Product Name: 1-Ethyl-3-Methylimidazolium Bis(Fluorosulfonyl)Imide
Synonyms: EMIM FSI, Ionic Liquid EMIM FSI
Chemical Formula: C6H11F2N3O4S2
CAS Number: 51050-52-3
Recommended Uses: Electrolytes for batteries, solvents, advanced chemical research
Manufacturer Contact: [Manufacturer's contact details, phone, emergency phone, email]
Emergency Overview: Clear to light yellow, slightly viscous liquid, slightly pungent odor
Classification: Acute Toxicity – Oral (Category 4), Skin Corrosion/Irritation (Category 2), Serious Eye Damage/Irritation (Category 2A)
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation
Pictograms: Exclamation mark
Signal Word: Warning
Precautionary Statements: Wear protective gloves, avoid breathing vapors, wash hands thoroughly after handling, do not eat or drink during use
Potential Health Effects: May irritate skin and eyes; may cause digestive discomfort if ingested; inhalation can result in respiratory tract irritation
Chemical Name: 1-Ethyl-3-Methylimidazolium Bis(Fluorosulfonyl)Imide
Chemical Family: Ionic liquid, Imidazolium salt
Concentration: >97%
Impurities: Water (<1.5%), organic byproducts (<1%)
CAS Registry Number: 51050-52-3
Molecular Weight: 306.29 g/mol
EC Number: 256-743-6
Eye Contact: Immediately flush eyes with flowing water for at least 15 minutes keeping eyelids apart. Remove contact lenses, if present and easy to do. Seek medical attention.
Skin Contact: Remove contaminated clothing. Wash exposed area with soap and water for at least 15 minutes. Get medical help for persistent irritation.
Inhalation: Move person to fresh air. Keep comfortable, monitor for difficulty breathing. If breathing is difficult or symptoms persist, get medical attention.
Ingestion: Rinse mouth, do not induce vomiting. Drink water if conscious. Get medical attention.
Self-Protection for First Aiders: Avoid direct contact with liquid; use nitrile gloves and safety glasses.
Suitable Extinguishing Media: Dry chemical, CO2, alcohol-resistant foam, water spray
Specific Hazards: May release toxic gases including nitrogen oxides, sulfur oxides, hydrogen fluoride, and fluorine-containing compounds
Protective Equipment: Firefighters should wear self-contained breathing apparatus, full protective gear
Precautions: Avoid inhaling combustion products, use water spray to cool containers, prevent runoff
Unusual Fire/Explosion Hazards: Combustion may create corrosive/irritating fumes, dense smoke possible
Personal Precautions: Evacuate area, ventilate, wear personal protective equipment (gloves, goggles, respirator)
Environmental Precautions: Avoid discharge to soil, surface water, and drains
Containment Methods: Use inert absorbent (sand, vermiculite), collect residue in chemical waste container
Clean-up Procedures: Sweep up carefully, transfer to suitable container for safe removal. Wash affected area with plenty of water.
Decontamination: Wash tools and equipment with soapy water; dispose of rinse water responsibly
Handling: Wear PPE (safety glasses, gloves, lab coat), work under fume hood. Avoid skin and eye contact, do not inhale vapors, ensure ventilation.
Hygiene Practices: Wash hands thoroughly after handling, do not eat or smoke near work area
Storage: Store in tightly closed container in a cool, dry, well-ventilated place away from heat and sunlight. Keep separate from oxidizers, acids, alkalies, and moisture-sensitive materials.
