Product Name: 1-Hydroxyethyl-3-Methylimidazolium Trifluoromethanesulfonate
Chemical Family: Ionic Liquid
Synonyms: [HMIM][OTf], 1-(2-Hydroxyethyl)-3-methylimidazolium trifluoromethanesulfonate
Recommended Use: Solvent, catalyst, electrochemical applications
Manufacturer: Commercial chemical suppliers, research laboratories
Emergency Contact Number: Chemtrec or local poison control center
CAS Number: 145022-44-2
Classification: Acute toxicity (oral and dermal), Skin and eye irritation, Environmental hazard
Signal Word: Warning
Hazard Statements: May cause moderate irritation to skin and eyes; harmful if swallowed; possible respiratory and digestive tract irritation; prolonged exposure can lead to more severe effects
Pictograms: Exclamation mark (irritant or harmful), environmental hazard icon
Precautionary Statements: Avoid breathing vapors, avoid contact with skin and eyes, use only with adequate ventilation, wear appropriate protective gear
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Chemical Name: 1-Hydroxyethyl-3-methylimidazolium trifluoromethanesulfonate
CAS Number: 145022-44-2
EC Number: 604-326-2
PURITY: >98% (varies by supplier; check certificate of analysis)
Impurities: Unreacted starting materials (trace amounts), water (<1%)
Inhalation: Move exposed person to fresh air; provide oxygen or artificial respiration if breathing is difficult; seek medical attention for any persistent symptoms
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, seek medical advice if irritation persists
Eye Contact: Rinse eyes with plenty of water for at least 15 minutes, remove contact lenses if present and easy to do, seek medical attention immediately
Ingestion: Do not induce vomiting, rinse mouth thoroughly, call poison control or get medical help right away
Most Important Symptoms/Effects: Burning sensation, redness, itching, headache, nausea
Suitable Extinguishing Media: Use foam, carbon dioxide, dry chemical powder, or water spray
Fire Hazards: This compound is not considered highly flammable but may decompose to release toxic fumes like hydrogen fluoride and sulfur oxides
Protective Equipment for Firefighters: Use self-contained breathing apparatus and protective clothing to avoid exposure to combustion by-products
Special Hazards: Avoid inhaling fumes produced during thermal decomposition; ventilate area after fire is extinguished
Explosion Data: No known risk of explosion under normal use and storage conditions
Personal Precautions: Evacuate personnel to safe areas, use appropriate personal protective equipment including gloves and safety goggles
Environmental Precautions: Prevent further leakage or spillage if safe to do so; avoid discharge into drains, water courses, or onto the ground
Cleanup Methods: Absorb spill with inert absorbent material (sand, earth, commercial absorbent), collect and place in a suitable closed container for disposal; ventilate area and wash spill site after material pickup
Decontamination: Wash contaminated surfaces with soap and water; ensure all waste is collected for disposal
Safe Handling Practices: Handle with care in a well-ventilated area; avoid inhalation and prolonged or repeated contact with skin and eyes; use mechanical exhaust or process enclosure to control vapor/dust
Storage Recommendations: Store tightly closed in original container, in a dry, cool, and well-ventilated area away from incompatible substances like oxidizing agents and strong bases
Specific uses: Only handle in laboratory or industrial settings with trained personnel
Hygiene Measures: Wash hands after handling, do not eat, drink, or smoke in the area where this chemical is used
Engineering Controls: Use chemical fume hood or local exhaust to minimize vapor exposure
Eye Protection: Chemical splash goggles or safety glasses with side shields
Skin Protection: Wear laboratory coat, gloves (nitrile recommended), and other protective clothing as appropriate
Respiratory Protection: If air contamination exceeds acceptable levels, use a suitable NIOSH-approved respirator
Environmental Exposure Controls: Prevent chemical from entering waterways or sewer systems; provide for rapid spill cleanup and waste collection
Occupational Exposure Limits: Not established for this compound; minimize exposure using best laboratory safety practices
Physical State: Liquid (at standard conditions)
Color: Colorless to pale yellow
Odor: Mild, pleasant or faintly acidic
pH: Slightly acidic
Melting Point: Approx. -15°C to 5°C
Boiling Point: Not available, decomposes before boiling
Flash Point: >100°C (estimated, not highly flammable)
Solubility: Miscible with water and many organic solvents
Vapor Pressure: Very low
Density: ~1.4 - 1.5 g/cm³ (refer to supplier data sheets for specific batch)
Viscosity: Moderate to high (depends on water content and temperature)
Chemical Stability: Stable under standard use and storage conditions; pure substances tend to resist decomposition at ambient temperature
Reactivity: Strong acids, bases, and oxidizing agents can cause hazardous reactions
Decomposition Products: Fluorinated gases, sulfur oxides, nitrogen oxides, carbon monoxide, and carbon dioxide possible on heating or burning
Polymerization: No hazardous polymerization anticipated
Conditions to Avoid: High temperatures, open flames, incompatible chemicals
Acute Toxicity: Data on acute oral, dermal, or inhalation toxicity not fully established; ingestion or inhalation in large amounts likely harmful
Skin and Eye Irritation: May cause moderate irritation on repeated or prolonged contact
Chronic Effects: Prolonged exposure may cause damage to organs; data on carcinogenicity and reproductive toxicity remain limited and inconclusive
Sensitization: Not known to cause respiratory or skin sensitization in typical laboratory or industrial exposures
Symptoms: Redness, stinging, burning sensation, headaches, dizziness if inhaled or ingested
Target Organs: No specific data; effects associated with nervous system, kidneys, and gastrointestinal tract in cases of significant exposure
Ecotoxicity: Toxic to aquatic life; may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Not readily biodegradable; may persist in soil and water
Bioaccumulative Potential: Compound and breakdown products may accumulate in aquatic organisms; long-term environmental data limited
Mobility in Soil: Ionic liquid may leach through soil and reach groundwater in large spill scenarios
Other Adverse Effects: Avoid uncontrolled release to environment due to potential harm to organisms and water quality
Waste Treatment Methods: Send for disposal by a licensed chemical waste contractor; do not dispose of via sink or regular trash
Contaminated Packaging: Handle empty containers as hazardous waste; decontaminate or incinerate using approved methods
Disposal Regulations: All waste must be managed in accordance with local, national, and international regulations
Precautions: Prevent exposure to humans and release into the environment during transport and disposal
UN Number: Not assigned for this specific compound
Proper Shipping Name: 1-Hydroxyethyl-3-Methylimidazolium Trifluoromethanesulfonate (may require shipping as "Chemical, N.O.S.")
Transport Hazard Class: Not classified as hazardous for transport under most international regulations; check requirements for local, air, and sea transport
Packing Group: Not assigned
Marine Pollutant: May pose risk to aquatic ecosystems; handle spills rapidly and responsibly
Special Precautions: Ensure well-sealed containers; protect from moisture and temperature extremes during shipment
OSHA Status: Not regulated as hazardous under US OSHA Hazard Communication Standard
TSCA Inventory: Component may not appear specifically—verify with supplier
REACH/EC Regulations: Not registered as a high-volume chemical; lower tonnage or laboratory use may be exempt
Other Regulations: Check with local authorities for workplace exposure limits and chemical storage requirements
Labeling Requirements: Standard chemical labeling for laboratory or workplace safety; signal words, precaution, and hazard statements as outlined
Chemical Safety Assessment: Not carried out for small-scale or custom-made ionic liquids; users should implement best practices for handling and risk management
