Chemical Name: 1-Methoxyethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide
Synonyms: [EMIM][Tf2N], Ionic Liquid, 1-Methoxyethyl-3-methylimidazolium bistriflimide
CAS Number: 923072-47-1
Recommended Use: Laboratory research, energy applications, electrochemistry, solvent, catalyst systems
Supplier: Industrial chemicals suppliers, fine chemical providers
Contact Information: Telephone, email, and emergency straight to facility or Poison Control
GHS Classification: Skin Irritation Category 2, Eye Irritation Category 2A
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may be harmful if swallowed, possible ecological hazard for aquatic organisms
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust/fume/gas/mist/vapors/spray, wash thoroughly after handling, use personal protective equipment as required
Chemical Identity: 1-Methoxyethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)imide
Concentration: >98%
Impurities/Additives: Water, trace organic solvents (usually <1%)
Molecular Formula: C9H15F6N3O5S2
Molecular Weight: 427.36 g/mol
Inhalation: Get person to fresh air, seek medical advice if symptoms like coughing, shortness of breath, or dizziness occur
Skin Contact: Remove contaminated clothing, wash skin with soap and plenty of water for several minutes, medical attention for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy, continue rinsing, get prompt medical care for discomfort, redness, or visual disturbance
Ingestion: Rinse mouth with water, never induce vomiting unless instructed by medical professional, consult poison control or doctor for symptoms such as nausea or abdominal pain
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, carbon dioxide
Unsuitable Media: Avoid high-pressure water streams (may spread material)
Hazardous Decomposition: Carbon oxides, sulfur oxides, nitrogen oxides, hydrogen fluoride, trifluoromethane, imidazole derivatives
Protective Equipment: Firefighters equipped with self-contained breathing apparatus and chemical protective clothing, use in well-ventilated area
Specific Hazards: Container may rupture under fire conditions due to pressure build-up, toxic gases may evolve in fire scenario
Personal Precautions: Evacuate and ventilate area, avoid breathing vapors, prevent skin and eye contact, use gloves, goggles, respirator if needed
Containment: Stop release if safe to do so, contain spill with inert absorbent (vermiculite, sand)
Cleanup Methods: Collect in sealable, labeled containers for disposal, clean contaminated surfaces with soap and water, dispose according to local regulations
Environmental Precautions: Prevent spill from reaching watercourses, drains, or soil, notify authorities if contamination occurs
Precautions for Handling: Work in fume hood or well-ventilated area, avoid inhaling dust, mist, or vapor, practice good hygiene, wash hands after handling
Safe Storage Conditions: Store in cool, dry, ventilated area away from direct sunlight, heat sources, or ignition points, keep container tightly closed
Incompatible Materials: Strong oxidizers, acids, strong bases, moisture-sensitive chemicals
Transfer Procedures: Use non-sparking tools, protect containers from physical damage, avoid static discharge
Occupational Exposure Limits: No established limits for baseline ionic liquids, but handle in line with best chemical hygiene practices
Engineering Controls: Use chemical fume hood, local exhaust, safety showers and eyewash stations readily available
Personal Protective Equipment: Wear impervious gloves, safety goggles, lab coat, closed shoes, respirator for dust or vapor exposure
Hygiene Measures: Wash thoroughly before eating, drinking, or smoking, do not wear contaminated clothing outside of work
Appearance: Colorless to pale yellow liquid
Odor: Mild ether or solvent-like odor
pH: Not applicable (neat), but solutions may be slightly acidic
Melting Point: -16 °C to 24 °C
Boiling Point: >300 °C (decomposes)
Flash Point: >190 °C (closed cup)
Vapor Pressure: Extremely low (<1 Pa at 25 °C)
Solubility: Miscible with most organic solvents, sparingly soluble in water
Density: About 1.45–1.56 g/cm³ at 20 °C
Viscosity: 30–60 cP at 25 °C
Chemical Stability: Stable under recommended storage conditions, sensitive to strong acids and bases
Reactivity: Avoid contact with strong oxidizing agents, alkali metals, moisture
Hazardous Decomposition Products: Thermal degradation releases noxious gases (CO, SOx, NF3, imidazole derivatives)
Polymerization: Not likely under normal conditions
Acute Toxicity: Data based on similar ionic liquids suggest mild to moderate toxicity to mammals, LD50 (oral, rat) > 2,000 mg/kg
Skin/Eye Irritation: Can cause burns or irritation on contact
Inhalation: Prolonged exposure to vapors or mists may irritate respiratory tract
Chronic Effects: Not well-studied, repeated exposure may lead to dermatitis or respiratory sensitivity
Carcinogenicity/Mutagenicity/Reproductive Toxicity: Not classified as carcinogen, mutagen or reproductive toxin, limited testing data available
Environmental Impact: May persist in environment, low volatility, can bioaccumulate in aquatic organisms
Aquatic Toxicity: Harmful for aquatic organisms, EC50 (daphnia, algae, fish) typically between 10–100 mg/L
Degradation: Slowly biodegradable, dissociation products can linger in water and soil
Mobility: Likely to partition to soil and sediment; low potential for evaporation
Precautions: Avoid release into environment, follow spill containment protocols
Waste Handling: Collect waste in labeled, sealable containers, avoid mixing with general trash
Treatment: Preferred method is incineration at licensed facilities, controlled landfill if local regulation allows, never dispose in sink or drains
Contaminated Containers: Triple rinse, puncture, and dispose as hazardous chemical waste
Regulatory Compliance: Observe all local, regional, national, and international regulations regarding waste management of ionic liquids
UN Number: Not classified as hazardous for transport under UN, ADR, IATA, or IMDG codes
Proper Shipping Name: Not regulated
Transport Hazard Class: Not assigned
Packing Group: Not assigned
Special Transport Requirements: Keep tightly sealed, upright; prevent leakage; avoid overheating during transit
Environmental Hazards: Not a Marine Pollutant under IMDG, but accidental releases during transit can threaten aquatic systems
Global Inventory Status: May appear on TSCA, EINECS/ELINCS, AICS, other regional registers
OSHA: No specific standard, handle as laboratory chemical under OSHA Laboratory Standard
REACH: Pre-registered or notified in Europe; not classified as SVHC
Other Regulations: Not classified as carcinogen under IARC, NTP, ACGIH, or OSHA
Labeling Requirements: GHS label elements, compliant pictograms, precautionary and hazard statements on all containers
Safety Assessment: Risk assessment by local chemical safety or environmental health professionals is advisable before workplace use
