1,2-dinitrobenzene

1,2-dinitrobenzene is an organic chemical compound with the molecular formula C6H4N2O4 and CAS number 528-29-0. It belongs to the nitroaromatic family, featuring two nitro groups (-NO2) attached to adjacent carbon atoms on a benzene ring. With a molecular weight of 168.11 g/mol, this compound appears as pale yellow crystals and serves as an important intermediate in chemical synthesis and manufacturing processes.

1,2-dinitrobenzene is a crystalline solid that typically appears as pale yellow to light brown crystals or powder at room temperature. It has a melting point around 118°C and exhibits limited solubility in water but dissolves readily in organic solvents such as alcohol, ether, and benzene. The compound has a characteristic mild aromatic odor and demonstrates stability under normal storage conditions.

1,2-dinitrobenzene serves primarily as a chemical intermediate in organic synthesis, particularly in the production of dyes, pigments, and pharmaceutical compounds. It is commonly used in the manufacture of benzofuroxan derivatives and serves as a precursor for various nitroaniline compounds. The substance also finds applications in research laboratories for analytical chemistry and as a starting material for specialized chemical syntheses.

Safe handling of 1,2-dinitrobenzene requires wearing appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Avoid direct skin contact and ingestion, and ensure proper grounding when handling to prevent static discharge. Always wash hands thoroughly after handling and before eating or drinking.

1,2-dinitrobenzene should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and incompatible materials. Keep containers upright and properly labeled, maintaining storage temperatures below 25°C when possible. Store away from strong reducing agents, metals, and combustible materials. Ensure storage areas are equipped with appropriate spill containment measures and fire suppression systems.

In case of skin contact with 1,2-dinitrobenzene, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, flush eyes with clean water for 15-20 minutes while holding eyelids open. In case of inhalation, move the person to fresh air immediately. If ingestion occurs, do not induce vomiting and seek immediate medical attention.

1,2-dinitrobenzene disposal must comply with local, national, and international waste regulations as it is classified as hazardous waste. The substance should be collected in appropriate containers and disposed of through licensed hazardous waste management facilities. Incineration at high temperatures in specialized facilities is typically the preferred disposal method. Never dispose of this chemical down drains, in regular trash, or by burial.

1,2-dinitrobenzene is classified under ADR Class 6.1 (Toxic substances) Packing Group II, requiring compliance with dangerous goods transportation regulations. It must be packaged in UN-approved containers with proper hazard labels and documentation. Transport vehicles must carry appropriate emergency equipment and drivers require ADR certification. Proper shipping papers, emergency response information, and tracking documentation are mandatory for legal transport.

1,2-dinitrobenzene is subject to various chemical regulations including REACH registration requirements in the European Union for commercial use above specified tonnage thresholds. It must comply with CLP regulation for classification, labeling, and packaging. While not currently listed as an SVHC (Substance of Very High Concern), users must follow workplace exposure limits and safety data sheet requirements as established by regulatory authorities.

1,2-dinitrobenzene is available through OYSI, a specialized European distributor of technical chemicals serving industrial and research customers across Europe. As an established chemical supplier, OYSI provides quality-assured products with complete documentation including safety data sheets, certificates of analysis, and regulatory compliance information. Contact OYSI directly for availability, specifications, and technical support for your specific application requirements.