Diphenyldiazene

Diphenyldiazene is an organic chemical compound with the molecular formula C12H10N2 and CAS number 103-33-3. It belongs to the diazene family, featuring two phenyl groups connected by a diazene (-N=N-) linkage. With a molecular weight of 182.22 g/mol, this compound is classified as a hazardous substance due to its carcinogenic and mutagenic properties, requiring careful handling in industrial applications.

Diphenyldiazene is typically a crystalline solid at room temperature with a characteristic orange to red coloration. The compound has limited water solubility but dissolves well in organic solvents such as ethanol, benzene, and chloroform. It exhibits stability under normal conditions but can decompose under heat or light exposure. The molecular structure consists of two benzene rings connected by an azo linkage (-N=N-).

Diphenyldiazene is primarily used as an intermediate in chemical synthesis and as a reagent in organic chemistry reactions. It serves in the production of dyes, pigments, and other azo compounds. The substance is also utilized in pharmaceutical research and development processes. Due to its hazardous classification, its use is restricted to specialized industrial applications where proper safety measures can be implemented.

Diphenyldiazene requires strict safety protocols due to its carcinogenic and mutagenic properties. Essential protective equipment includes chemical-resistant gloves, safety goggles, and respiratory protection when handling powders. Work must be conducted in well-ventilated areas or under fume hoods. Avoid skin contact, inhalation, and ingestion. Emergency eyewash and shower facilities should be readily accessible in work areas.

Diphenyldiazene must be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Use tightly sealed containers made of compatible materials to prevent contamination and decomposition. Store separately from incompatible substances such as strong oxidizers and reducing agents. Maintain storage temperatures below 25°C and ensure proper labeling with hazard warnings and safety information.

Immediate action is crucial upon contact with diphenyldiazene. For skin contact, remove contaminated clothing and wash affected areas thoroughly with soap and water for at least 15 minutes. If eyes are affected, rinse immediately with clean water for 15 minutes and seek medical attention. In case of inhalation, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical assistance.

Diphenyldiazene disposal must comply with local and international hazardous waste regulations due to its carcinogenic classification. The substance cannot be disposed of as regular waste and requires specialized hazardous waste treatment facilities. Contact licensed waste disposal companies for proper collection and treatment. Small quantities may require incineration at high temperatures in approved facilities. Always consult local environmental authorities for specific disposal requirements.

Diphenyldiazene is classified as ADR Class 9 (Miscellaneous dangerous substances), Packing Group III for transportation purposes. This classification requires specific packaging, labeling, and documentation during transport. Packages must bear appropriate hazard labels including GHS pictograms GHS07, GHS08, and GHS09. Transport vehicles must comply with ADR regulations, and drivers require appropriate training for handling hazardous materials.

Diphenyldiazene is subject to strict regulatory oversight under REACH and CLP regulations in Europe. Its classification as Carcinogenic 1B and Mutagenic 2 triggers specific authorization and restriction requirements. Users must comply with occupational exposure limits and implement risk management measures. The substance requires safety data sheets and proper hazard communication. Regular monitoring and reporting may be mandatory for industrial users.

Diphenyldiazene is available through specialized chemical distributors in Europe, including OYSI, which supplies high-quality chemical products to industrial customers. Due to its hazardous classification, purchases typically require proper documentation, including end-use declarations and safety qualifications. Contact OYSI's technical team for product specifications, regulatory compliance support, and delivery options tailored to your specific industrial requirements.