Chemical Name: Lithium Bis(Fluorosulfonyl)Imide
Synonyms: Lithium FSI
Recommended Use: Electrolyte additive for lithium-ion batteries
Chemical Formula: Li[N(SO2F)2]
Manufacturer: Specialty battery materials supplier
Emergency Contact: Refer to national chemical emergency hotline
CAS Number: 171611-11-3
Classification: Skin irritation, Eye damage, Specific target organ toxicity (single exposure)
Signal Word: Danger
Hazard Statements: Causes severe skin burns, serious eye damage, harm to respiratory tract if dust or fumes inhaled
Pictogram: Corrosion, Exclamation mark
Precautionary Statements: Avoid contact with skin, eyes, and clothing. Use only outdoors or in well-ventilated area.
Routes of Exposure: Inhalation, Skin contact, Eye contact, Ingestion
Symptoms: Burning, redness, blurred vision, cough, sore throat, gastrointestinal upset, breathing discomfort
Component: Lithium Bis(Fluorosulfonyl)Imide
Content: >99% by weight
Impurities: Inorganic lithium salts traces, process solvent residues (low ppm)
Molecular Weight: 187.07 g/mol
Relevant Impurities: None at hazardous concentrations
Inhalation: Remove to fresh air, keep at rest. Seek medical attention if symptoms develop or persist.
Skin contact: Immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing.
Eye contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do.
Ingestion: Rinse mouth with water. Do not induce vomiting. Get medical help.
Note to Physician: Treat symptomatically, consider possibility of corrosive damage to mucous membranes.
Suitable Extinguishing Media: Dry chemical, CO2, foam. Avoid water on spillage.
Unsuitable Extinguishing Media: Water jets directly onto chemical, as reactivity with lithium component is possible.
Hazardous Combustion Products: Toxic, corrosive fumes such as HF, SO2, lithium oxides, nitrogen oxides.
Protective Equipment: Full protective suit including self-contained breathing apparatus
Firefighter Advice: Keep upwind, avoid inhaling smoke. Cool containers with water spray from safe distance.
Personal Precautions: Evacuate unnecessary personnel. Wear full protective clothing (nitrile gloves, goggles, respirator).
Environmental Precautions: Prevent runoff into drains, surface water, soil.
Cleanup Methods: Use non-sparking tools. Absorb with inert dry material (vermiculate, sand), collect in sealable container.
Decontamination: Rinse area thoroughly with plenty of water after removal of residue.
Disposal: Follow regulatory requirements for disposal of hazardous materials.
Handling: Use only in chemical fume hood or equivalent engineered ventilation. Prevent dust and fume formation. Avoid all contact with skin and eyes. Wear disposable gloves, lab coat, goggles at minimum.
Storage: Store in tightly closed original container in a cool, dry place away from sunlight and moisture. Segregate from acids, strong oxidizers, water, and reactive metals.
Storage Class: Corrosive materials cabinet
Special Instructions: Keep away from combustible materials, sources of ignition, and avoid physical damage to container.
Engineering Controls: Chemical fume hood, local exhaust ventilation
Personal Protective Equipment: Nitrile gloves, chemical splash goggles, face shield, flame-retardant lab coat, closed shoes
Respiratory Protection: Use NIOSH/MSHA-approved particulate respirator if dust or aerosols generated
Hand Protection: Replace gloves if contaminated or torn
Eye/Face Protection: Wear safety goggles with side shields and face shield
Exposure Limit: No occupational exposure limit established; minimize exposure as much as possible
Hygiene Measures: Wash hands and face after use, remove contaminated clothing before entering other work areas.
