Product Name: 2-Hydroxy-N,N,N-Trimethylethanaminium Bis((Trifluoromethyl)Sulfonyl)Imide
Synonyms: Choline Bis(trifluoromethanesulfonyl)imide, Choline Tf2N
Usage: Laboratory chemicals, research and development, ionic liquid solvent
Manufacturer: Contact details should reference your supplier or laboratory contact
Telephone: Refer to the material provider
Email: Refer to the material provider
Emergency Phone: Local emergency services
Recommended Restrictions: Not for household, food, feed, or pharmaceutical use
GHS Classification: Eye irritation (Category 2A), Skin irritation (Category 2), Specific target organ toxicity – single exposure (Category 3)
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause respiratory irritation
Precautionary Statements: Avoid breathing dust. Wear protective gloves and eye protection. Wash skin thoroughly after handling. Use only outdoors or in well-ventilated area.
Pictograms: Exclamation mark (GHS07)
Other Hazards: May be harmful if swallowed or inhaled, contact with strong acids liberates toxic gas
Chemical Name: 2-Hydroxy-N,N,N-Trimethylethanaminium Bis((Trifluoromethyl)Sulfonyl)Imide
CAS Number: 318949-01-6
Percentage: 100% (pure substance)
Molecular Formula: C7H16F6N2O5S2
Molecular Weight: 388.33 g/mol
Impurities or Stabilizing Additives: None reported
Other Components: No other components, single substance product
Inhalation: Move person outside, support breathing with fresh air. Seek medical attention if symptoms continue. Avoid breathing dust or mist.
Skin Contact: Wash skin with soap and plenty of water. Remove contaminated clothing. If irritation persists, get medical advice.
Eye Contact: Flush eyes with running water for at least 15 minutes, holding eyelids open. Remove contact lenses if present and easy to do. Seek medical help, especially if irritation continues.
Ingestion: Rinse mouth with water. Do not induce vomiting unless directed by medical personnel. Never give anything by mouth to an unconscious person. Get medical attention.
Acute Symptoms: Redness, irritation of skin and eyes, cough, shortness of breath
Medical Attention Notes: Symptoms may be delayed, keep under observation for delayed symptoms or persistent irritation
Suitable Extinguishing Media: Water spray, dry powder, carbon dioxide, alcohol-resistant foam
Unsuitable Extinguishing Media: Direct water jet on bulk product
Special Hazards: Closed containers may rupture due to buildup of pressure when exposed to heat. May produce toxic gases, including carbon oxides, nitrogen oxides, sulfur oxides, and hydrogen fluoride
Fire Fighting Instructions: Cool exposed containers with water spray. Fight fire from safe distance.
Protective Equipment: Full protective clothing, self-contained breathing apparatus. Stay upwind of fumes.
Combustion Products: Carbon oxides, nitrogen oxides, sulfur oxides, hydrogen fluoride, and other toxic vapors
Personal Precautions: Avoid skin and eye contact, avoid inhalation of dust, use personal protective gear
Protective Equipment: Gloves, protective eyewear, laboratory coat, dust mask or respirator
Emergency Procedures: Ventilate area, remove ignition sources in the vicinity
Containment Methods: Use inert absorbent such as sand or earth for spills
Cleanup Procedures: Pick up and transfer to container for disposal according to local regulations. Wash spill area with water. Avoid release to environment.
Environmental Precautions: Prevent entry into waterways, drains, or sewers. Notify authorities if large quantities enter environment.
Handling: Handle only in well-ventilated areas, avoid dust formation. Prevent contact with eyes, skin, and clothing. Do not eat, drink, or smoke near the chemical.
Hygiene Practices: Wash hands after use, keep away from food and drinks, take off contaminated clothing and wash before reuse.
Storage Conditions: Store tightly closed in a cool, dry, well-ventilated place away from incompatible substances such as strong acids, oxidizers, or bases.
Keep Separation: Keep separate from foodstuffs or feed.
Specific End Use: Refer to laboratory use guidelines; avoid storage above room temperature.
