Material Safety Data Sheet: Fluoroethylene Carbonate (FEC)

Identification

Product Name: Fluoroethylene Carbonate
Common Names: FEC, 4-Fluoro-1,3-dioxolan-2-one
Chemical Formula: C3H3FO3
CAS Number: 114435-02-8
Recommended Use: Electrolyte additive in lithium-ion batteries, solvent in organic synthesis
Manufacturer Details: Listed on product packaging or supplier information sheets
Emergency Contact: Local poison control or international emergency response center phone number, referenced as per regional regulations

Hazard Identification

GHS Classification: Acute Toxicity (oral): Category 4, Skin Irritation: Category 3, Eye Irritation: Category 2A
Hazard Pictograms: Exclamation mark symbol
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation
Precautionary Statements: Avoid breathing vapor, wash hands thoroughly after handling, wear protective gloves and eye protection, if in eyes rinse cautiously with water for at least 15 minutes, remove contact lenses, seek medical attention if irritation persists, and do not eat, drink, or smoke during use

Composition / Information on Ingredients

Chemical Name: Fluoroethylene Carbonate
Synonyms: 4-Fluoro-1,3-dioxolan-2-one
Concentration: Typically >98% by weight
Impurities: Residual solvents less than 1%, minor organic fluoride compounds
Molecular Weight: 106.05 g/mol
EC Number: 681-500-6

First Aid Measures

Inhalation: Remove person to fresh air, keep comfortable, seek medical attention for persistent symptoms
Skin Contact: Wash with soap and water for at least 15 minutes, remove contaminated clothing, consult a physician for irritation
Eye Contact: Rinse eyes with water for at least 15 minutes holding eyelids open, remove contact lenses, seek medical advice
Ingestion: Rinse mouth with water, do not induce vomiting, keep person calm, seek immediate medical assistance
Notes to Physician: Treat symptoms, monitor for respiratory or nervous system effects

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical powder, carbon dioxide, alcohol-resistant foam
Hazardous Combustion Products: Hydrogen fluoride, carbon oxides, toxic fumes
Special Protective Equipment: Firefighters use self-contained breathing apparatus, full protective gear
Fire Fighting Instructions: Move containers from fire area if safe, avoid inhaling fumes, use water spray for cooling containers, prevent runoff from entering water sources

Accidental Release Measures

Personal Precautions: Use recommended PPE including gloves, goggles, lab coat, and proper respiratory protection for vapors
Environmental Precautions: Prevent spillage from entering drains, soil, or waterways
Containment Methods: Absorb with inert material such as sand or vermiculite, collect in sealed containers for proper disposal
Cleanup Procedures: Ventilate area well, wash spill site with soap and water after material pickup, dispose in accordance with local regulations, minimize vapor exposure

Handling and Storage

Safe Handling Instructions: Handle in well-ventilated area, avoid contact with skin and eyes, avoid inhaling vapors, use spill containment systems in storage rooms
Storage Conditions: Store in tightly sealed containers, keep in cool, dry, well-ventilated places away from direct sunlight, incompatible substances such as strong oxidizers, acids, and bases
Hygiene Measures: Wash hands after handling, remove contaminated clothing before entering eating areas, avoid cross-contamination between workspaces

Exposure Controls and Personal Protection

Engineering Controls: Use chemical fume hood, mechanical ventilation, explosion-proof equipment where necessary
Exposure Limits: No established occupational exposure limits, consult employer health and safety guidelines
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), protective clothing such as lab coats, safety goggles, face shields, appropriate respiratory protection if exposure levels are high or ventilation is inadequate
Environmental Controls: Enclose processes to prevent release, provide eye wash stations and safety showers in workspace, monitor air quality regularly

Physical and Chemical Properties

Appearance: Colorless to pale yellow liquid
Odor: Mild, characteristic odor
Odor Threshold: Not determined
pH: Not applicable
Melting Point/Freezing Point: -47°C
Boiling Point: 198°C at standard pressure
Flash Point: 113°C (closed cup)
Evaporation Rate: No data available
Flammability: Slightly flammable liquid
Upper/Lower Flammability Limits: Not determined
Vapor Pressure: 0.11 mm Hg at 25°C
Vapor Density: Heavier than air
Solubility: Miscible with organic solvents, low solubility in water
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: No data available
Decomposition Temperature: No data available
Viscosity: No data available

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Reactivity: Reacts with bases, strong acids, strong oxidizing agents
Hazardous Reactions: Can generate hydrogen fluoride and other toxic gases with water, alkalis, or during thermal decomposition
Polymerization: Does not polymerize under normal use
Conditions to Avoid: Excessive heat, sources of ignition, contact with incompatible materials
Incompatibilities: Sodium/potassium, strong alkali metals, strong reducing agents, oxidizers

Toxicological Information

Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: Harmful if swallowed, causes skin and eye irritation, LD50 (oral, rat): estimated 500-2000 mg/kg
Chronic Effects: No long-term studies available, potential for cumulative toxicity after repeated exposure
Symptoms: Burning sensation in eyes and throat, nausea, vomiting, headache, drowsiness on inhalation of high concentrations
Carcinogenicity: Not listed as carcinogen by IARC, NTP, or OSHA
Other Data: Sensitization not expected, mutagenicity and reproductive toxicity not well studied

Ecological Information

Ecotoxicity: Toxic to aquatic organisms, potential for long-term adverse effects in aquatic environment
Persistence and Degradability: Not readily biodegradable, may persist in soil and water
Bioaccumulation Potential: Not expected to bioaccumulate significantly, data limited
Mobility in Soil: Moderate mobility, may reach groundwater in large spills
Other Adverse Effects: Releases of fluoride compounds can further threaten aquatic and plant life through acidification and fluorosis

Disposal Considerations

Waste Disposal Methods: Dispose as hazardous organic waste by incineration in a chemical waste facility, comply with local, national, and regional regulations
Container Disposal: Triple rinse empty containers, dispose according to environmental regulations, do not reuse containers for other purposes
Other Recommendations: Avoid release into the environment, keep contaminated waste segregated, use licensed chemical disposal contractors where available

Transport Information

UN Number: 3272
UN Proper Shipping Name: Esters, N.O.S. (Fluoroethylene Carbonate)
Transport Hazard Class: 9 Miscellaneous dangerous substances
Packing Group: III
Labels Required: Class 9 – Miscellaneous dangerous goods
Special Transport Precautions: Secure containers during transport, avoid extreme temperatures, report accidental leakage or spills to authorities
Environmental Hazards: Regulated as a marine pollutant, especially in bulk quantities

Regulatory Information

US Federal Regulations: TSCA listed, SARA 313 not applicable, CERCLA not listed
EU Regulations: Listed in EINECS/ELINCS, subject to REACH registration and restrictions
Other International Inventories: Listed on Canada DSL, Australia AICS, China IECSC, Japan ENCS
Labeling Requirements: GHS label elements including hazard and precautionary statements described above, product identifier, and supplier contact
Workplace Classification: Regulated under OSHA Hazard Communication Standard and EU Classification, Labelling and Packaging (CLP) Regulation
Other Restrictions: Subject to specific local codes regarding battery manufacturing and chemical waste