Product Name: 1-Allyl-3-Methylimidazolium Acetate
Chemical Formula: C9H14N2O2
CAS Number: 65501-24-8
Synonyms: AMIM Ac, 1-Allyl-3-methylimidazolium ethanoate
Recommended Use: Solvent, cellulose dissolution, ionic liquid research
Manufacturer Contact: Emergency phone number: Refer to vendor or overseeing regulatory agency
Supplier Details: Refer to purchasing documentation
GHS Classification: Acute Toxicity (Category 4), Skin/Irritation (Category 2), Eye Irritation (Category 2A)
Signal Word: Warning
Hazard Statements: Harmful if swallowed; causes skin and eye irritation
Pictograms: Exclamation mark (irritant)
Precautionary Statements: Avoid breathing dust/fume/mist/vapors/spray; wash thoroughly after handling; do not eat, drink or smoke during use; wear protective gloves, clothing, eye/face protection; if in eyes, rinse cautiously with water for several minutes; if on skin, wash with plenty of water; remove contaminated clothing and wash it before reuse
Chemical Identity: 1-Allyl-3-Methylimidazolium Acetate
Concentration: ≥95% by weight
Impurities: Trace levels of related imidazolium compounds, moisture less than 1%
Molecular Weight: 182.22 g/mol
Inhalation: Move person to fresh air, seek immediate medical attention if symptoms develop such as coughing or difficulty breathing
Skin Contact: Remove contaminated clothing, wash thoroughly with water and soap, seek medical advice if irritation persists
Eye Contact: Rinse cautiously with plenty of water for at least 15 minutes, remove contact lenses if easy to do, continue rinsing and get medical attention
Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, seek medical advice
Notes to Physician: Symptomatic and supportive treatment as required, monitor for delayed effects
Suitable Extinguishing Media: Use water spray, foam, dry chemical or carbon dioxide
Specific Hazards: May emit toxic fumes such as nitrogen oxides and acetic acid when burned
Protective Equipment for Fire-Fighters: Use self-contained breathing apparatus and full protective gear; avoid inhalation of combustion gases
Special Procedures: Cool containers exposed to fire with water spray to prevent pressure build-up and explosive rupture
Personal Precautions: Wear protective clothing, gloves, and safety goggles; avoid breathing vapors or contact with skin and eyes
Environmental Precautions: Prevent material from entering sewers or water systems; alert authorities if large spills occur
Cleanup Methods: Absorb spill with inert material like sand or vermiculite, collect and place in suitable container for disposal; ventilate area; wash contaminated area thoroughly
Decontamination: Wash area with water and detergent, dispose of cleaning materials in accordance with regulatory requirements
Handling: Avoid direct contact with substance, use only in well-ventilated areas; do not eat, drink, or smoke while working with this material; wash hands after use
Storage Conditions: Store in tightly closed containers in a cool, dry, and well-ventilated area; keep away from incompatible materials such as oxidizers and acids; avoid storage at elevated temperatures or under direct sunlight
Storage Stability: Maintain temperature between 2–8°C for best product stability; protect from moisture and air exposure
Occupational Exposure Limits: No specific occupational exposure limits established by OSHA, NIOSH, ACGIH or other major bodies
Engineering Controls: Use local exhaust or general dilution ventilation to control airborne concentrations
Personal Protection: Wear safety goggles, chemical resistant gloves (nitrile or neoprene), lab coat or protective clothing; use appropriate respiratory protection if exposure limits are unknown or exceeded
Hygiene Measures: Wash hands after handling; remove and wash contaminated clothing before reuse
State: Liquid (at room temperature)
Color: Colorless to slightly yellow
Odor: Slight vinegar-like (acetic), mild, not overpowering
pH: Approximately 6.5–8 (for a 1 molar aqueous solution)
Melting Point: -20°C to -10°C
Boiling Point: Decomposes above 150°C
Flash Point: >150°C (closed cup)
Solubility: Miscible with water, soluble in organic solvents such as ethanol and methanol
Vapor Pressure: Negligible at room temperature
Density: 1.07–1.12 g/cm³
Viscosity: Moderate, higher than water at room temperature
Chemical Stability: Stable under recommended storage and handling conditions
Incompatible Materials: Strong oxidizers, strong acids, materials sensitive to acids or bases
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide, acetic acid fumes
Polymerization: Not known to occur under normal storage and use
Conditions to Avoid: Excessive heat, exposure to light, sources of ignition, contact with incompatible chemicals
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Effects: Harmful if swallowed; causes skin and eye irritation; may affect respiratory tract if inhaled at high concentrations
Chronic Effects: Prolonged or repeated exposure may lead to dermatitis, sensitization, or respiratory discomfort
Toxicity Data: Oral LD50 (rat): >2000 mg/kg; data for skin and inhalation toxicity limited
Other Effects: No evidence of carcinogenicity, mutagenicity, or reproductive toxicity in available data
Aquatic Toxicity: Contains ionic liquid components that may pose risks to aquatic organisms if released to water bodies; toxicity values for Daphnia magna and fish not fully established
Mobility: Miscible with water, may spread rapidly in aquatic environments
Persistence and Degradability: Moderate inherent biodegradability; may persist under some environmental conditions
Bioaccumulation: Potential to bioaccumulate considered low, but insufficient long-term environmental data published
Other Environmental Effects: Avoid uncontrolled release to soil, surface water, or groundwater
Disposal Methods: Incinerate in chemical incinerator equipped with afterburner and scrubber; dispose of in accordance with local, regional, and national regulations
Contaminated Packaging: Empty containers may contain residues; treat as hazardous waste; clean thoroughly before disposal or reuse
Special Precautions: Avoid disposal to environment, do not pour down drain or into any body of water
UN Number: Not regulated for most forms of transport, consult specific shipment needs for classification
Transport Hazard Class: Not classified as hazardous by international transport regulations (ADR, IMDG, IATA)
Packing Group: Not assigned
Labels: No labeling required under GHS for transport, but recommend clear identification to handlers
Additional Transport Precautions: Avoid shipment with incompatible substances; secure containers to minimize leaks or spills
Inventory Listings: May be listed on TSCA (US), EINECS (EU), DSL (Canada) depending on purity and intended use
Regulation Applicability: Subject to workplace safety and environmental protection rules; chemical hygiene plans should address handling in laboratory, pilot, or industrial settings
Other Regulations: Not classified as a carcinogen, not flagged under SARA Title III or CERCLA as a hazardous substance in the US; check local requirements in jurisdiction of use
