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Methyl Ethyl Ketone
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Methyl Ethyl Ketone, also known as Butanone, is a clear, colorless liquid with a sharp, sweet odor. It is a highly effective solvent widely used in industrial processes due to its excellent solvency, fast evaporation rate, and compatibility with a wide range of substances. MEK is commonly used in coatings, adhesives, printing inks, and cleaning formulations.
Description
Methyl Ethyl Ketone
Primary Uses
- Coatings and Paints
- Solvent in lacquers, varnishes, and paints to improve application and drying.
- Enhances film formation and gloss.
- Adhesives and Sealants
- Used as a solvent in adhesives, particularly for bonding plastics and rubber.
- Printing Inks
- Serves as a solvent to improve ink flow and drying characteristics.
- Cleaning and Degreasing
- Effective solvent for cleaning metal surfaces and removing grease and oil.
Secondary Uses
- Chemical Intermediate
- Used in the synthesis of pharmaceuticals, pesticides, and other chemicals.
- Laboratory Reagent
- Applied as a solvent in analytical and synthetic laboratory procedures.
- Plastics and Rubber Processing
- Utilized as a solvent in polymer coatings and rubber cements.
KEY PRODUCT FEATURES
Key Attributes
Basic Identification Attributes
- Chemical Name (IUPAC): Butan-2-one
- Common/Trade Name: Methyl Ethyl Ketone (MEK)
- CAS Number: 78-93-3
- HS Code: 2914.12.00
- Synonyms: Butanone; MEK; Ethyl methyl ketone
Physical & Chemical Properties
- Physical State: Liquid
- Color & Odor: Colorless; sharp, sweet, ketone-like odor
- Boiling Point: 79.6°C
- Melting Point: -86°C
- Flash Point: -4°C (closed cup)
- Density: 0.805 g/cm³ at 20°C
- Solubility: Miscible with water and most organic solvents
Safety & Hazard Attributes
- GHS Classification: Flammable liquid, Category 2; Serious eye irritation, Category 2
- Toxicity: Moderate toxicity; avoid ingestion and prolonged exposure
- Exposure Limits: OSHA PEL - 200 ppm; ACGIH TLV - 200 ppm
Storage & Handling Attributes
- Storage Conditions: Store in a cool, well-ventilated area away from heat and ignition sources
- Container Type: Supplied in metal drums, plastic containers, or bulk tanks designed for flammable liquids
- Shelf Life: Stable under proper storage conditions for several years
- Handling Precautions: Use explosion-proof equipment; avoid inhalation and skin contact; wear appropriate PPE
Regulatory & Compliance Attributes
- Complies with international chemical safety standards and regulations (e.g., REACH, OSHA)
- Listed on major chemical inventories worldwide
Environmental & Health Impact
- Biodegradability: Readily biodegradable
- Ecotoxicity: Low to moderate environmental impact
- Bioaccumulation: Low potential for bioaccumulation
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
- PPE Required: Chemical-resistant gloves, safety goggles, and flame-resistant clothing recommended
- Handling Guidelines: Use in well-ventilated areas; prevent vapor accumulation; ground and bond containers during transfer
- Storage Measures: Keep containers tightly closed and away from incompatible substances
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if breathing difficulties occur
- Skin Contact: Remove contaminated clothing; wash skin thoroughly with soap and water
- Eye Contact: Rinse eyes with water for at least 15 minutes; seek medical attention if irritation persists
- Ingestion: Do not induce vomiting; seek immediate medical assistance
Firefighting Measures
- Fire Hazards: Highly flammable liquid and vapor
- Extinguishing Media: Use alcohol-resistant foam, dry chemical, or carbon dioxide extinguishers
- Special Precautions: Evacuate area; wear full protective equipment and self-contained breathing apparatus
- Hazardous Combustion Products: May produce carbon monoxide, carbon dioxide, and other toxic gases under fire conditions
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