Product Name: 1-Butyl-3-Methylimidazolium Bis(Fluorosulfonyl)Imide
Synonyms: [BMIM][FSI], Ionic Liquid BMIM FSI
Recommended Use: Electrolyte component in advanced batteries, laboratory solvent, ionic liquid
Company Information: Manufacturer and supplier contact details, including address, emergency phone number, and email for technical questions
Product Code: Unique batch or product code for reliable tracking and traceability
CAS Number: 671190-46-2
Classification: Eye irritation, Skin irritation, Specific target organ toxicity (single exposure), Environmental hazard to aquatic life
Hazard Statements: Causes skin and eye irritation. May cause respiratory irritation. Harmful to aquatic organisms with long lasting effects.
Precautionary Statements: Avoid breathing dust, fume, mist, vapors, or spray. Use only with adequate ventilation. Wash hands thoroughly after handling. Avoid release to the environment.
Pictograms: Exclamation mark, Environmental hazard
Signal Word: Warning
Chemical Name: 1-Butyl-3-Methylimidazolium Bis(Fluorosulfonyl)Imide
Chemical Formula: C8H15F2N3O4S2
Components: 1-Butyl-3-Methylimidazolium cation (49–51%), Bis(Fluorosulfonyl)Imide anion (49–51%)
Impurities: Traces of related imidazolium and sulfonyl compounds may occur as byproducts, dependent on manufacturing controls
Concentration: Greater than 99% purity (as per supplier specifications)
Inhalation: Move person to fresh air and keep comfortable for breathing. Loosen tight clothing. If symptoms like difficulty breathing or coughing arise, seek medical attention.
Skin Contact: Remove contaminated clothing and wash skin thoroughly with soap and plenty of water. If irritation or rash appears, consult a physician.
Eye Contact: Rinse thoroughly under running water for several minutes (at least 15 minutes), lifting upper and lower eyelids occasionally. Remove contact lenses if present and easy to do. Persisting irritation indicates a need for medical review.
Ingestion: Rinse mouth with water if conscious. Do not induce vomiting unless advised by medical personnel. Observe for symptoms such as nausea, abdominal discomfort, or dizziness; consult physician immediately.
Suitable Extinguishing Media: Water mist, carbon dioxide, dry chemical powder, and alcohol-resistant foam are effective choices for extinguishing fires involving this material. Avoid direct water stream to prevent spreading.
Specific Hazards Arising: Generates toxic and corrosive gases on combustion, including nitrogen oxides, sulfur oxides, hydrogen fluoride, and imidazole-derived gases.
Special Protective Equipment: Firefighters should wear full protective gear and a self-contained breathing apparatus to limit exposure to decomposition or combustion products.
Advice: Confine fire area, use water spray to cool down exposed surfaces, and prevent run-off from entering drains or watercourses.
Personal Precautions: Wear chemical-resistant gloves, safety goggles, and protective clothing. Ensure adequate ventilation in the release area and remove ignition sources.
Environmental Precautions: Prevent entry into sewers, surface water, or soil. Contain spill to avoid environmental contamination.
Methods for Clean-Up: Collect spilled material with inert absorbent like sand or vermiculite, shovel into containers for disposal. Wash area with water and detergent. Dispose as hazardous waste in line with local regulations.
Safe Handling: Handle with gloves, goggles, and suitable personal protective equipment in a chemical fume hood or well-ventilated area. Avoid contact with skin, eyes, and clothing. Prevent inhaling vapors or mists. Observe general industrial hygiene measures.
Storage Requirements: Store tightly closed in a dry, cool, and well-ventilated place away from incompatible materials like strong oxidizers and acids. Keep container out of direct sunlight and moisture. Store in corrosion-resistant containers clearly labeled with contents.
Incompatibilities: Avoid oxidizing and reducing agents, strong acids, and bases to reduce risk of hazardous reactions.
Engineering Controls: Work in a properly functioning chemical fume hood or use local exhaust ventilation to minimize airborne exposures. Use closed systems if possible for handling large quantities.
Protective Equipment: Wear chemical-resistant gloves (nitrile, butyl rubber), splash-proof safety goggles, face shield if splashing possible, and a lab coat or disposable coverall. For spills or heavy exposure, use a full-face respirator.
