Benzene-1,3-diamine

Benzene-1,3-diamine is an aromatic organic compound with the molecular formula C6H8N2 and CAS number 108-45-2. This chemical consists of a benzene ring with two amino groups (-NH2) attached at the 1 and 3 positions, making it an isomer of phenylenediamine. With a molecular weight of 108.14 g/mol, it appears as crystalline solid and is classified as a hazardous substance requiring careful handling due to its mutagenic and toxic properties.

Benzene-1,3-diamine is a crystalline solid at room temperature, typically appearing as white to light brown crystals that may darken upon exposure to air and light. The compound is moderately soluble in water and readily dissolves in alcohols and other polar solvents. It has a characteristic amine-like odor and tends to be hygroscopic, absorbing moisture from the atmosphere. The melting point is around 63°C, and it exhibits basic properties due to the presence of amino groups.

Benzene-1,3-diamine is primarily used as an intermediate in the production of polymers, particularly polyamides and polyimides. It serves as a crucial building block in the manufacture of high-performance materials, adhesives, and coating resins. The compound is also utilized in the synthesis of dyes, pigments, and pharmaceutical intermediates. Additionally, it finds applications in the production of corrosion inhibitors and as a curing agent for epoxy resins in specialized industrial applications.

Benzene-1,3-diamine requires strict safety measures due to its mutagenic and toxic properties. Personal protective equipment must include chemical-resistant gloves, safety goggles, and respiratory protection to prevent inhalation exposure. Work should be conducted in well-ventilated areas or under fume hoods. Avoid skin and eye contact, and prevent dust formation during handling. Regular monitoring of workplace air quality is recommended, and workers should be trained in proper handling procedures and emergency response protocols.

Benzene-1,3-diamine must be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight. The storage area should be equipped with appropriate ventilation systems and spill containment measures. Keep containers tightly sealed to prevent moisture absorption and contamination. Store separately from oxidizing agents, acids, and incompatible materials. Access should be restricted to trained personnel, and the storage area must comply with local regulations for hazardous chemicals.

Immediate action is required in case of contact with benzene-1,3-diamine. For skin contact, remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15 minutes while holding eyelids open. If inhaled, move the person to fresh air and seek medical attention if breathing difficulties occur. For ingestion, do not induce vomiting and seek immediate medical assistance.

Benzene-1,3-diamine must be disposed of as hazardous waste through licensed waste management companies in accordance with local and European regulations. The substance cannot be discharged to sewers, waterways, or regular waste streams due to its toxic and mutagenic properties. Waste containers should be properly labeled and stored in designated areas until collection. Incineration at high temperatures in specialized facilities is typically the preferred disposal method, following all applicable environmental protection standards.

Benzene-1,3-diamine is classified under ADR Class 6.1 (toxic substances), Packing Group III for transportation purposes. The substance must be packaged in UN-approved containers with appropriate labeling including GHS pictograms (GHS06, GHS08, GHS09) and the danger signal word. Transport vehicles must carry proper documentation, emergency response information, and comply with routing restrictions. Drivers require ADR certification, and the shipment must follow all applicable dangerous goods regulations for road transport within Europe.

Benzene-1,3-diamine is subject to comprehensive European chemical regulations including REACH registration requirements and CLP classification standards. The substance is classified as Muta. 2, Acute Tox. 3, Eye Irrit. 2, Skin Sens. 1, and Aquatic Acute toxicity under CLP regulation. While not currently listed as a SVHC (Substance of Very High Concern), its mutagenic properties require strict compliance with occupational exposure limits, worker protection measures, and environmental release controls throughout the supply chain.

Benzene-1,3-diamine is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across the continent. OYSI provides compliant packaging, proper documentation, and technical support for this regulated substance. As a professional chemical distributor, OYSI ensures full regulatory compliance including REACH requirements and proper classification. Contact OYSI directly to discuss specific requirements, quantities, and delivery options for benzene-1,3-diamine to your European location while meeting all safety and regulatory standards.