Butan-2-one

Butan-2-one is an organic ketone with the molecular formula C4H8O and CAS number 78-93-3. Also known as methyl ethyl ketone (MEK), it is a colorless, volatile liquid with a characteristic sweet odor. With a molecular weight of 72.11 g/mol, this flammable solvent is widely used in industrial applications due to its excellent dissolving properties and relatively fast evaporation rate.

Butan-2-one is a colorless liquid at room temperature with a characteristic sweet, acetone-like odor. It has excellent solubility in water and most organic solvents, making it highly versatile. The compound is highly volatile with a relatively low boiling point, and exhibits strong flammability characteristics. Its ketone functional group gives it polar properties while maintaining compatibility with both polar and non-polar substances.

Butan-2-one serves as a powerful industrial solvent in paint formulations, adhesives, and coatings production. It is extensively used in the manufacture of plastics, particularly for dissolving and processing various polymers. The chemical industry employs it as an extraction solvent, in pharmaceutical synthesis, and for cleaning applications. Its fast evaporation rate makes it valuable in printing inks and surface preparation processes.

Butan-2-one requires careful handling due to its flammable nature and potential for eye and respiratory irritation. Always wear appropriate personal protective equipment including safety goggles, chemical-resistant gloves, and ensure adequate ventilation. Eliminate ignition sources and use explosion-proof equipment. Avoid direct contact with skin and eyes, and prevent inhalation of vapors. Work in well-ventilated areas or use local exhaust ventilation systems.

Butan-2-one must be stored in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames. Use appropriate containers resistant to the solvent and ensure proper grounding to prevent static electricity buildup. Store separately from strong oxidizing agents and incompatible materials. Maintain storage temperatures below flashpoint and implement proper fire prevention measures including appropriate fire suppression systems.

Immediate first aid measures depend on the type of exposure to butan-2-one. For skin contact, remove contaminated clothing and rinse thoroughly with water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes and seek medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention.

Butan-2-one disposal must comply with local and European waste regulations as it is classified as hazardous waste. Never discharge into drains, waterways, or soil. Collect waste in appropriate containers and arrange disposal through licensed hazardous waste contractors. Small quantities may be recovered through distillation for reuse. Always consult local environmental authorities for specific disposal requirements and approved waste management facilities.

Butan-2-one is classified under ADR as Class 3 (flammable liquid), Packing Group II, requiring specific transport regulations. Packages must bear appropriate hazard labels including GHS02 and GHS07 pictograms with 'Danger' signal word. Use approved containers and vehicles suitable for flammable liquids transport. Drivers must hold ADR certification and carry appropriate emergency equipment and documentation during transport.

Butan-2-one is regulated under European REACH and CLP regulations, requiring safety data sheets and appropriate labeling with GHS02 and GHS07 pictograms. It carries hazard classifications for flammable liquid (Category 2), eye irritation (Category 2), and specific target organ toxicity (Category 3). The substance is not currently listed as SVHC under REACH but must comply with standard chemical safety and workplace exposure regulations.

OYSI is a reliable European distributor of butan-2-one, offering high-quality chemical products to industrial customers across Europe. As specialized chemical distributors, we ensure proper handling, storage, and documentation compliance with European regulations. Our technical expertise supports customers with product selection and safety guidance. Contact OYSI directly for availability, specifications, and pricing information tailored to your specific industrial requirements.