Exposure Limits: No specific occupational exposure limit assigned. Maintain exposures as low as practicable through controls and PPE.
General Hygiene: Wash hands after handling and before eating, drinking, or smoking.
Appearance: Clear, colorless to pale yellow liquid
Odor: Faint, slightly sweet odor
Boiling Point: Above 300 °C (decomposes prior to boiling)
Melting Point: -15 to -10 °C
Flash Point: Greater than 200 °C (closed cup method)
Vapor Pressure: Extremely low (<0.01 Pa at 25 °C)
Solubility: Good solubility in water and polar organic solvents
Viscosity: Moderate, variable with temperature (approx. 40–70 cP at 25 °C)
Density: 1.45–1.55 g/cm³ at 25 °C
pH: Not applicable (non-aqueous liquid)
Chemical Stability: Stable under recommended storage conditions; degrades on exposure to strong acids, bases, or high temperatures.
Reactivity: Inert towards most materials under normal laboratory conditions, reacts vigorously with strong oxidizers or reducing agents.
Conditions to Avoid: Avoid excess heat, direct sunlight, and sources of ignition.
Hazardous Decomposition Products: Decomposition can form toxic gases like hydrogen fluoride, nitrogen oxides, sulfur oxides, and volatile imidazole byproducts.
Polymerization: Not subject to hazardous polymerization.
Acute Toxicity: Limited oral and dermal toxicity data in humans and animals. Estimated oral LD50 (rat) >2000 mg/kg. Skin absorption can lead to irritation or mild systemic effects in sensitive individuals.
Skin Corrosion/Irritation: Prolonged exposure can cause redness, dryness, or irritation.
Serious Eye Damage/Irritation: Causes irritation, tearing, and possible conjunctivitis on contact.
Respiratory Effects: Inhalation of vapors or mist may produce coughing, respiratory tract irritation, or dizziness.
Sensitization: Not classified as a sensitizer, but prolonged dermal contact may cause allergic reaction in rare cases.
Chronic Exposure: No evidence of chronic toxicity or carcinogenicity in current literature. Use precaution until more long-term data exists.
Ecotoxicity: Harmful to aquatic organisms at low concentrations, with long lasting effects possible. Studies with similar ionic liquids show moderate acute toxicity to daphnia and algae.
Persistence and Degradability: Poorly biodegradable, stable in the environment, tends to persist without significant breakdown unless treated.
Bioaccumulative Potential: Estimated low potential to bioaccumulate due to ionic nature, but data is incomplete.
Mobility in Soil: Shows moderate mobility in water-saturated soils; may migrate to water systems if spilled.
Other Adverse Effects: Avoid allowing product to reach water systems, sewage, or soil due to potential environmental harm.
Waste Treatment Methods: Dispose of product and contaminated materials as hazardous chemical waste through licensed waste contractors. Do not discharge into drains or the environment.
Packaging: Decontaminate empty containers or dispose in accordance with local, state, and national regulations.
Special Instructions: Incineration at high temperatures in a licensed facility can destroy persistent organic materials. Review all applicable local and national environmental regulations before disposal.
UN Number: Not classified as a dangerous good under most international transport guidelines (ADR, IMDG, IATA).
Transport Hazard Class(es): No specific hazard class; ship as a chemical good but observe spill precautions.
Packing Group: Not assigned
Special Precautions for Users: Secure containers for transport. Prevent leakage during shipment.
Environmental Hazards: Marine pollutant classification may apply in some regions based on local transport regulations.
Regulatory Status: This substance does not appear on major chemical regulatory lists (REACH, TSCA, DSL) but check updates for your jurisdiction.
Labeling Requirements: Follow standard hazard communication protocols using GHS/CLP labels and safety signage.
SARA Title III: Not listed
California Proposition 65: Not listed
International Inventories: Not registered on the EINECS or other global chemical inventories as of this year; manufacturers may hold CBI or pre-registration.
Other Requirements: Ensure proper documentation, staff training, and records of handling and disposal according to workplace safety and environmental rules within your region.
