Butan-2-one

Butan-2-one is an organic solvent also known as methyl ethyl ketone (MEK) with the chemical formula C4H8O and CAS number 78-93-3. This ketone compound has a molecular weight of 72.11 g/mol and is classified as a flammable liquid. It belongs to the category of volatile organic compounds and is widely used in industrial applications due to its excellent solvent properties and relatively fast evaporation rate.

Butan-2-one is a colorless liquid with a characteristic sweet, acetone-like odor at room temperature. It has excellent solubility in water and is miscible with most organic solvents including alcohols, ethers, and hydrocarbons. The compound exhibits high volatility with a relatively low boiling point, making it an effective solvent for various applications. Its ketone structure provides good chemical stability under normal conditions while maintaining strong dissolving capabilities for resins, polymers, and other organic materials.

Butan-2-one is primarily used as an industrial solvent in paint and coating formulations, adhesives, and printing inks due to its excellent dissolving properties. It serves as a key component in the production of synthetic resins, plastics, and rubber products. The compound is also utilized in pharmaceutical manufacturing, electronics cleaning applications, and as a dewaxing agent in petroleum refining. Its fast evaporation rate makes it particularly valuable in applications requiring quick drying times.

Butan-2-one requires careful handling due to its flammable nature and potential health effects including eye irritation and specific target organ toxicity. Personal protective equipment should include safety goggles, chemical-resistant gloves, and appropriate respiratory protection when working in poorly ventilated areas. Work areas must be well-ventilated and free from ignition sources. Ground all equipment to prevent static electricity buildup, and ensure emergency shower and eyewash stations are readily accessible during handling operations.

Butan-2-one must be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames due to its Class 2 flammable liquid classification. Storage containers should be tightly sealed and made of compatible materials such as steel or appropriate plastic. Keep away from strong oxidizing agents and acids to prevent dangerous reactions. Storage areas should be equipped with appropriate fire suppression systems and maintained below recommended temperature limits to minimize vapor formation.

Butan-2-one exposure requires immediate action depending on the contact route. For eye contact, flush immediately with plenty of clean water for at least 15 minutes and seek medical attention due to its eye irritant properties. In case of skin contact, remove contaminated clothing and wash affected areas thoroughly with soap and water. If inhaled, move the person to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention while providing the safety data sheet to medical personnel.

Butan-2-one disposal must comply with local, national, and EU waste regulations as it is classified as hazardous waste. The substance cannot be disposed of through regular waste streams and requires specialized hazardous waste collection and treatment facilities. Waste should be collected in appropriate containers, properly labeled, and handled by licensed waste management companies. Recovery and recycling options should be considered where feasible to minimize environmental impact while ensuring compliance with waste framework directives.

Butan-2-one is classified under ADR Class 3 (flammable liquids), Packing Group II, requiring specific transport regulations and packaging standards. Vehicles must carry appropriate hazard placards and emergency response information. Packages must meet UN specification requirements and be properly labeled with GHS02 and GHS07 pictograms along with the 'Danger' signal word. Transport personnel require ADR training certification, and vehicles must be equipped with appropriate fire extinguishing equipment and emergency response materials.

Butan-2-one is subject to multiple European regulations including REACH registration requirements and CLP classification as Flam. Liq. 2, STOT SE 3, and Eye Irrit. 2. The substance is not currently listed as a Substance of Very High Concern (SVHC) under REACH. Industrial users must comply with occupational exposure limits, workplace safety regulations, and environmental emission controls. Certain applications may require additional permits or notifications depending on usage quantities and local regulatory requirements in specific EU member states.

Butan-2-one is available through OYSI, a specialized European distributor of technical chemicals serving industrial and professional customers across Europe. OYSI provides high-quality butan-2-one with full regulatory compliance, technical documentation, and safety data sheets in local languages. As an established chemical distributor, OYSI ensures proper packaging, labeling, and transport arrangements while offering technical support for industrial applications. Contact OYSI directly for specific product specifications, packaging options, and delivery arrangements to your location.