Benzene-1,2-diol

Benzene-1,2-diol is an organic compound also known as catechol or pyrocatechol, with the chemical formula C6H6O2. This aromatic compound consists of a benzene ring with two adjacent hydroxyl groups (-OH) attached to carbon atoms 1 and 2. It has a molecular weight of 110.11 g/mol and is classified as a hazardous substance due to its carcinogenic, mutagenic, and toxic properties. Benzene-1,2-diol appears as colorless crystals or white powder and is readily soluble in water and organic solvents.

Benzene-1,2-diol typically appears as colorless to white crystalline solid at room temperature with a characteristic phenolic odor. It has excellent water solubility due to its two hydroxyl groups, which enable hydrogen bonding. The compound is also soluble in ethanol, ether, and other organic solvents. It has a melting point around 105°C and readily oxidizes when exposed to air, often turning brown due to quinone formation. The substance is sensitive to light and heat, requiring proper storage conditions to maintain stability.

Benzene-1,2-diol serves as an important intermediate in various industrial applications, primarily in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals. It is commonly used in the production of flavoring agents, perfumes, and photographic developers. The compound also finds application in the manufacture of antioxidants, polymerization inhibitors, and rubber chemicals. Additionally, it serves as a precursor for the synthesis of various catechol derivatives used in medical and industrial research applications.

Benzene-1,2-diol requires careful handling due to its carcinogenic and toxic properties (Carc. 1B, Muta. 2, Acute Tox. 3). Always wear appropriate personal protective equipment including nitrile gloves, safety goggles, and respiratory protection in well-ventilated areas. Avoid direct skin and eye contact, inhalation, and ingestion. Work under fume hood when possible and ensure emergency shower and eyewash stations are accessible. Handle containers carefully to prevent spills and ensure all personnel are trained in proper handling procedures before use.

Benzene-1,2-diol must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers in secondary containment to prevent spills and store away from incompatible materials such as strong oxidizing agents. The storage area should be secure, properly labeled, and accessible only to authorized personnel. Regularly inspect containers for signs of deterioration or leakage, and maintain storage temperature below 25°C to prevent degradation and discoloration.

Immediate action is required upon contact with benzene-1,2-diol due to its toxic nature. For skin contact, immediately remove contaminated clothing and wash affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush with clean water for 15 minutes while holding eyelids open. If inhaled, move person to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Contact emergency services and provide safety data sheet to medical personnel.

Benzene-1,2-diol disposal must comply with local, national, and European waste regulations as it is classified as hazardous waste. Never dispose of this substance through regular drainage systems or household waste. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Small quantities may require incineration at authorized facilities with appropriate emission controls. Ensure proper documentation and waste tracking throughout the disposal process. Empty containers should also be treated as hazardous waste unless properly decontaminated.

Benzene-1,2-diol is classified under ADR as Class 6.1 (toxic substances), Packing Group III for transportation purposes. Packages must display appropriate hazard labels including GHS08 and GHS06 pictograms with 'Danger' signal word. Use UN-approved packaging suitable for toxic substances and ensure proper documentation including transport documents and safety data sheets accompany shipments. Drivers must have appropriate ADR training and vehicles must comply with ADR requirements. Avoid transport during extreme temperatures and ensure emergency response information is available.

Benzene-1,2-diol is subject to extensive European chemical regulations including REACH registration requirements and CLP classification as Carc. 1B, Muta. 2, and Acute Tox. 3. Companies must comply with occupational exposure limits and workplace safety regulations. The substance requires proper hazard communication through safety data sheets and labeling. Users must implement appropriate risk management measures and may need to notify authorities depending on quantities handled. Regular monitoring of workplace exposure levels may be mandatory in industrial applications.

Benzene-1,2-diol is available through OYSI, a specialized European distributor of technical chemicals serving industrial customers across Europe. OYSI provides quality-assured products with complete regulatory documentation including safety data sheets and certificates of analysis. As an established chemical distributor, OYSI ensures compliance with European regulations and offers technical support for safe handling and application guidance. Contact OYSI directly for specific product grades, quantities, packaging options, and delivery arrangements tailored to your industrial requirements.