2-methyloxirane

2-methyloxirane is an organic chemical compound with the molecular formula C3H6O and CAS number 75-56-9. It belongs to the epoxide family, characterized by a three-membered ring containing an oxygen atom. With a molecular weight of 58.08 g/mol, this substance is classified as highly hazardous due to its flammable, carcinogenic, and mutagenic properties. It requires careful handling under controlled conditions due to its significant health and safety risks.

2-methyloxirane is a colorless liquid at room temperature with a characteristic ether-like odor. As an epoxide, it exhibits high reactivity due to ring strain in its three-membered cyclic structure. The compound has a low boiling point and high vapor pressure, making it highly volatile. It is miscible with most organic solvents and shows limited solubility in water. Its high flammability classification (Flam. Liq. 1) indicates extremely low flash point and easy ignition.

2-methyloxirane serves primarily as an intermediate in chemical synthesis and polymer production. It is used in the manufacture of polyols, surfactants, and specialty chemicals through ring-opening reactions. The compound finds applications in producing glycol ethers, pharmaceutical intermediates, and industrial solvents. Due to its high reactivity, it is valuable in creating branched polymer structures and as a building block for complex organic molecules in fine chemical manufacturing.

Safe handling of 2-methyloxirane requires comprehensive protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection. Work must be conducted in well-ventilated areas or under fume hoods due to its toxic vapors and carcinogenic properties. Avoid all ignition sources as it is extremely flammable (Class 1). Personnel should be trained on emergency procedures, and exposure monitoring is essential. Minimize skin and eye contact, and ensure immediate access to emergency eyewash and shower facilities.

2-methyloxirane must be stored in tightly sealed containers in cool, dry, and well-ventilated areas away from heat sources and ignition. Storage requires temperature control below 25°C and protection from direct sunlight. The substance should be kept separate from strong acids, bases, and oxidizing agents due to potential violent reactions. Use only approved containers resistant to chemical attack, and implement proper grounding procedures to prevent static electricity buildup during handling.

Immediate action is required for any contact with 2-methyloxirane. For skin contact, remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. In case of eye exposure, flush immediately with clean water for 15-20 minutes while keeping eyelids open. If inhaled, move victim to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Contact poison control center and provide safety data sheet to medical personnel.

2-methyloxirane disposal must comply with local and national hazardous waste regulations as it is classified as dangerous waste. The substance cannot be disposed of in regular waste streams due to its carcinogenic and mutagenic properties. Disposal should be performed only by licensed hazardous waste management companies through approved methods such as high-temperature incineration or chemical treatment. Maintain proper documentation and waste manifests as required by environmental regulations.

2-methyloxirane is classified under ADR Class 3 (flammable liquids), Packing Group I, indicating maximum danger level for transport. Transportation requires specialized containers meeting UN specifications and proper hazard labeling with flammable liquid markings. Vehicles must be equipped with appropriate fire extinguishing equipment and drivers need ADR certification. Transport documentation must include proper shipping names, hazard classes, and emergency response information. Temperature control during transport may be necessary to prevent vapor buildup.

2-methyloxirane is subject to extensive regulatory oversight under REACH, CLP, and national chemical legislation due to its carcinogenic (1B) and mutagenic (1B) classification. The substance requires registration under REACH for manufacturing or import above threshold quantities. Workplace exposure limits apply, and users must implement risk management measures. Special authorizations may be required for certain uses, and the substance is subject to strict labeling requirements including danger pictograms GHS02, GHS06, and GHS08.

2-methyloxirane is available through OYSI, a specialized European distributor of technical chemicals with expertise in hazardous substance handling. OYSI provides proper documentation, safety data sheets, and regulatory compliance support for this controlled substance. Due to its hazardous classification, purchase requires verification of intended use and compliance with regulatory requirements. Professional customers can contact OYSI for availability, technical specifications, and guidance on safe handling procedures for this specialized chemical intermediate.