Propylbenzene

Propylbenzene is an aromatic hydrocarbon with the molecular formula C9H12 and CAS number 103-65-1. It consists of a benzene ring attached to a propyl group, with a molecular weight of 120.19 g/mol. This flammable liquid belongs to the alkylbenzene family and is classified as a hazardous substance under CLP regulation due to its flammability, aspiration toxicity, and potential environmental impact.

Propylbenzene is a colorless to pale yellow liquid at room temperature with a characteristic aromatic odor. It has low water solubility but is miscible with most organic solvents including alcohols, ethers, and hydrocarbons. The compound exhibits typical aromatic properties with moderate volatility and is lighter than water. Its physicochemical properties make it suitable for use as a solvent and chemical intermediate in various industrial applications.

Propylbenzene is primarily used as a chemical intermediate in the production of other aromatic compounds and as an industrial solvent. It serves in the manufacture of surfactants, resins, and specialty chemicals. The compound is also utilized in the production of styrene derivatives and as a component in certain formulations requiring aromatic solvents. Its applications span across chemical manufacturing, pharmaceutical intermediates, and specialized industrial processes.

Propylbenzene requires careful handling due to its flammable nature and health hazards. Use appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection in poorly ventilated areas. Work in well-ventilated spaces away from ignition sources, as the substance can form explosive vapor-air mixtures. Avoid skin contact and inhalation, and ensure proper grounding of equipment to prevent static electricity buildup during transfer operations.

Propylbenzene must be stored in cool, dry, well-ventilated areas away from heat sources, sparks, and open flames. Use appropriate containers made of compatible materials and ensure proper labeling according to CLP regulations. Keep away from oxidizing agents and strong acids to prevent incompatible reactions. Storage areas should be equipped with fire suppression systems and spill containment measures, with temperatures maintained below the substance's flash point.

Propylbenzene exposure requires immediate first aid measures. For skin contact, remove contaminated clothing and wash thoroughly with soap and water. In case of eye contact, flush immediately with clean water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air and monitor breathing. Never induce vomiting if swallowed due to aspiration hazard - seek immediate medical attention and provide the safety data sheet to healthcare professionals.

Propylbenzene disposal must comply with local and European waste regulations as hazardous waste. The substance cannot be disposed of down drains or with regular waste due to its environmental classification. Contact licensed waste disposal companies for proper treatment, which typically involves incineration at appropriate facilities. Small quantities should be collected and stored in original or compatible containers until professional disposal, ensuring proper labeling and documentation throughout the process.

Propylbenzene is classified as ADR Class 3 (flammable liquids), Packing Group III for transport purposes. Packages must bear appropriate hazard labels and markings according to ADR regulations. Use UN-approved packaging suitable for flammable liquids and ensure proper documentation including transport documents. Vehicles must comply with ADR requirements for Class 3 substances, including appropriate equipment and driver certification for hazardous goods transport.

Propylbenzene is regulated under European CLP and REACH regulations due to its hazardous classification. It requires safety data sheets and appropriate labeling with danger pictograms GHS02, GHS07, GHS08, and GHS09. The substance is not currently listed as SVHC under REACH but must comply with standard registration requirements. Users must implement appropriate risk management measures and ensure compliance with occupational exposure limits and environmental protection requirements.

Propylbenzene is available through OYSI, a specialized European distributor of industrial chemicals. As an established chemical supplier, OYSI can provide propylbenzene with proper documentation, safety data sheets, and regulatory compliance support. Contact OYSI directly to discuss specific requirements, quantities, and delivery options across European markets. Professional chemical distributors ensure product quality, proper packaging, and adherence to transportation and safety regulations for hazardous substances.