Benzene-1,2-diamine

Benzene-1,2-diamine is an aromatic organic compound with the molecular formula C6H8N2 and CAS number 95-54-5. Also known as o-phenylenediamine, it consists of a benzene ring with two adjacent amino groups (-NH2) attached to carbon atoms 1 and 2. With a molecular weight of 108.14 g/mol, this chemical is classified as hazardous with multiple danger classifications including carcinogenic and mutagenic properties, requiring careful handling in industrial applications.

Benzene-1,2-diamine appears as crystalline solid at room temperature, typically exhibiting a pale yellow to brown coloration that darkens upon exposure to air and light. The compound has a characteristic amine-like odor and demonstrates good solubility in water, alcohol, and other polar solvents. Due to its aromatic structure with two amino groups, it exhibits basic properties and can form salts with acids, making it reactive in various chemical processes.

Benzene-1,2-diamine serves primarily as an intermediate in the production of dyes, pigments, and polymers in industrial applications. It is extensively used in the manufacture of hair dyes, textile dyes, and as a curing agent for epoxy resins. Additionally, it functions as a building block for pharmaceuticals, antioxidants, and corrosion inhibitors. The compound also finds application in analytical chemistry as a reagent for detecting various substances.

Benzene-1,2-diamine requires strict safety measures due to its carcinogenic and mutagenic properties. Personnel must wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection in well-ventilated areas. Skin contact and inhalation must be avoided completely. Work should be conducted in fume hoods with proper ventilation systems, and all safety data sheet recommendations must be followed rigorously to prevent exposure and potential health risks.

Benzene-1,2-diamine must be stored in tightly sealed containers in cool, dry, well-ventilated areas away from direct sunlight and heat sources. The storage area should be separated from incompatible materials such as strong oxidizing agents and acids. Containers should be kept upright and properly labeled according to GHS requirements. Temperature control is essential to prevent degradation, and storage facilities must comply with local regulations for hazardous chemicals handling and containment.

Immediate action is required for any contact with benzene-1,2-diamine. For skin contact, remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If inhaled, move the person to fresh air immediately and seek medical attention. For eye contact, rinse with clean water for at least 15 minutes. In all cases of exposure, seek immediate medical attention and provide the safety data sheet to healthcare professionals.

Benzene-1,2-diamine disposal must comply with local and national hazardous waste regulations due to its toxic and potentially carcinogenic nature. The substance cannot be disposed of in regular waste streams and requires specialized hazardous waste treatment facilities. Waste should be collected in appropriate containers, properly labeled, and handled by licensed waste disposal companies. Incineration at high temperatures in approved facilities is typically the preferred disposal method for this chemical.

Benzene-1,2-diamine is classified under ADR Class 6.1 (Toxic substances) Group III for transportation purposes. Packages must comply with specific packing instructions and display appropriate hazard labels including GHS pictograms GHS06, GHS08, and GHS09. Vehicles must carry proper documentation, emergency response information, and drivers require hazardous materials training. Transportation must follow all applicable dangerous goods regulations to ensure safe handling during transit.

Benzene-1,2-diamine is subject to comprehensive regulatory oversight under REACH, CLP, and various national chemical safety regulations. The substance carries multiple hazard classifications including Carcinogenic Category 2, Mutagenic Category 2, and Acute Toxicity warnings. While not currently listed as an SVHC, it requires strict compliance with occupational exposure limits, proper labeling, and safety data sheet provisions. Users must ensure full regulatory compliance before handling or processing this chemical.

Benzene-1,2-diamine is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across the continent. As an established chemical supplier, OYSI ensures proper handling, documentation, and regulatory compliance for this hazardous substance. Customers must provide appropriate credentials and intended use information due to the chemical's restricted nature. Professional buyers can contact OYSI directly to discuss availability, specifications, and delivery arrangements for their specific industrial applications.