Chemical Name: N-Methylimidazolium Trifluoromethanesulfonate
Synonyms: 1-Methylimidazolium Triflate, [Hmim][OTf]
CAS Number: 206534-18-1
Product Use: Laboratory reagent, ionic liquid applications, catalyst,
Manufacturer: Contact supplier for details
Emergency Phone: Provided by supplier
Recommended Restrictions: Not for food, drug, or household use
GHS Classification: Skin irritation Category 2, Eye irritation Category 2A
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause respiratory tract irritation
Pictograms: Exclamation mark
Precautionary Statements: Wash skin thoroughly after handling. Wear protective gloves, eye protection, face protection. Avoid breathing dust, fume, gas, mist, vapors, spray. Use only outdoors or in a well-ventilated area.
Potential Health Effects: Skin contact may lead to redness or discomfort; eyes exposed to liquid or vapor display irritation and watering; inhalation may trigger coughing, labored breathing; ingestion not intended, but irritation and nausea may follow accidental swallowing
Chemical Identity: N-Methylimidazolium Trifluoromethanesulfonate
Common Name: [Hmim][OTf]
CAS Number: 206534-18-1
Concentration: ≥98%
Impurities: Residual water (<1%), trace by-products from synthesis
Eye Contact: Remove contact lenses if present, rinse eyes with plenty of water for at least fifteen minutes, keep eyelids open, seek medical advice immediately
Skin Contact: Remove contaminated clothing, wash exposed skin with soap and water, do not reuse clothing until cleaned
Ingestion: Rinse mouth thoroughly with water, do not induce vomiting, call a physician or poison control immediately
Inhalation: Move person to fresh air, provide oxygen if breathing is difficult, seek prompt medical attention if symptoms persist
Note for Physician: Treat symptomatically based on patient response, observe for delayed symptoms due to chemical irritation
Suitable Extinguishing Media: Use dry chemical, foam, carbon dioxide, or water spray for small fires. Do not use direct water jet.
Specific Hazards: Decomposition releases toxic fumes of carbon monoxide, carbon dioxide, nitrogen oxides, sulfur oxides, hydrogen fluoride, and trifluoromethanesulfonic acid.
Protective Equipment: Firefighters put on self-contained breathing apparatus and full protective gear to prevent skin and eye contact.
Special Procedures: In case of larger fire, evacuate area; cool containers with water mist to prevent rupture from heat
Personal Precautions: Wear protective gloves, chemical splash goggles, lab coat; ventilate area; avoid breathing vapors or dust
Environmental Precautions: Prevent material from entering drains, soil, surface water or groundwater; build dikes with inert material if needed.
Clean-Up Methods: Absorb spill on sand, earth, or other inert material; transfer to a chemical waste container; decontaminate spill area with soap and water
Disposal: See disposal considerations; do not release into the environment
Handling: Use in well-ventilated area; avoid skin and eye contact; minimize inhalation of vapor, mist, or dust; keep away from incompatible substances; use grounded equipment
Storage: Store tightly closed in a cool, dry, ventilated area; keep out of direct sunlight; segregate from acids, oxidizers, strong bases
Incompatibility: Avoid storing near oxidizing agents, bases, moisture sensitive materials
Exposure Limits: No specific OSHA, ACGIH, or NIOSH exposure limits established
Engineering Controls: Local exhaust ventilation or fume hood; safeguard against static discharge
Personal Protective Equipment: Nitrile or neoprene gloves, chemical splash goggles, lab coat, appropriate footwear; for large-scale work, consider face shield and chemical-resistant suit
Respiratory Protection: NIOSH approved respirator for organic vapor/mist if ventilation inadequate
Hygiene Measures: Wash hands thoroughly after handling; eat, drink and smoke only in designated areas; remove contaminated clothing and shoes
Physical State: Liquid or low-melting solid (depending on ambient temperature)
Color: Colorless to pale yellow
Odor: Faintly sweet or neutral
Melting Point: Approximately 10°C - 20°C
Boiling Point: Decomposes before boiling
Density: About 1.4 - 1.5 g/cm3 at 25°C
Solubility: Miscible with water; soluble in polar organic solvents
pH: Not applicable (non-aqueous)
Vapor Pressure: Very low, non-volatile under ambient conditions
Viscosity: Moderate to high, temperature dependent
Flash Point: >110°C (closed cup)
Autoignition Temperature: Not determined
Flammability: Not categorized as flammable
Partition Coefficient (n-octanol/water): Not determined
Reactivity: Stable under recommended handling and storage
Chemical Stability: Remains chemically stable when kept dry and protected from light
Possibility of Hazardous Reactions: Reacts with strong oxidizers, strong bases, generating hazardous decomposition products
Conditions to Avoid: Exposure to heat, sparks, flames, moisture; avoid strong acids and bases, oxidizing conditions
Hazardous Decomposition Products: Carbon oxides, nitrogen oxides, sulfur oxides, hydrogen fluoride, trifluoromethanesulfonic acid vapor
Acute Toxicity: Low oral and dermal toxicity; limited data on inhalation hazards
Skin Corrosion/Irritation: Causes irritation on contact; redness and possible blistering
Serious Eye Damage/Irritation: Irritation, redness, watering, blurred vision possible after contact
Respiratory or Skin Sensitization: Not classified as a sensitizer
Chronic Effects: Not enough evidence for carcinogenicity, mutagenicity, reproductive effects
Routes of Exposure: Inhalation, ingestion, skin, eyes
Symptoms of Exposure: Discomfort, nausea, irritation (skin, eyes, mucous membranes)
Ecotoxicity: Product displays toxicity toward aquatic organisms at higher concentrations, especially due to triflate anion
Persistence and Degradability: Breaks down slowly in the environment; ionic liquids often resist biodegradation
Bioaccumulative Potential: Not expected to bioaccumulate due to high water solubility, but data are limited
Mobility in Soil: High mobility in water; risk of release into waterways
Other Adverse Effects: Discharge into natural environments should be strictly controlled, as ionic liquids may disrupt aquatic systems
Disposal Methods: Dispose of as hazardous chemical waste in accordance with local, regional, and national regulations
Waste Treatment: Preferred method is incineration in a chemical incinerator equipped with afterburner and scrubber
Container Disposal: Containers should be triple-rinsed and punctured before disposal; do not attempt to reuse for other substances
Precautions: Do not release to sewer, soil, or natural bodies of water; instruct waste handlers on hazards
UN Number: Not regulated for transportation by most agencies
Transport Hazard Class: Not classified as hazardous under transport regulations
Packing Group: Not applicable
Special Precautions: Use leak-proof, sealed containers, segregate during transport from incompatible substances
Environmental Hazards: Avoid transport with strong oxidizers, acids, or bases; protect from heat, sunlight
ECHA REACH Status: Substance may be subject to ECHA notification or registration
TSCA Status: Not listed on the TSCA Inventory
SARA Title III: Not subject to reporting under Sections 302, 304, or 313
California Proposition 65: Not specifically listed
Other Regulations: Observe all applicable workplace, regional, and national regulations for hazardous substances; chemical hygiene plans should address handling
