Product Name: 1-Ethyl-3-Methylimidazolium Acetate
Synonyms: EMIM Acetate
Chemical Formula: C8H14N2O2
CAS Number: 143314-17-4
Manufacturer: Common suppliers include Sigma-Aldrich and other chemical distributors.
Recommended Use: Solvent, ionic liquid, cellulose processing, extraction.
Emergency Contact: Refer to supplier’s details or company responsible for workplace safety.
Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Acute toxicity oral (Category 4).
GHS Label Elements: Pictogram for exclamation mark, Signal Word "Warning."
Hazard Statements: Causes skin and serious eye irritation, harmful if swallowed.
Precautionary Statements: Wear gloves, eye protection, and use only with adequate ventilation.
Routes of Exposure: Dermal, ingestion, inhalation.
Potential Health Effects: Direct contact with eyes leads to pain and redness, prolonged skin contact often causes redness or swelling, ingestion irritates the digestive tract, inhaling vapors can trigger headache or nausea in poorly ventilated spaces.
Chemical Name: 1-Ethyl-3-Methylimidazolium Acetate
Concentration: > 98%
CAS Number: 143314-17-4
Additives or Impurities: Commercial products rarely contain significant stabilizers or additives.
General Advice: Move the affected person from exposure source immediately.
Inhalation: Move to fresh air. Seek medical attention if symptoms develop.
Skin Contact: Remove contaminated clothing, rinse skin with water for 15 minutes, seek medical care if irritation develops.
Eye Contact: Flush eyes with running water for at least 15 minutes lifting upper and lower eyelids. Immediate medical attention is recommended.
Ingestion: Rinse mouth thoroughly with water; do not induce vomiting; contact medical help.
Notes to Physician: Treat symptomatically and provide supportive care.
Extinguishing Media: Use foam, water mist, dry powder, or carbon dioxide.
Combustion Products: Produces carbon oxides, nitrogen oxides, and other potentially toxic fumes when burning.
Special Protective Equipment: Firefighters should wear full protective gear with self-contained breathing apparatus.
Fire Hazards: Not highly flammable; however, thermal decomposition can release irritating gases.
Precautions for Fire-Fighters: Tackle fire upwind, contain runoff to prevent environmental contamination.
Personal Precautions: Wear chemical-resistant gloves and safety goggles, ventilate the area, avoid breathing vapors.
Environmental Precautions: Prevent spillage from entering drains or waterways.
Cleanup Methods: Use inert absorbent material (sand, soil, or vermiculite) to contain liquid. Sweep up, scoop into labelled waste containers, and wash area with water.
Reference to Other Sections: Follow local and national regulations for chemical spills and waste.
Safe Handling: Use only with adequate ventilation, avoid direct contact with skin and eyes, do not eat or drink where material is handled.
Storage Conditions: Store in a tightly-closed container, keep away from heat sources, strong acids, oxidizing agents.
Packaging Materials: Use containers made of compatible materials like glass or certain plastics, clearly label containers.
Incompatibilities: Strong oxidizers, strong acids, moisture over prolonged storage.
Engineering Controls: Work in well-ventilated areas, use fume hoods for laboratory manipulation.
Eye Protection: Safety goggles with side shields or face shield as necessary.
Skin Protection: Chemical-resistant gloves (nitrile or neoprene), protective clothing.
Respiratory Protection: If ventilation is insufficient, use a NIOSH/MSHA approved respirator.
Other Protection: Wash hands after use, avoid touching face, eye wash stations and safety showers easily accessed.
Appearance: Colorless to pale yellow liquid.
Odor: Mild, vinegar-like.
pH: Neutral to slightly basic in aqueous solution.
Melting Point: Approximately −20°C.
Boiling Point: Decomposes before boiling above 200°C.
Density: Around 1.1 g/cm³ at 25°C.
Water Solubility: Fully miscible.
Viscosity: High compared to traditional solvents, typical for ionic liquids.
Vapor Pressure: Low.
Partition Coefficient: Not easily available, but ionic nature suggests low bioaccumulation.
Auto-ignition Temperature: Not determined.
Chemical Stability: Stable under recommended storage and handling conditions.
Reactivity: Reacts with strong oxidizing agents to produce hazardous byproducts.
Conditions to Avoid: Moisture exposure, excess heat, incompatible chemicals.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, other toxic gases when burned or heated.
Polymerization: No hazardous polymerization expected.
Acute Oral Toxicity: Estimated LD50 (rat) 3,500 mg/kg.
Acute Dermal Toxicity: No reliable data, but not considered highly toxic.
Skin Irritation: Causes irritation and possible dermatitis after prolonged contact.
Eye Irritation: Causes moderate to severe irritation.
Inhalation: Lack of volatility minimizes risk, but vapor under heat may affect respiratory tract.
Chronic Effects: No long-term studies reported in humans.
Carcinogenicity: No data available; not classified by IARC, NTP, or OSHA.
Mutagenicity: Limited data, not classified as a mutagen.
Reproductive Effects: Not known.
Ecotoxicity: Data limited, some ionic liquids exhibit toxicity to aquatic organisms; minimize environmental release.
Persistence and Degradability: Slow to break down; ionic liquids tend to persist in the environment relative to volatile solvents.
Bioaccumulative Potential: Typically low due to ionic nature, but not fully researched.
Mobility in Soil: High due to good water solubility and low vapor pressure.
Other Adverse Effects: Not fully studied; disposal practices should account for incomplete toxicity profiles.
Waste Disposal Methods: Collect residues and contaminated materials in tightly sealed containers for chemical waste disposal.
Disposal of Packaging: Decontaminate then recycle or discard as hazardous waste per local requirements.
Special Precautions: Do not pour down the drain or mix with landfill destined trash.
Regulations: Dispose according to local, regional, and national legislation.
UN Number: Not regulated in most jurisdictions for transport.
Proper Shipping Name: Not classified as dangerous goods.
Transport Hazard Class: Not regulated.
Packing Group: Not regulated.
Special Precautions for Users: Avoid spillage and damage to packaging; transport in upright, secure containers.
Safety, Health, and Environmental Regulations: Not listed as a controlled substance by most major chemical regulations (TSCA, REACH), not subject to specific workplace exposure limits.
Labeling Requirements: GHS label elements and precautionary statements required.
SARA Title III Sections 302/304/313: Not subject to reporting.
California Proposition 65: Not listed.
Canadian WHMIS: Not classified.
Potential Restrictions: Lab or workplace-specific handling standards dictate additional rules.
