Benzene-1,3-diol

Benzene-1,3-diol is an organic chemical compound with the molecular formula C6H6O2 and CAS number 108-46-3. It is a dihydroxybenzene isomer, commonly known as resorcinol, featuring two hydroxyl groups attached to a benzene ring in meta positions. With a molecular weight of 110.11 g/mol, this aromatic compound serves as an important industrial intermediate in various chemical processes and manufacturing applications.

Benzene-1,3-diol appears as white to light beige crystalline needles or powder at room temperature. It has a characteristic sweet odor and exhibits excellent water solubility due to its hydroxyl groups. The compound has a melting point around 110°C and is also soluble in alcohol and ether. It tends to darken upon exposure to light and air, requiring proper storage conditions to maintain its quality and appearance.

Benzene-1,3-diol serves as a key intermediate in the production of adhesives, particularly resorcinol-formaldehyde resins used in wood bonding applications. It is utilized in the manufacture of rubber compounds, hair dyes, pharmaceuticals, and UV absorbers. The chemical industry also employs it in the synthesis of various specialty chemicals, flame retardants, and as a component in certain photographic developers and antiseptic formulations.

Benzene-1,3-diol requires careful handling due to its classification as Acute Tox. 4, Skin Irrit. 2, Eye Irrit. 2, Skin Sens. 1B, and STOT SE 1. Essential PPE includes chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or use local exhaust ventilation to minimize inhalation exposure. Avoid skin and eye contact, and prevent dust formation during handling operations.

Benzene-1,3-diol should be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly closed and protected from light to prevent discoloration. Store away from incompatible materials such as strong oxidizing agents and bases. Maintain temperatures below 25°C when possible and ensure storage areas are equipped with appropriate spill containment measures and fire protection systems.

Benzene-1,3-diol contact requires immediate action due to its irritant and sensitizing properties. For skin contact, remove contaminated clothing and wash thoroughly with soap and water for at least 15 minutes. In case of eye contact, rinse immediately with plenty of water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. Seek medical advice if symptoms persist or if large amounts were involved.

Benzene-1,3-diol disposal must comply with local and national hazardous waste regulations due to its classification as harmful and aquatic pollutant. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Do not discharge into drains, waterways, or soil. Small laboratory quantities may be disposed of through approved incineration facilities. Always consult local environmental authorities for specific disposal requirements in your region.

Benzene-1,3-diol is classified under ADR as Class 6.1 (Toxic substances), Packing Group III, indicating moderate danger during transport. It requires appropriate UN-specification packaging and proper labeling with GHS07, GHS08, and GHS09 pictograms. Transport documents must include the correct shipping name and UN number. Vehicles must carry appropriate emergency equipment and drivers need ADR training for Class 6.1 substances.

Benzene-1,3-diol is subject to REACH regulation requiring registration for import/manufacture above 1 tonne annually in the EU. It falls under CLP classification with specific labeling requirements including 'Danger' signal word and appropriate hazard statements. While not currently listed as SVHC, its toxic and sensitizing properties require compliance with occupational exposure limits and worker protection measures under various national chemical safety regulations.

Benzene-1,3-diol is available through OYSI, a European distributor specializing in technical chemicals for industrial applications. As an established chemical supplier, OYSI can provide this compound with appropriate documentation, safety data sheets, and regulatory compliance support. Contact OYSI directly for availability, packaging options, and delivery throughout Europe, ensuring you receive quality products meeting European standards and regulations.