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Methyl Ethyl Ketoxime
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Methyl Ethyl Ketoxime is a clear, colorless to pale yellow liquid with a mild, characteristic odor. It is primarily used as a polymerization inhibitor and anti-skinning agent in coatings and paints, preventing premature curing during storage. MEKO is valued for its effectiveness in protecting alkyd and other resin-based coatings and enhancing shelf life.
Description
Methyl Ethyl Ketoxime
Primary Uses
- Paints and Coatings
- Acts as an anti-skinning agent to prevent formation of skin on paint surfaces during storage.
- Used as a polymerization inhibitor in alkyd, acrylic, and other resin-based coatings.
- Adhesives and Sealants
- Prevents premature curing and gelling during storage.
- Chemical Intermediate
- Used in the manufacture of various chemicals and resins.
Secondary Uses
- Printing Inks
- Helps stabilize ink formulations by inhibiting unwanted polymerization.
- Rubber and Plastics
- Acts as a stabilizer in some polymerization processes to control molecular weight and polymer properties.
KEY PRODUCT FEATURES
Key Attributes
Basic Identification Attributes
- Chemical Name (IUPAC): (E)-N-Hydroxy-1-methylbutan-2-imine
- Common/Trade Name: Methyl Ethyl Ketoxime (MEKO)
- CAS Number: 96-29-7
- HS Code: 2921.42.00
- Synonyms: MEKO; methyl ethyl ketone oxime; 2-Butanone oxime
Physical & Chemical Properties
- Physical State: Liquid
- Color & Odor: Clear to pale yellow; mild characteristic odor
- Boiling Point: 132°C
- Melting Point: -38°C
- Flash Point: 65°C (closed cup)
- Density: 0.904 g/cm³ at 20°C
- Solubility: Slightly soluble in water; miscible with most organic solvents
Safety & Hazard Attributes
- GHS Classification: Flammable liquid, Category 4; Acute toxicity (oral), Category 4; Skin irritation, Category 2
- Toxicity: Moderate toxicity; avoid ingestion, inhalation, and skin contact
- Exposure Limits: No widely established limits; follow general chemical safety guidelines
Storage & Handling Attributes
- Storage Conditions: Store in a cool, well-ventilated place away from heat, sparks, and open flames
- Container Type: Supplied in sealed metal or plastic containers
- Shelf Life: Stable under proper storage conditions for up to 2 years
- Handling Precautions: Use protective gloves and eye protection; avoid inhalation of vapors
Regulatory & Compliance Attributes
- Complies with international chemical safety standards and regulations
- Registered under relevant chemical inventories (e.g., REACH)
Environmental & Health Impact
- Biodegradability: Biodegradable under suitable conditions
- Ecotoxicity: Low environmental impact if used as directed
- Bioaccumulation: Not expected to bioaccumulate
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
- PPE Required: Chemical-resistant gloves, safety goggles, and protective clothing recommended
- Handling Guidelines: Use in well-ventilated areas; prevent vapor accumulation
- Storage Measures: Keep containers tightly closed and stored away from incompatible substances
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if respiratory irritation or distress occurs
- Skin Contact: Wash thoroughly with soap and water; seek medical advice if irritation develops
- Eye Contact: Rinse eyes with plenty of 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: Combustible liquid
- Extinguishing Media: Use foam, dry chemical, or carbon dioxide extinguishers
- Special Precautions: Wear full protective equipment and self-contained breathing apparatus
- Hazardous Combustion Products: May produce nitrogen oxides, carbon oxides, and other toxic gases during fire
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