N-phenylaniline

N-phenylaniline is an organic chemical compound with the molecular formula C12H11N and CAS number 122-39-4. It belongs to the family of aromatic amines, featuring two benzene rings connected through a nitrogen atom. With a molecular weight of 169.22 g/mol, this substance is classified as hazardous due to its acute toxicity and potential for specific target organ toxicity. It also poses environmental risks to aquatic life.

N-phenylaniline is typically a solid crystalline substance at room temperature with a characteristic aromatic amine odor. It appears as white to light yellow crystals or powder that may darken upon exposure to air and light. The compound has limited solubility in water but dissolves well in organic solvents such as ethanol, benzene, and ether. Its aromatic structure contributes to its stability and specific chemical reactivity patterns.

N-phenylaniline is primarily used as an intermediate in the production of dyes, pigments, and pharmaceuticals. It serves as a key building block in the synthesis of various organic compounds, particularly in the manufacture of antioxidants for rubber and plastics. The compound is also utilized in the production of certain pesticides and as a stabilizer in polymer chemistry. Its applications are mainly restricted to industrial and professional use due to safety considerations.

N-phenylaniline requires careful handling with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid skin and eye contact, and ensure no ingestion occurs. Personnel should be trained in proper handling procedures and emergency response. Regular health monitoring may be necessary for workers with potential exposure to this substance.

N-phenylaniline should be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly closed and store separately from strong oxidizing agents, acids, and food products. The storage area should be equipped with appropriate spill containment measures and emergency equipment. Maintain temperatures below 25°C when possible and ensure proper labeling according to GHS requirements. Regular inspection of containers is recommended.

Immediate action is required for any contact with N-phenylaniline. For skin contact, remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes. If inhaled, move the person to fresh air and monitor breathing. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician after any significant exposure.

N-phenylaniline disposal must comply with local, national, and EU waste regulations as it is classified as hazardous waste. The substance should never be discharged to sewers, waterways, or soil due to its aquatic toxicity. Disposal should be arranged through licensed hazardous waste contractors who can ensure proper treatment, typically involving high-temperature incineration. Contaminated packaging and materials also require hazardous waste disposal. Always consult local environmental authorities for specific disposal requirements.

N-phenylaniline is classified under ADR Class 6.1 (toxic substances), Packing Group III for transportation. It must be packaged in UN-approved containers with proper hazard labels and documentation. Transport vehicles must carry appropriate emergency equipment and personnel should be trained in hazardous goods handling. The substance requires toxic substance placarding during transport and must be accompanied by proper shipping papers and emergency response information.

N-phenylaniline is subject to multiple European regulations including REACH registration requirements and CLP classification obligations. As a toxic substance, it falls under various occupational health and safety directives requiring risk assessments and exposure monitoring. The compound is also regulated under environmental legislation due to its aquatic toxicity. While not currently listed as a SVHC, its hazard classification means it may be subject to authorization or restriction procedures in the future.

N-phenylaniline is available through OYSI, a specialized European distributor of technical chemicals serving industrial and professional customers across Europe. OYSI provides this substance with full regulatory compliance, proper documentation, and technical support. As a restricted chemical due to its hazard classification, purchase is limited to qualified industrial users with appropriate handling capabilities and regulatory permits. Contact OYSI directly for availability, specifications, and regulatory requirements.