2,5-dinitrophenol

2,5-dinitrophenol is an organic chemical compound with the molecular formula C6H4N2O5 and CAS number 329-71-5. This aromatic compound belongs to the family of dinitrophenols, characterized by a benzene ring substituted with two nitro groups (-NO2) at positions 2 and 5, and one hydroxyl group (-OH). With a molecular weight of 184.11 g/mol, it appears as a crystalline solid and is primarily used in chemical synthesis and industrial applications.

2,5-dinitrophenol is a yellow to orange crystalline solid at room temperature with a characteristic phenolic odor. The compound exhibits moderate solubility in water and higher solubility in organic solvents such as ethanol and acetone. It has a relatively high melting point due to its aromatic structure and hydrogen bonding capabilities from the phenolic hydroxyl group. The presence of two nitro groups makes it an electron-deficient compound with distinctive chemical reactivity.

2,5-dinitrophenol is primarily used as an intermediate in organic synthesis and chemical manufacturing processes. It serves as a building block for the production of dyes, pigments, and other specialized chemicals. The compound is also utilized in analytical chemistry as a reagent for various chemical analyses and research applications. Additionally, it may be employed in the synthesis of pharmaceuticals and agrochemicals, where its unique chemical structure provides specific reactivity patterns.

2,5-dinitrophenol should be handled using 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 of dust or vapors. Avoid direct skin contact and ingestion, and ensure proper grounding to prevent static electricity buildup. Always wash hands thoroughly after handling and keep the material away from heat sources, sparks, and open flames during manipulation.

2,5-dinitrophenol should be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly closed and use original packaging when possible. Store separately from incompatible materials such as strong oxidizing agents, reducing agents, and alkalis. Ensure storage areas are equipped with appropriate fire suppression systems and maintain temperatures below 25°C. Regular inspection of containers for damage or deterioration is recommended to prevent accidental release.

In case of skin contact with 2,5-dinitrophenol, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush eyes with clean water for at least 15 minutes and seek medical attention. If inhaled, move the person to fresh air immediately. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician and provide the safety data sheet for proper medical treatment.

2,5-dinitrophenol disposal must comply with local, national, and European waste regulations including the Waste Framework Directive. The compound should be classified and disposed of through authorized waste management companies specializing in chemical waste treatment. Do not discharge into drains, sewers, or the environment. Incineration at licensed facilities with appropriate emission controls is typically the preferred disposal method. Always consult with certified waste disposal contractors and maintain proper waste documentation for regulatory compliance.

2,5-dinitrophenol is classified under ADR Class 1 for transportation, indicating it falls under explosive materials regulations. Transportation must comply with ADR/RID regulations for dangerous goods, requiring appropriate packaging, labeling, and documentation. Vehicles must be properly equipped and drivers must hold valid dangerous goods transportation certificates. Proper shipping papers, emergency response information, and hazard placards are mandatory. Consult with certified dangerous goods transportation specialists to ensure full regulatory compliance during shipment.

2,5-dinitrophenol is subject to REACH regulation requiring registration for import or manufacture above one tonne per year in the EU. The compound must comply with CLP regulation for classification, labeling, and packaging requirements. While not currently listed as an SVHC (Substance of Very High Concern), it may be subject to specific national restrictions or workplace exposure limits. Companies must maintain safety data sheets, conduct chemical safety assessments, and comply with industrial emissions regulations when handling this substance.

2,5-dinitrophenol is available through OYSI, a specialized European distributor of technical chemicals serving industrial and professional customers across Europe. OYSI provides high-quality chemical products with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical supplier, OYSI ensures reliable supply chains and technical expertise for customers requiring 2,5-dinitrophenol for legitimate industrial applications. Contact OYSI directly for specific availability, packaging options, and delivery arrangements throughout European markets.