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.

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Category: Additives Tags: Anti-skinning agent, Coating stabilizer, MEKO, Methyl Ethyl Ketoxime, Paint Additive

Description

Table of Contents

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

1. 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

2. 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

3. 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

4. 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

5. Regulatory & Compliance Attributes

Complies with international chemical safety standards and regulations
Registered under relevant chemical inventories (e.g., REACH)

6. 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