Product Name: 1,3-Dimethylimidazolium Acetate
Chemical Formula: C7H12N2O2
CAS Number: 64736-09-0
Synonyms: [EMIM][Ac], 1,3-Dimethyl-1H-imidazol-3-ium acetate
Recommended Use: Solvent for cellulose dissolution, chemical research, ionic liquid applications
Manufacturer: Registered specialist chemical supplier
Emergency Phone: Refer to local poison control center or local emergency services
GHS Classification: Not classified as hazardous under GHS criteria
Hazard Statements: May cause skin or eye irritation, may cause slight respiratory discomfort and gastrointestinal upset from ingestion
Signal Word: Warning
Precautionary Statements: Avoid skin and eye contact, avoid inhaling vapor or mist, wash hands after handling, use PPE when necessary
Hazard Symbols: None officially required under current schemes, though local regulations may differ
Chemical Identity: 1,3-Dimethylimidazolium Acetate
Concentration: >98% purity
Impurities: Residual imidazole, trace organic acids
Additional Components: No other significant ingredients present
Molecular Weight: 156.18 g/mol
Inhalation: Move to fresh air, support breathing; seek medical advice for persistent symptoms
Skin Contact: Wash thoroughly with soap and water; remove contaminated clothing
Eye Contact: Rinse cautiously with water for at least 15 minutes; remove contact lenses
Ingestion: Rinse mouth, seek medical help if symptoms develop; never induce vomiting unless directed
Symptoms: Mild irritation of exposed tissues, redness in eyes or on skin, possible cough or nausea
Suitable Extinguishing Media: Water spray, carbon dioxide, dry chemical, foam
Unsuitable Extinguishing Media: Direct water stream on burning material
Special Hazards: Non-flammable, but may decompose under high heat to give off irritating or toxic vapors (e.g., nitrogen oxides, carbon oxides)
Protective Equipment: Firefighters use self-contained breathing apparatus and chemical-resistant clothing
Precautions: Minimize runoff from extinguishing efforts, ventilate area after incident
Personal Precautions: Wear gloves, goggles, protective clothing; avoid breathing vapors
Environmental Precautions: Prevent entry into sewers, waterways, or soil
Spill Cleanup Methods: Absorb with inert material (sand, vermiculite), sweep up, and collect for proper disposal
Decontamination: Wash area with soap and water after removal, ventilate zone
Handling: Use in well-ventilated spaces, avoid prolonged or repeated contact with skin and eyes, keep away from incompatible materials like strong oxidizers and acids
Storage: Store in a tightly closed container, keep in a dry, cool, well-ventilated place, protect from freeze-thaw cycles
Storage Temperature: Recommended between 2°C to 30°C
Other Information: Label containers clearly, segregate from food and drink, inspect regularly for leaks or degradation
Exposure Limits: No specific occupational exposure limits established yet
Engineering Controls: Work under fume hood or in area with local exhaust ventilation
Respiratory Protection: Use NIOSH/MSHA-approved mask if vapor or spray mist forms
Hand Protection: Chemical-resistant gloves (nitrile, neoprene)
Eye Protection: Safety goggles or face shield
Skin Protection: Long sleeves, protective clothing
Hygiene Measures: Wash hands and any exposed skin before eating, drinking, or smoking; change out of contaminated clothing promptly
Appearance: Colorless to yellow liquid
Odor: Faintly acidic or ammonia-like
pH: About 6.0–7.0 (20% solution in water)
Melting Point: -20°C to -10°C
Boiling Point: Decomposes before boiling
Flash Point: Not flammable
Vapor Pressure: Negligible at ambient temperature
Solubility: Miscible with water and many organic solvents
Density: 1.1–1.2 g/cm³ at 25°C
Viscosity: 70–150 cP at 25°C
Decomposition Temperature: Above 200°C
Chemical Stability: Stable under recommended handling and storage conditions
Conditions to Avoid: Strong oxidizers, strong acids, elevated temperatures
Hazardous Reactions: Can react with strong oxidants producing hazardous gases
Incompatible Materials: Avoid mixing with reactive metals, strong acids/bases
Hazardous Decomposition: Nitrogen oxides, carbon monoxide, acetic acid fumes, other organic vapors
Acute Toxicity: Oral LD50 (rat) expected >2,000 mg/kg (low acute toxicity)
Skin Corrosion/Irritation: Mildly irritating, not expected to cause severe injury
Eye Damage/Irritation: May cause redness and discomfort upon exposure
Respiratory Sensitization: No known reports in humans or animals
Carcinogenicity: Not listed by IARC, NTP, OSHA as carcinogen
Mutagenicity: No data indicating positive mutagenic effects
Other Information: Overexposure can increase risk of organ irritation in susceptible individuals
Eco-toxicity: Low-to-moderate hazard for aquatic life, no bioaccumulation expected
Persistence & Degradability: Biodegradability slow; breaks down over several weeks under active microbial conditions
Mobility in Soil: High solubility, may migrate in moist soils
Bioaccumulative Potential: Potential considered low, not likely to persist in biological tissues
Other Effects: Avoid release to environment; long term contamination could affect aquatic ecosystems
Waste Treatment: Dispose through licensed hazardous waste contractor
Disposal Methods: Do not pour down drain, incinerate at approved facilities
Special Precautions: Keep waste containers closed, clearly label contents, comply with local and national regulations
Advice: Never reuse empty containers, triple rinse before disposal if allowed
UN Number: Not regulated as hazardous for transport
Transport Hazard Class: Not classified
Packing Group: Not assigned
Shipping Name: 1,3-Dimethylimidazolium Acetate
Environmental Hazards: Not a marine pollutant
Special Precautions for Transport: Secure upright, avoid extreme temperatures, ship in approved chemical containers
TSCA (US): Listed or meets regulatory exemption
REACH (EU): Registration or notification may apply, consult supplier
OSHA (US): Not specifically listed as hazardous
WHMIS (Canada): Not classified for hazard communication standards
SARA Title III: Not listed as an extremely hazardous chemical
Other Regulations: Users must comply with all applicable chemical safety, storage, and transportation regulations
