Bromobenzene

Bromobenzene is an aromatic halogenated compound with the molecular formula C6H5Br and CAS number 108-86-1. It consists of a benzene ring with one bromine atom substituted for a hydrogen atom. With a molecular weight of 157.01 g/mol, bromobenzene appears as a colorless to pale yellow liquid with a characteristic aromatic odor. It is classified as a flammable liquid and requires careful handling due to its skin irritation properties and potential environmental impact on aquatic organisms.

Bromobenzene is a colorless to pale yellow liquid at room temperature with a distinctive sweet, aromatic odor typical of substituted benzenes. It has a molecular weight of 157.01 g/mol and is practically insoluble in water but readily soluble in organic solvents such as ethanol, ether, and acetone. The compound has a boiling point around 156°C and a density higher than water. Its aromatic structure makes it stable under normal conditions but flammable when exposed to ignition sources.

Bromobenzene is primarily used as an intermediate in organic synthesis and pharmaceutical manufacturing. It serves as a starting material for producing various chemicals through nucleophilic substitution reactions, Grignard reactions, and coupling reactions. The compound finds applications in the synthesis of dyes, agrochemicals, and specialty chemicals. It is also used as a solvent in certain industrial processes and as a reagent in laboratory research for organic chemistry applications, particularly in aromatic substitution reactions.

Bromobenzene requires careful handling with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing to prevent skin contact. Work should be conducted in well-ventilated areas or under fume hoods to avoid inhalation of vapors. As a flammable liquid (Class 3), keep away from heat sources, sparks, and open flames. Avoid direct skin contact as it can cause irritation. Use non-sparking tools and ensure proper grounding when transferring the material to prevent static electricity buildup.

Bromobenzene should be stored in a cool, dry, well-ventilated area away from heat sources, ignition sources, and direct sunlight. Keep containers tightly closed and use appropriate chemical-resistant materials for storage vessels. Store separately from strong oxidizing agents, strong bases, and reactive metals due to potential incompatibilities. Maintain storage temperatures below 25°C when possible and ensure adequate fire protection systems are in place. Follow local regulations for flammable liquid storage and maintain proper inventory management to prevent prolonged storage.

In case of skin contact with bromobenzene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, rinse immediately with clean water for 15 minutes and seek medical attention. If inhaled, move the person to fresh air and keep them at rest. In case of ingestion, do not induce vomiting and seek immediate medical attention. For all exposure incidents, contact emergency services if symptoms persist or worsen.

Bromobenzene must be disposed of as hazardous waste according to local and national environmental regulations. Never pour it down drains, onto soil, or into waterways due to its classification as Aquatic Chronic 2. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Small quantities can often be recovered through distillation for reuse. Empty containers should be handled as hazardous waste unless properly cleaned. Always consult local environmental authorities for specific disposal requirements and approved disposal facilities in your area.

Bromobenzene is classified as ADR Class 3 (flammable liquids), Packing Group III for transportation purposes. It must be packaged in UN-approved containers with proper labeling including the flammable liquid hazard label and environmental hazard marking. Transport vehicles must comply with ADR regulations for Class 3 substances, including appropriate fire extinguishing equipment and driver certification. Ensure proper documentation including transport documents and emergency response information. Avoid transport during extreme temperatures and ensure containers are properly secured to prevent movement and damage during transit.

Bromobenzene is subject to various chemical regulations including REACH registration requirements in the European Union and CLP classification as Flam. Liq. 3, Skin Irrit. 2, and Aquatic Chronic 2. It is not currently listed as a Substance of Very High Concern (SVHC). Users must comply with workplace safety regulations, environmental discharge limits, and proper labeling requirements. Industrial users may need to implement risk management measures and safety data sheet provisions. Always check current regulatory status as chemical regulations may be updated periodically by authorities.

Bromobenzene is available through OYSI, a specialized European distributor of technical chemicals serving industrial and research customers across Europe. OYSI provides high-quality bromobenzene with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures proper packaging, labeling, and transportation according to ADR regulations. Contact OYSI directly for availability, technical specifications, and pricing information. They can provide guidance on regulatory requirements and safe handling practices for your specific application needs.