Exposure Limits: No occupational exposure limits established
Engineering Controls: Chemical fume hood, local exhaust ventilation recommended
Personal Protective Equipment: Nitrile or latex gloves, safety goggles, laboratory coat, if dust may be generated use dust respirator (EN 149, N95 or better)
Respiratory Protection: Use approved respirator only in circumstances of significant dust generation
Eye Protection: Chemical goggles or safety glasses with side shields
Skin Protection: Gloves and long-sleeved clothing
Environmental Controls: Avoid disposal into drains, follow best practice for chemical hygiene
Appearance: White to off-white solid or crystalline powder
Odor: Nearly odorless or faint chemical odor
Odor Threshold: Not determined
pH: 2.5–4.5 (10 g/L in water)
Melting Point: 66–72°C
Boiling Point: Not applicable (decomposes before boiling)
Flash Point: Data not available
Evaporation Rate: Not determined
Flammability: Not classified as flammable
Vapor Pressure: Negligible at 20°C
Vapor Density: Not determined
Relative Density: 1.4–1.5 g/cm³
Solubility: Soluble in water, soluble in many organic solvents
Partition Coefficient (log Kow): Not determined
Auto-Ignition Temperature: Not determined
Decomposition Temperature: Above 200°C
Viscosity: Not determined
Chemical Stability: Stable under recommended storage conditions. Sensitive to strong acids and bases
Reactivity: Reacts with strong oxidizing agents, strong acids, and bases. May release hazardous gases
Hazardous Reactions: May produce toxic gases such as hydrogen fluoride when heated or in contact with strong acids
Conditions to Avoid: Excessive heat, incompatible materials, moisture, extreme pH
Incompatible Materials: Strong oxidizers, strong acids, strong bases
Hazardous Decomposition Products: Decomposes at high temperatures to emit carbon oxides, nitrogen oxides, sulfur oxides, hydrogen fluoride, trifluoromethanesulfonic acid
Likely Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: Limited data available; estimated to be low to moderate
Skin Corrosion/Irritation: May cause irritation, redness, or dermatitis on prolonged exposure
Eye Damage/Irritation: Causes moderate to severe eye irritation
Respiratory Sensitization: Not known to cause respiratory sensitization
Skin Sensitization: No information available
Symptoms of Exposure: Irritation to upper respiratory tract, coughing, redness, pain in contacted area, watering of eyes
Chronic Effects: No chronic toxicity data, long-term exposure not evaluated
Carcinogenicity: Not classified by IARC, NTP, or OSHA
Mutagenicity: No data available
Reproductive Toxicity: No data available
Additional Information: Avoid repeated or prolonged exposure for safety; observe common laboratory precautions
Toxicity to Aquatic Life: Data not available; ionic liquids may exhibit chronic toxicity to aquatic organisms
Persistence and Degradability: Information not available. Ionic liquids may be poorly biodegradable
Bioaccumulation: Information not available
Mobility in Soil: May move into ground water due to water solubility
Other Adverse Effects: Avoid uncontrolled release to the environment. Accumulation in aquatic systems can be harmful
Precautionary Guidance: Collect spillage and dispose properly.
Waste Disposal: Dispose in accordance with local, regional, and national regulations. Do not place in municipal waste.
Contaminated Containers: Rinse containers thoroughly before disposal or recycling; follow local hazardous waste procedures
Disposal Methods: Use licensed chemical disposal contractor. Do not discharge into drains, ground, or surface waters.
Special Precautions: Avoid contamination of soil, water, and drains. Comply with applicable environmental regulations.
UN Number: Not regulated as dangerous goods under UN transport regulations
UN Proper Shipping Name: Not classified
Transport Hazard Class: Not classified
Packing Group: Not classified
Environmental Hazards: Not designated as hazardous cargo
Transport Precautions: Keep container tightly sealed. Avoid physical damage during transport. Store away from food and feedstuffs.
Special Regulatory Transport Information: Subject to general chemical control and transport rules.
TSCA (US): May require notification or pre-manufacture notice
REACH (EU): Registration might be needed for quantities above 1 tonne/year
OSHA Hazardous Chemical: Classified as hazardous under OSHA Hazard Communication Standard
GHS Classification: Relevant to eye and skin irritants. Look up local equivalents.
DSL/NDSL (Canada): Check registration status
Other Regulations: Ensure compliance with local, regional, and national regulations for chemical handling, storage, and disposal.
Chemical Inventories: Verify status on international inventories like AICS, ENCS, EINECS, PICCS.
