4-tert-butylphenol

4-tert-butylphenol is an organic chemical compound with the molecular formula C10H14O and CAS number 98-54-4. It belongs to the phenol family, characterized by a hydroxyl group attached to a benzene ring with a tert-butyl substituent at the para position. With a molecular weight of 150.22 g/mol, this substance is classified as hazardous with reproductive toxicity concerns, skin and eye irritation properties, and aquatic toxicity.

4-tert-butylphenol is typically a white to pale yellow crystalline solid at room temperature with a characteristic phenolic odor. It has moderate solubility in water but dissolves readily in organic solvents such as alcohols, ethers, and aromatic hydrocarbons. The compound exhibits typical phenolic properties including acidic behavior due to the hydroxyl group and susceptibility to oxidation under certain conditions.

4-tert-butylphenol is primarily used as an intermediate in the production of antioxidants, particularly for rubber and plastic applications. It serves as a precursor for manufacturing butylated hydroxytoluene (BHT) and other phenolic antioxidants. Additionally, it finds applications in the synthesis of resins, adhesives, and specialty chemicals. The compound is also utilized in research and development activities within the chemical industry.

4-tert-butylphenol requires careful handling due to its hazardous classification including reproductive toxicity and irritant properties. Essential personal protective equipment includes chemical-resistant gloves, safety goggles or face shield, and protective clothing to prevent skin contact. Work should be conducted in well-ventilated areas or under fume hoods. Avoid inhalation of dust or vapors, and prevent contact with eyes and skin. Emergency eyewash stations and safety showers should be readily accessible.

4-tert-butylphenol should be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly sealed to prevent contamination and oxidation. Store away from incompatible materials such as strong oxidizing agents and bases. The storage area should be equipped with appropriate spill containment measures and fire protection systems. Maintain temperatures below 25°C when possible to ensure product stability.

In case of skin contact with 4-tert-butylphenol, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for at least 15 minutes and seek medical attention due to the eye damage classification. If inhaled, move to fresh air immediately. If swallowed, do not induce vomiting and seek immediate medical attention. Always consult a physician in case of exposure.

4-tert-butylphenol must be disposed of according to local, national, and international hazardous waste regulations due to its environmental toxicity classification. The substance should not be released into waterways or soil due to its aquatic chronic toxicity. Contact licensed hazardous waste disposal companies for proper treatment, which may include high-temperature incineration or other approved methods. Empty containers should also be treated as hazardous waste unless properly decontaminated.

4-tert-butylphenol is classified under ADR as Class 9 (Miscellaneous dangerous goods), Packing Group III, indicating moderate transport hazard. It must be packaged in UN-approved containers with appropriate marking, labeling, and documentation. Transport vehicles require proper placarding and drivers need ADR certification. The substance should be secured to prevent spillage during transport and separated from incompatible materials. Emergency response information must accompany shipments.

4-tert-butylphenol is subject to various European regulations including REACH registration requirements and CLP classification for hazard communication. It must be labeled with GHS pictograms (GHS08, GHS05, GHS09) and the danger signal word due to its reproductive toxicity, corrosive, and environmental hazard properties. While not currently listed as an SVHC, it requires safety data sheets and may be subject to workplace exposure limits and environmental discharge restrictions in various EU member states.

4-tert-butylphenol is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides high-quality 4-tert-butylphenol with complete regulatory documentation including safety data sheets, certificates of analysis, and REACH compliance documentation. As a professional chemical distributor, OYSI ensures proper packaging, labeling, and transport arrangements throughout Europe, serving industries requiring this specialized phenolic intermediate for their manufacturing processes.