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Chemical Name: Ethylacetoacetate
Synonyms: Acetoacetic acid, ethyl ester
Molecular Formula: C6H10O3
CAS Number: 141-97-9
Common Uses: Organic synthesis, pharmaceuticals, dyes, flavoring agents
Physical State: Colorless liquid
Main Hazards: Flammable, eye irritation, skin irritation, inhalation risks, potential narcotic effects with high exposure
Signal Word: Warning
Primary Hazard Icons: Flammable liquid, irritant
Routes of Exposure: Skin, eyes, inhalation, ingestion
Short-Term Health Effects: Headache, dizziness, nausea if inhaled; redness and discomfort if in contact with eyes or skin
Environmental Hazard: Harmful to aquatic life with long-lasting effects
Main Ingredient: Ethylacetoacetate (Concentration: typically >99%)
Impurities: Trace organic contaminants from manufacturing residues
Inhalation: Move the person to fresh air, keep at rest, monitor breathing
Skin Contact: Remove contaminated clothing, wash thoroughly with soap and water
Eye Contact: Rinse carefully with plenty of water for several minutes, seek attention if irritation persists
Ingestion: Rinse mouth, seek medical advice, never give liquid to an unconscious person
Note for Responders: Provide respiratory support if symptoms persist or worsen
Suitable Extinguishers: Foam, dry powder, carbon dioxide, water fog, never use direct water jet
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, irritating fumes
Special Firefighting Procedures: Wear self-contained breathing gear and chemical protective clothing
Fire/Explosion Hazards: Vapors can travel to source of ignition; containers may explode if heated
Personal Precaution: Evacuate unnecessary personnel, use protective gloves and eye protection
Environmental Precaution: Prevent spillage from reaching waterways or sewers
Spill Control: For small spills, absorb onto inert material such as sand. For larger spills, contain and collect for disposal
Clean-Up Methods: Wash area with water, ventilate, dispose according to local regulations
Handling: Use in well-ventilated spaces, avoid contact with skin and eyes, keep away from flames and sparks, ground all equipment
Storage Conditions: Store in tightly closed containers in a cool, dry, well-ventilated area
Storage Incompatibles: Acids, strong oxidizers, bases, reducing agents
Packaging Material: Keep in original container, away from direct sunlight and ignition sources
Engineering Controls: Extraction ventilation or local exhaust recommended
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, long-sleeved clothing
Respiratory Protection: Use a respirator if ventilation is inadequate or during large-scale use
Hygiene Measures: Avoid eating, drinking, and smoking near the work area, wash hands after handling
Occupational Exposure Limits: Not specifically established, follow general organic solvent exposure recommendations
Appearance: Clear to pale yellow liquid
Odor: Fruity, pleasant aromatic scent
Boiling Point: Around 180°C
Melting Point: -44°C
Flash Point: 79°C (closed cup)
Vapor Pressure: Low at ambient temperatures
Solubility: Slightly soluble in water, mixes easily with ethanol and ether
Relative Density: About 1.03 g/cm³ at 20°C
Viscosity: Low viscosity, flows easily
Chemical Stability: Stable under normal handling and storage
Reactivity Risks: May react with strong oxidizing agents or bases, releasing heat and irritating vapors
Decomposition Products: Carbon monoxide, carbon dioxide, potentially irritating organic compounds
Conditions to Avoid: Open flames, prolonged exposure to heat, direct sunlight
Acute Toxicity: LD50 (oral, rat) estimated at 750 mg/kg or higher
Potential Effects: Eye and skin irritation, respiratory distress at high vapor concentrations
Chronic Effects: Prolonged skin contact may cause dermatitis
Sensitization: Not classed as a skin sensitizer
Mutagenicity/Carcinogenicity: No evidence found in typical industrial exposure or animal studies
Degradability: Breaks down reasonably fast in soil and water under aerobic conditions
Aquatic Toxicity: Mild toxicity to fish and invertebrates
Bioaccumulation: Low potential for bioaccumulation in aquatic organisms
Mobility in Soil: Stays mainly in the water phase, less likely to bind to soil particles
Disposal Method: Send to licensed chemical waste facility or incinerate under controlled conditions
Special Precautions: Avoid release into sewer or surface water drains
Packaging Disposal: Decontaminate containers before recycling or disposal, follow regional waste regulations
UN Number: Classified under flammable liquids group
Transport Label: Flammable Liquid
Packing Group: III (Moderate hazard)
Hazard Class: 3 (Flammable liquids)
Transport Considerations: Secure containers upright, keep cool during transit, avoid rough handling
Labeling Requirements: Marked as a hazardous chemical under workplace safety rules in various regions
Reportable Quantity: Comply with national rules for storing and using flammable chemicals
Globally Harmonized System: Assigned hazard pictograms and warning phrases for workplace safety
Other Notes: Not listed as a controlled substance or specifically regulated carcinogen
