Benzene-1,3-diamine

Benzene-1,3-diamine is an organic chemical compound with the molecular formula C6H8N2 and CAS number 108-45-2. This aromatic diamine consists of a benzene ring with two amino groups (-NH2) positioned at the 1 and 3 positions. With a molecular weight of 108.14 g/mol, it belongs to the class of phenylenediamines and is classified as a hazardous substance with mutagenic properties and acute toxicity.

Benzene-1,3-diamine appears as crystalline solid at room temperature, typically white to light brown in color. The compound has a characteristic amine-like odor and exhibits good solubility in water and polar organic solvents. Its aromatic structure with two amino groups makes it highly reactive, particularly in oxidation reactions. The substance tends to darken upon exposure to air and light due to oxidation processes.

Benzene-1,3-diamine is primarily used as an intermediate in the production of polymers, particularly aramid fibers and high-performance plastics. It serves as a key raw material in manufacturing specialty chemicals, dyes, and pharmaceutical intermediates. The compound is also utilized in the production of corrosion inhibitors, antioxidants, and as a curing agent for epoxy resins in industrial applications.

Benzene-1,3-diamine requires careful handling due to its acute toxicity and mutagenic properties. Personal protective equipment must include chemical-resistant gloves, safety goggles, and respiratory protection when handling powders or in poorly ventilated areas. Work should be conducted in well-ventilated areas or under fume hoods. Avoid skin contact and inhalation, as the substance can cause skin sensitization and is harmful if absorbed through skin.

Benzene-1,3-diamine should be stored in tightly sealed containers in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. The storage area must be separate from incompatible materials such as strong oxidizers and acids. Containers should be kept in secondary containment to prevent environmental release. Temperature should be maintained below 25°C to prevent degradation and ensure product stability.

Benzene-1,3-diamine exposure requires immediate action due to its toxicity. In case of skin contact, immediately wash with plenty of water for at least 15 minutes and remove contaminated clothing. For eye contact, rinse thoroughly with water and seek immediate medical attention. If inhaled, move to fresh air and seek medical attention if breathing difficulties occur. Never induce vomiting if ingested - seek immediate medical care.

Benzene-1,3-diamine disposal must comply with local hazardous waste regulations due to its toxic and potentially mutagenic properties. The substance cannot be disposed of in regular waste streams and requires treatment at licensed hazardous waste facilities. Small quantities should be collected in appropriate containers and labeled for hazardous waste collection. Incineration at high temperatures in specialized facilities is typically the preferred disposal method.

Benzene-1,3-diamine is classified under ADR Class 6.1 (Toxic substances), Packing Group III for transportation. Packages must be properly labeled with appropriate hazard pictograms (GHS06, GHS08, GHS09) and the "Danger" signal word. Transportation requires compliance with dangerous goods regulations, including proper packaging, documentation, and vehicle requirements. Only certified carriers experienced in hazardous materials transport should handle shipments.

Benzene-1,3-diamine is subject to comprehensive chemical regulations including REACH registration requirements in the European Union and CLP classification obligations. The substance is classified as Muta. 2, Acute Tox. 3, Eye Irrit. 2, Skin Sens. 1, and poses aquatic toxicity concerns. While not currently listed as an SVHC, its mutagenic classification means it faces strict handling, labeling, and documentation requirements under chemical safety legislation.

Benzene-1,3-diamine is available through OYSI, a European distributor specializing in technical chemicals. As an established chemical distributor, OYSI provides reliable supply chains across European markets with proper documentation and regulatory compliance. Due to the substance's hazardous classification, purchases typically require qualification as a professional user and compliance with local regulations regarding storage, handling, and end-use applications.