Incompatible Materials: Strong oxidizing agents, strong acids, strong bases, moisture
Storage Life: Typically stable up to two years under recommended conditions
Exposure Limits: No established limits for EMIM FSI today; treat as hazardous chemical
Engineering Controls: Use chemical fume hood, eyewash stations, emergency showers
Personal Protection: Nitrile gloves, chemical splash goggles, flame-resistant lab coat, adequate respiratory protection if vapor or mist present
Environmental Exposure Controls: Avoid release into the environment, install spill containment where possible
Appearance: Clear to pale yellow liquid
Odor: Slightly pungent, typical of ionic liquids
Odor Threshold: Not available
pH: Neutral (6.0–7.5, 20°C, 10% solution in water)
Melting Point: -16 — -10°C
Boiling Point: Decomposes before boiling at 220–250°C
Flash Point: >130°C (closed cup)
Evaporation Rate: Non-volatile
Flammability: Not readily flammable, may burn in high heat
Vapor Pressure: <0.01 mmHg at 20°C
Vapor Density: Not determined
Relative Density: 1.35–1.38 g/cm3 (20°C)
Solubility: Miscible with many organic solvents, limited solubility in water
Partition Coefficient (Log Po/w): Not established
Auto-Ignition Temperature: Not available
Decomposition Temperature: >220°C
Viscosity: 35–60 mPa.s at 25°C
Explosive Properties: Not classified
Oxidizing Properties: Not classified
Stability: Stable under normal laboratory and industrial handling conditions.
Reactvity: No dangerous reactions expected under normal use
Hazardous Polymerization: Not known to occur
Hazardous Decomposition Products: Nitrogen oxides, fluorine compounds (HF, F2), sulfur oxides
Incompatible Materials: Strong oxidizers, strong acids, alkalis, moisture, water-sensitive chemicals
Conditions to Avoid: Exposure to strong heat, direct sunlight, sources of ignition, moisture
Acute Toxicity: Oral LD50 (rat): >300 mg/kg (estimated, not fully characterized)
Skin Corrosion/Irritation: May cause redness and irritation on contact
Serious Eye Damage/Irritation: Causes eye irritation, burning sensation
Respiratory Sensitisation: Vapors and aerosols may irritate airways
Skin Sensitisation: Data not available; treat as potential sensitizer
Germ Cell Mutagenicity: Not classified, no data available
Carcinogenicity: No component classified as carcinogenic according to IARC, NTP, OSHA
Reproductive Toxicity: No adequate data
STOT – Single Exposure: May cause transient irritation to the respiratory tract
STOT – Repeated Exposure: Data not established
Aspiration Hazard: Data not available
Aquatic Toxicity: Harmful to aquatic organisms, risk of long-term hazards in aquatic environment
Persistence and Degradability: Poorly biodegradable, persists in environment
Bioaccumulative Potential: Accumulation possible, detailed studies lacking
Mobility in Soil: Moderate mobility; surface runoff and leaching possible
Other Adverse Effects: Toxicological impact increases with higher concentration spills
Precautions: Avoid introduction into waterways, sewers, or soil; use secondary containment if stored near floor drains
Waste Treatment Methods: Dispose as hazardous chemical waste via licensed firm
Container Disposal: Triple rinse, deface label, then dispose by hazardous waste contractor
Environmental Precautions: Do not allow to reach ground water, waterways, or sewage system
Recycling/Recovery: Incinerate in chemical incinerator equipped with afterburner and scrubber
Disposal Coding: European Waste Catalogue (EWC): 16 05 09, US EPA: U-code for unused chemical
UN Number: Not regulated as a dangerous good by IATA, IMDG, ADR
Proper Shipping Name: Not assigned
Transport Hazard Class: Not classified; treat as chemical sample in absence of full regulatory guidance
Packing Group: Not assigned
Special Precautions: Handle as hazardous laboratory chemical, follow safety data label on packaging
Marine Pollutant: Not listed, but avoid transporting with foodstuffs or medicine
Labeling Requirements: Comply with GHS and OSHA hazard communication rules
TSCA: Listed or otherwise permitted under R&D provisions
DSL/NDSL: Listed in Canadian inventory (check for most current status)
REACH Status: Registration may not be required under current tonnage (<1 ton/year), verify for larger scale
SARA Title III: Not listed under Sections 302, 304, 313
California Proposition 65: Not listed; not known to contain substances causing cancer or reproductive toxicity
Other Regulations: Minimum handling age in accordance with local, state, or federal requirements; PPE required at all times
