep away from heat sources, sparks, and open flames as styrene is flammable. Always follow proper industrial hygiene practices when working with this substance.

Styrene should be stored in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and ignition sources. The storage temperature should be kept below 25°C to prevent polymerization. Use appropriate containers made of compatible materials and ensure they are tightly sealed. Store away from oxidizing agents, peroxides, and strong acids. Regular monitoring for signs of polymerization and proper inventory rotation following first-in-first-out principles are essential for safe storage.

In case of skin contact with styrene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with plenty of clean water for at least 15 minutes and seek medical attention. If inhaled, move the person to fresh air immediately and provide oxygen if breathing is difficult. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician in any exposure case.

Styrene must be disposed of as hazardous waste in accordance with local, national, and EU regulations. The substance cannot be discharged into drains, water courses, or onto the ground. Disposal should only be carried out by licensed waste management companies specialized in hazardous chemical waste. Small quantities should be collected in appropriate containers and labeled clearly. Always consult local environmental authorities for specific disposal requirements and approved waste treatment facilities in your area.

Styrene is classified under ADR as Class 3 (flammable liquid), Packing Group III, requiring specific transport regulations compliance. The substance must be transported in UN-approved packaging with proper labeling including GHS pictograms GHS02, GHS07, and GHS08. Transport vehicles must carry appropriate emergency equipment and documentation. Drivers require ADR certification for dangerous goods transport. The shipment must be accompanied by safety data sheets and emergency response information. Professional logistics companies experienced in chemical transport should handle the shipment.

Styrene is subject to extensive EU regulations including REACH registration requirements and CLP classification as Flam. Liq. 3, Repr. 2, Acute Tox. 4, STOT RE 1, Skin Irrit. 2, and Eye Irrit. 2. While not currently listed as a Substance of Very High Concern (SVHC), it requires safety data sheets and appropriate risk management measures. The substance is also regulated under various national occupational exposure limits and environmental protection laws. Industrial users must comply with worker protection and emission control requirements.

Styrene is available through OYSI, a professional European distributor of technical chemicals serving industrial customers across Europe. As an established chemical supplier, OYSI provides styrene with proper documentation, safety data sheets, and regulatory compliance support. The company offers reliable supply chains and technical expertise for industrial applications. For purchasing inquiries, pricing, and availability information, customers can contact OYSI directly through their European distribution network to discuss specific requirements and delivery options.