Methyl Isobutyl Ketone
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Category:
Specialty Chemicals
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Product Profile
1. Chemical Structure and Properties
Molecular Formula: C₆H₁₂O
Structural Formula: CH₃CH₂C(CH₃)C(=O)CH₃ — A ketone with a branched carbon chain, featuring a carbonyl group (C=O) at the third carbon.
Physical Properties:
Appearance: Colorless liquid with characteristic solvent odor
Boiling Point: 117–118°C
Density: 0.802 g/cm³ at 20°C
Solubility: Slightly soluble in water; miscible with most organic solvents (alcohols, ethers, esters)
Chemical Properties:
Moderate polarity due to the carbonyl group
Stable under normal conditions, but can form peroxides under prolonged air exposure
Combustible; flash point: 23°C (closed cup)
2. Industrial Applications
Solvent in Coatings and Paints:
Widely used in varnishes, lacquers, and nitrocellulose coatings for enhanced drying and smooth finish
Chemical Intermediate:
Key raw material in the production of adhesives, synthetic rubber, and rubber chemicals
Cleaning and Extraction:
Applied as an industrial solvent for degreasing and extraction processes
Electronics and Pharmaceuticals:
Used in formulations for resins, coatings, and some pharmaceutical syntheses
3. Safety and Toxicology
Health Hazards:
Inhalation: Can irritate respiratory tract; prolonged exposure may affect the central nervous system
Skin/Eye Contact: Causes irritation
Ingestion: Harmful; may cause nausea and dizziness
Fire & Explosion:
Highly flammable liquid and vapor
Keep away from open flames, sparks, and heat sources
Protective Measures:
Use PPE: gloves, goggles, and appropriate ventilation
Avoid inhalation; in case of contact, wash thoroughly and seek medical attention if necessary
4. Environmental and Regulatory Considerations
Environmental Impact:
Volatile; may contribute to air pollution if not properly contained
Avoid release into waterways to prevent aquatic toxicity
Regulatory Compliance:
Registered under EU REACH and US TSCA
Transport: UN 1245, Class 3 (flammable liquid), Packing Group II
5. Case Studies and Application Insights
Coatings Industry:
Improves leveling and drying time in high-performance paints
Adhesive Manufacturing:
Acts as a solvent for resin formulations, enhancing tack and adhesion properties
Comparison with Alternatives:
Offers lower evaporation rate than acetone but higher flash point than some ketone solvents
Balances performance, handling safety, and cost for industrial applications