Product Name: 1-Octodecyl-3-Methylimidazolium Bis((Trifluoromethyl)Sulfonyl)Imide
Chemical Family: Ionic Liquid
Synonyms: OMIM-TFSI, 1-Octadecyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide
Product Use: Solvent, electrolyte additive, catalyst medium, laboratory research
Supplier: Specialty chemicals provider with distribution in major research markets
Emergency Contacts: ChemTrec, poison control, and regional emergency hotlines
CAS Number: 516474-01-8
UN Number: Not assigned for transport
Hazard Classification: Combustible organic compound, not classed as highly hazardous
Signal Word: Warning
Physical Hazards: May produce irritating or toxic fumes
Health Hazards: May cause irritation to skin, eyes, respiratory tract; long-term impacts remain under testing
Environmental Hazards: Toxically persistent in aquatic environments; bioaccumulation possible
Risk Phrases: Causes eye and skin irritation; avoid inhalation
Precautionary Phrases: Wear proper protective gear; no direct contact
Chemical Identity: 1-Octodecyl-3-Methylimidazolium Bis((Trifluoromethyl)Sulfonyl)Imide
Concentration: >99% pure
Impurities: Trace water <0.5%, possible residual organic impurities
Molecular Formula: C27H48F6N3O4S2
Molecular Weight: 685.8 g/mol
General Advice: Seek fresh air; rinse contact areas with water; remove contaminated clothing
Inhalation: Remove to fresh air immediately; assist breathing if needed
Skin Contact: Wash thoroughly with soap, running water for at least 15 minutes
Eye Contact: Rinse eyes with water, lifting eyelids frequently; seek medical help after rinsing
Ingestion: Rinse mouth, do not induce vomiting; seek physician’s care
Delayed Effects: Monitor for breathing problems or rash hours later
Suitable Extinguishing Media: CO2, dry chemical, foam, water spray in large quantity
Unsuitable Extinguishing Media: Do not use high-velocity water jet
Fire Hazards: Decomposition releases toxic/irritating gases—CO, NOx, SOx, HF, imidazole fumes
Protective Equipment: Full protective suit; self-contained breathing apparatus
Special Procedures: Isolate area, use water spray for cooling; avoid runoff to drains
Combustion Products: Hydrogen fluoride, sulfur dioxide, carbon oxides, possible imidazole vapors
Personal Precautions: Use gloves, goggles, vapor mask; avoid direct skin and eye contact
Environmental Precautions: Block spillage from entering drains and waterways
Containment: Cover with inert absorbent (vermiculite, sand) and sweep up into sealable container
Cleaning Up: Wash residue with detergent, ventilate affected area
Disposal: Dispose of as hazardous organic chemical waste
Spill Size Response: Large spills require containment booms and emergency support
Handling Precautions: Avoid dust, direct vapors, unsafe transfers; use in fume hood
Storage Requirements: Store sealed in original containers in cool, dry, well-ventilated facility
Incompatible Materials: Oxidizing agents, acids, alkalis, strong reducing agents
Specific Conditions: No smoking/eating/drinking in work zone; keep container tightly sealed
Long-Term Storage: No freezing, avoid heat, avoid direct light
Container Materials: Store in glass, high-density plastic, or steel lined with PTFE
Control Parameters: No established occupational exposure limits
Engineering Controls: Chemical fume hood, exhaust ventilation, safety shower nearby
Personal Protective Equipment: Safety glasses/goggles, synthetic gloves, chemical-resistant lab coat
Respiratory Protection: NIOSH-approved mask for organics if airborne mist or vapor present
Skin and Body Protection: Rubber boots, sleeves for high volume tasks
Hygiene Measures: Wash hands after use, remove contaminated clothes, avoid open wounds
Appearance: Pale yellow to colorless viscous liquid or wax-like solid
Odor: Mild or faint odor, often undetectable
pH: Not applicable (nonaqueous)
Melting Point: 22 – 30°C
Boiling Point: Breakdown may start before boiling; thermal decomposition expected >300°C
Flash Point: >150°C closed cup
Autoignition Temperature: Not determined
Evaporation Rate: Very low
Explosive Properties: Not classified as explosive
Vapor Pressure: Negligible at room temperature
Solubility: Insoluble in water, soluble in acetone, DMSO, acetonitrile
Density: 1.0–1.2 g/cm³ at 25°C
Partition Coefficient: Not established
Viscosity: High; varies with temperature
Chemical Stability: Stable at room temperature under recommended handling and storage
Conditions to Avoid: Moisture uptake, exposure to strong oxidizers, excessive heat
Hazardous Decomposition: Yields hydrogen fluoride, sulfur oxides, nitrogen oxides, carbon oxides
Incompatible Materials: Strong acids, bases, oxidizing/reducing agents; reactive metals
Polymerization: Not known to polymerize
Reactivity: Low under ambient conditions, increases with extreme heat or chemical mixing
Acute Toxicity: Low oral/dermal toxicity predicted, limited direct exposure data
Skin Corrosion/Irritation: Direct contact can cause irritation, redness, possible burns with prolonged exposure
Eye Damage/Irritation: Eye contact produces tearing, burning sensation, possible damage
Respiratory Sensitization: Dust or mists may irritate nose, throat, lungs
Carcinogenicity: Not listed by ACGIH, IARC, NTP
Mutagenicity: No data in humans, rodent testing limited
Ingestion Hazards: Gastrointestinal upset, possible nausea if swallowed
Chronic Effects: Not expected with standard lab practices; unstudied long-term effects
Target Organ Effects: No definitive links identified
Ecotoxicity: Harmful to aquatic organisms, potential to disrupt aquatic environments
Persistence and Degradability: Not readily biodegradable, long residence time in soil/water
Bioaccumulative Potential: May accumulate in living organisms due to chemical stability
Mobility in Soil: Low volatility, limited mobility but affinity to organic matter
Other Effects: Not expected to impact ozone or global warming directly
Aquatic Release: Environmental hazard; restrict discharge to waterways or soil
Waste Treatment Methods: Incinerate under controlled conditions with scrubber for acid gases
Contaminated Packaging: Triple rinse, send to approved chemical waste handler
Disposal Precautions: Handle with gloves, eye protection, avoid evaporation into air or sewers
Regulatory Restrictions: Classified as hazardous waste in most regions; local regulations require consultation
Recycling: No recommended pathway, unsuitable for downcycling
UN Number: Not classified by UN for ground, sea, air shipping
Proper Shipping Name: Laboratory chemical, N.O.S.
Transport Hazard Class: Not assigned
Packing Group: None assigned
Marine Pollutant: Hazardous to aquatic life; notify carrier
Special Transport Precautions: Secure containers, segregate from foodstuff, acids, oxidizers
Labels Needed: Personal Protection, Toxics symbol
TSCA Status: Not listed or under research use only
OSHA Status: Not regulated as hazardous; general chemical safety applies
SARA Title III: Not subject to reporting thresholds
REACH Status: Research and development exemption in EU
California Proposition 65: Not listed
Other International Listings: Check country-specific requirements; restrictions may apply
Inventory Listings: Under review by chemical regulatory agencies in multiple jurisdictions