Appearance: White to off-white crystalline powder
Odor: Odorless
Odor Threshold: Not available
pH: Acidic when dissolved in water (approx. 2)
Melting Point: 124 °C
Boiling Point/Range: Decomposes before boiling
Decomposition Temperature: Above 200 °C (decomposition with toxic fume generation)
Flash Point: Data not available
Autoignition Temperature: Not applicable
Flammability: Not flammable but may contribute to fire in presence of combustibles
Vapor Pressure: Negligible at room temperature
Density: 1.58 g/cm³
Solubility in Water: Readily soluble and exothermic reaction
Partition Coefficient (log Kow): Data not available
Evaporation Rate: Not applicable
Viscosity: Not applicable
Molecular Weight: 187.07 g/mol
Chemical Stability: Stable under normal conditions if kept dry and away from heat, light, and incompatible materials
Conditions to Avoid: Moisture, water, high temperature, contact with strong acids or oxidizing agents
Incompatible Materials: Water, acids, bases, oxidizers, strong reducing agents
Hazardous Decomposition Products: Toxic corrosive gases including hydrogen fluoride, sulfur dioxide, nitrogen oxides, lithium compounds
Reactivity: Reacts exothermically with water and strong acids
Polymerization: Will not occur spontaneously
Acute Toxicity: May cause severe irritation, burns to skin, eyes, and respiratory or gastrointestinal tract
Skin Corrosion/Irritation: Causes redness, dryness, crackling, severe burns
Eye Damage/Irritation: Permanent damage possible if not promptly washed out
Respiratory Effects: Cough, sore throat, difficulty breathing after inhalation of dust or fumes
Ingestion: Corrosive injury, pain, abdominal cramps, nausea, vomiting
Chronic Effects: Repeated exposure can result in dermatitis, lung irritation, ulceration
Carcinogenicity: Not classified as carcinogenic to humans
Mutagenicity: No data available
Reproductive Toxicity: No data available
Target Organs: Eyes, skin, mucous membranes, respiratory and gastrointestinal tracts
Symptoms: Severe pain, burns, ulcers, impaired vision if splashed in eyes
Ecotoxicity: Harmful to aquatic organisms, may cause long-term adverse effects in aquatic environments
Aquatic Toxicity: No quantitative data; structurally related salts show moderate to high toxicity to fish, invertebrates
Persistence and Degradability: Not readily biodegradable; persists in environment
Bioaccumulative Potential: No data, but lithium ions can bioaccumulate in aquatic species
Mobility in Soil: Mobile, especially in sandy or low organic soils; potential to reach groundwater
Other Adverse Effects: Hydrolysis releases harmful, corrosive acids which alter pH of water bodies
Environmental Fate: Remains present, persists for months without adequate remediation
Disposal Methods: Treat as hazardous chemical waste. Collect in clearly labeled, sealed, chemical resistant containers.
Treatment: Contact licensed chemical waste disposal contractors. Neutralization with lime may generate large heat and gas.
Regulations: Do not pour into drains or environment. Follow municipal, regional, and national regulations for disposal.
Contaminated Packaging: Handle as hazardous waste, incinerate with flue gas scrubbing
Recycle/Reuse: Not practical, risk outweighs benefit in standard labs
UN Number: 3260
UN Proper Shipping Name: Corrosive solid, acidic, organic, n.o.s. (lithium bis(fluorosulfonyl)imide)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: II
Environmental Hazards: Dangerous for the environment, marine pollutant
Special Precautions: Avoid generating dust, transport with compatible materials only
Bulk Transport: As per MARPOL and IBC Code, ensure containment and spill protection
EU Regulations: Listed under REACH, subject to registration and safety evaluation
TSCA Status (US): Substance may require review under Toxic Substances Control Act
WHMIS Classification (Canada): Class E - Corrosive Material
SARA/OSHA: Meets criteria for hazardous substance
Labeling: GHS-compliant labels recommended, including hazard pictograms, signal word, hazard statements, precautionary statements
National/Local Regulations: Handle, store, and dispose in accordance with country-specific occupational, environmental, and transport controls.
Other Information: Transport and sale may be restricted to professional users, regulated industries, or registered entities.
