Product Name: 1-Benzyl-3-Methylimidazolium Bis(Trifluoromethylsulfonyl)Imide
Chemical Formula: C13H15F6N3O4S2
SYNONYMS: [BMIM][NTf2], Ionic Liquid
CAS Number: 174899-83-3
Recommended Use: Solvent, chemical intermediate, electrochemistry, catalysis
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Hazard Classification: Not classified as hazardous according to GHS standards for solids; always observe handling precautions.
Signal Word: None required by GHS/
Pictograms: None
Physical Hazards: Can generate toxic fumes under fire conditions; becomes slippery if spilled.
Health Hazards: May irritate eyes, skin, and respiratory system upon contact; accidental ingestion may be harmful.
Environmental Hazards: Toxic to aquatic life with long lasting effects; prevent release into waterways.
Chemical Identity: 1-Benzyl-3-Methylimidazolium Bis(Trifluoromethylsulfonyl)Imide
Component: Cation: 1-Benzyl-3-Methylimidazolium; Anion: Bis(Trifluoromethylsulfonyl)Imide
CAS Number: 174899-83-3
Concentration: 97-100%
Impurities or Additives: Typical batches may contain minor byproducts (<2%) from synthesis or degradation.
Inhalation: Move person to fresh air, keep at rest, consult a physician if symptoms persist.
Skin Contact: Wash with plenty of water and soap, remove contaminated clothing, seek medical attention if irritation develops.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses, continue rinsing. Seek medical advice for persistent discomfort.
Ingestion: Rinse mouth thoroughly, do not induce vomiting, call poison control or doctor immediately.
Suitable Extinguishing Media: Use water spray, alcohol-resistant foam, carbon dioxide, or dry chemical.
Unsuitable Extinguishing Media: Avoid high-pressure water streams.
Specific Hazards: May burn with dense, toxic smoke. Combustion releases oxides of carbon, nitrogen, sulfur, and toxic fluorinated gases.
Protective Equipment for Firefighters: Wear full protective gear and self-contained breathing apparatus.
Advice for Fire Responders: Evacuate area, stay upwind, cool containers exposed to flames.
Personal Precautions: Avoid breathing vapors, wear suitable protective clothing including gloves and goggles.
Emergency Procedures: Evacuate unnecessary personnel from area, ventilate affected zone.
Methods for Containment: Stop leak if safe to do so; use inert absorbent such as sand or vermiculite to contain spill.
Clean-up Methods: Collect residues with non-sparking tools, place material in suitable, labeled containers for disposal.
Environmental Precautions: Prevent entry to sewers, drains, or natural waterways.
Handling: Use only in well-ventilated environments, avoid inhalation of vapors, avoid contact with eyes, skin, and clothing. Do not eat, drink, or smoke during use. Wash hands thoroughly after handling.
Storage Conditions: Store tightly closed in original container in a cool, dry, and well-ventilated area away from sunlight. Protect from moisture and incompatible substances.
Incompatibilities: Strong oxidizers, water-reactive substances, strong acids, and alkali metals.
Special Precautions: Use only with appropriate chemical-resistant containers.
Engineering Controls: Use fume hoods, local exhaust ventilation, and safety showers to minimize exposure.
Occupational Exposure Limits: No established limits by OSHA, ACGIH, or other agencies; manage as nuisance chemical.
Personal Protective Equipment (PPE): Chemical-resistant gloves (nitrile or neoprene), safety goggles or face shield, lab coat or chemical-resistant apron, suitable respiratory protection if aerosols or vapors present.
Hygiene Measures: Do not eat, drink, or smoke in areas of use. Wash thoroughly before breaks and after completion of work. Keep work areas clean.
Appearance: Colorless to pale yellow liquid
Odor: Mild, non-characteristic odor
Odor Threshold: Not determined
pH: Neutral to slightly acidic (5.5–7)
Melting Point/Freezing Point: –4 °C
Boiling Point/Range: Decomposes above 300 °C
Flash Point: >110 °C (Closed cup)
Evaporation Rate: Negligible
Flammability: Not readily flammable
Vapor Pressure: <0.01 mm Hg at 25°C
Vapor Density: Not available
Relative Density: 1.42 g/cm³ at 20°C
Solubility in Water: Slightly soluble
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not determined
Decomposition Temperature: >300 °C
Viscosity: 80–100 cP at 25°C
Molecular Weight: 422.39 g/mol
Chemical Stability: Stable under recommended storage and handling conditions.
Possible Hazardous Reactions: Reacts violently with strong oxidizing agents, acids, alkali metals.
Conditions to Avoid: Excess heat, direct sunlight, moisture, open flames, sources of ignition.
Incompatible Materials: Strong acids, bases, oxidizers, alkali metals, water.
Hazardous Decomposition Products: Carbon oxides, nitrogen oxides, sulfur oxides, hydrogen fluoride, and trifluoromethanesulfonyl fluoride under thermal decomposition.
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Low toxicity reported in animal studies. Oral LD50 (rat): >2000 mg/kg
Skin Corrosion/Irritation: May cause mild irritation after prolonged or repeated contact
Serious Eye Damage/Irritation: May provoke mild irritation and redness
Respiratory Sensitization: Not classified as respiratory sensitizer
Skin Sensitization: No known sensitizing effects
Germ Cell Mutagenicity: No data suggest mutagenic risk
Reproductive Toxicity: No data available, avoid direct exposure
Specific Target Organ Toxicity – Single Exposure: Prolonged inhalation of vapor or mist can cause respiratory irritation
Specific Target Organ Toxicity – Repeated Exposure: Not expected at low exposures
Aspiration Hazard: Not an aspiration hazard
Potential Health Symptoms: Headache, dizziness, gastrointestinal discomfort after ingestion or inhalation
Ecotoxicity: Toxic to aquatic organisms, potential to cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Not rapidly biodegradable, persists in soil and water
Bioaccumulative Potential: Likely to accumulate in aquatic organisms, but bioaccumulation studies are limited
Mobility in Soil: Moderate mobility, potential to contaminate ground or surface water if spilled
Other Adverse Effects: Large releases threaten aquatic habitats, avoid entry to environment at all times
Waste Treatment Methods: Consult federal, state, and local regulations
Disposal of Product: Dispose as hazardous waste according to local regulations at approved waste management facilities
Disposal of Contaminated Packaging: Empty containers should be handled as hazardous waste after triple rinsing; do not reuse containers
Precautions: Avoid release in the environment or drainage; handle residues carefully to prevent pollution
UN Number: Not classified as dangerous goods under IATA, IMDG, USDOT guidelines
UN Proper Shipping Name: None assigned
Transport Hazard Class: Not regulated
Packing Group: Not applicable
Environmental Hazards During Transport: Avoid accidental leakage, contain spillage
Special Transport Precautions: Secure tightly in containers, avoid temperature extremes and physical damage
US Federal Regulations: Not listed under SARA/EPCRA; not a CAA or CERCLA listed material
TSCA Inventory: Product or components may not be listed; research use only
OSHA: Not considered hazardous by OSHA standards
European Union: Not classified as hazardous under CLP regulation; observe normal precautions for laboratory chemicals
Other International Regulations: Consult local and national laws specific to region; product intended for research and industrial use only
Labeling: Appropriate laboratory or industrial hazard labels must be present on all containers and vessels storing this substance
