2-methylprop-2-enoic acid

2-methylprop-2-enoic acid is an organic compound with the molecular formula C4H6O2 and CAS number 79-41-4. Also known as methacrylic acid, it is an unsaturated carboxylic acid with a molecular weight of 86.09 g/mol. This colorless liquid is characterized by its acrylic odor and corrosive properties. It belongs to the family of α,β-unsaturated carboxylic acids and contains a vinyl group that makes it highly reactive for polymerization reactions.

2-methylprop-2-enoic acid is a colorless to pale yellow liquid at room temperature with a characteristic pungent, acrid odor. It has a boiling point of approximately 163°C and a melting point of 16°C. The compound is highly soluble in water and most organic solvents including alcohols, ethers, and acetone. It exhibits corrosive properties due to its acidic nature and can undergo polymerization reactions, especially when exposed to heat, light, or in the presence of initiators.

2-methylprop-2-enoic acid is primarily used as a monomer in the production of polymethyl methacrylate (PMMA) and other acrylic polymers. It serves as a key raw material in manufacturing acrylic resins, coatings, adhesives, and sealants. The compound is also utilized in the production of superabsorbent polymers, textile treatments, and as an intermediate in organic synthesis. Its reactive double bond makes it valuable for creating cross-linked polymer networks in various industrial applications.

2-methylprop-2-enoic acid must be handled with extreme caution due to its corrosive and toxic properties. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, face shield, and acid-resistant clothing. Work should be conducted in well-ventilated areas or under fume hoods to avoid inhalation exposure. Avoid contact with skin, eyes, and clothing. Use appropriate spill containment materials and ensure emergency eyewash stations and safety showers are readily accessible. Never work alone when handling this corrosive substance.

2-methylprop-2-enoic acid should be stored in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and ignition sources. Use corrosion-resistant containers with tight-fitting lids to prevent contamination and polymerization. Store separately from bases, oxidizing agents, and reducing agents to avoid dangerous reactions. Maintain storage temperature below 25°C and add appropriate inhibitors to prevent unwanted polymerization. Ensure storage areas have appropriate spill containment measures and are equipped with suitable fire suppression systems.

Immediate action is critical due to the corrosive nature of 2-methylprop-2-enoic acid. For skin contact, immediately flush with copious amounts of water for at least 15 minutes while removing contaminated clothing. For eye contact, rinse immediately with water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air and seek medical help if breathing difficulties occur. If ingested, do not induce vomiting; rinse mouth and seek immediate medical attention. Always consult a physician after any significant exposure.

2-methylprop-2-enoic acid must be disposed of as hazardous waste in accordance with local, national, and EU regulations. Never discharge into sewers, waterways, or soil due to its corrosive and toxic properties. Contact licensed hazardous waste disposal companies for proper treatment and disposal. Small quantities may be neutralized carefully with appropriate bases under controlled conditions by trained personnel. Always consult current waste disposal regulations and safety data sheets before disposal. Maintain proper documentation for all waste disposal activities.

2-methylprop-2-enoic acid is classified as ADR Class 8 (corrosive substances), Packing Group II, indicating high corrosive hazard during transport. It must be packaged in UN-approved containers suitable for corrosive liquids and properly labeled with appropriate hazard placards. Transport vehicles must carry emergency response information and appropriate spill control materials. Drivers require ADR certification for hazardous materials transport. Ensure compliance with all applicable transport regulations including proper documentation, vehicle requirements, and route restrictions for corrosive materials.

2-methylprop-2-enoic acid is subject to comprehensive EU chemical regulations including REACH registration requirements and CLP classification as Acute Tox. 4 and Skin Corr. 1A with danger signal word. It requires safety data sheets and appropriate hazard labeling with GHS07 and GHS05 pictograms. The substance is not currently listed as SVHC under REACH. Workplace exposure limits may apply, and specific industrial emission controls might be required. Companies must ensure compliance with occupational health regulations and environmental discharge limits.

2-methylprop-2-enoic acid is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides reliable supply chains across Europe with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures product quality, appropriate packaging, and adherence to transport regulations. Their technical expertise helps customers with handling recommendations and regulatory requirements. Contact OYSI directly for availability, specifications, and delivery options throughout European markets for your methacrylic acid requirements.