Product Name: N-Ethyl-N-Methylpyrrolidinium Tetrafluoroborate
Synonyms: 1-Ethyl-1-methylpyrrolidinium tetrafluoroborate, EMPyrr BF4
CAS Number: 244108-75-8
Recommended Use: Electrolyte additive, solvent and ionic liquid applications, research and laboratory settings
Supplier Information: [Provide manufacturer contact details]
Emergency Contact: [24-hour emergency number]
Classification: Not classified as hazardous under GHS; irritation to eyes, skin, and respiratory tract possible with direct contact or inhalation
Label Elements: Signal word: Caution; Hazard statement: May cause mild skin or eye irritation, avoid prolonged exposure with mucous membranes
Precautionary Statements: Avoid contact with skin and eyes, prevent inhalation of dust or vapors, ensure good ventilation; if handled in open air, wear suitable protection
Other Hazards: Prolonged exposure above recommended temperatures might break down to hazardous byproducts; avoid contact with strong acids or bases
Chemical Identity: N-Ethyl-N-Methylpyrrolidinium Tetrafluoroborate
Molecular Formula: C7H16BF4N
Molecular Weight: 203.02 g/mol
Impurities: May contain trace amounts below 1% each: moisture, residual solvents from production process, unavoidable by-products (as verified by certificate of analysis per manufacturing batch)
Concentration: Typically supplied at >98% purity
Inhalation: Move affected person to fresh air, seek medical attention if coughing or symptoms persist
Eye Contact: Flush eyes gently with plenty of running water for at least 15 minutes, look for redness or pain, remove contact lenses if worn, get medical advice if irritation continues
Skin Contact: Remove contaminated clothing immediately, wash affected area thoroughly with large amounts of soap and water, watch for delayed reactions and persistent irritation
Ingestion: Do not induce vomiting, rinse mouth with water, give a small amount of water for dilution, consult a doctor or poison control center, bring sample or label if possible
Symptoms of Exposure: May include redness, itchiness, mild stinging of skin or eyes, upper respiratory irritation for dust or vapor exposure
Suitable Extinguishing Media: Use dry chemical, CO₂, foam, or water spray; pick method suited to surroundings
Specific Hazards: During fire, product can decompose to toxic gases such as hydrogen fluoride, boron trifluoride, methyl/ethyl derivatives, and other corrosive vapors
Protective Equipment: Wear self-contained breathing apparatus and full protective gear to prevent skin and lung exposure; avoid inhalation of fumes
Special Procedures: Approach upwind to avoid vapors, contain runoff water, cool piles or containers with water spray away from product itself
Personal Precautions: Evacuate unprotected staff from the area, ventilate space properly, wear chemical-resistant gloves, splash-proof goggles, and protective clothing
Environmental Precautions: Prevent product from entering drains, surface water, or soil; contain spill using non-combustible absorbents (sand, vermiculite, inert clay)
Cleanup Methods: Collect solid or liquid spills with inert material and place into suitable, sealable waste containers; wash contaminated area with water and detergent; ensure thorough decontamination of equipment used
Disposal: Waste materials should be handled in accordance with local, state, and national regulations using properly permitted facilities
Handling: Wear personal protective equipment to prevent skin, eye, or respiratory exposure; handle only in well-ventilated areas away from any source of extreme heat or open flame; clean up accidental spills immediately using appropriate PPE
Storage: Store in tightly closed containers made of compatible materials (glass, plastic, or lined metal); keep away from moisture, direct sunlight, and sources of ignition; store at room temperature in a designated chemical area with secondary containment to prevent environmental contamination
Special Conditions: Segregate from incompatible substances such as strong oxidizers or acids; label storage area and containers clearly with contents and hazard information
Engineering Controls: Work in fume hood or use local exhaust ventilation for processes with potential for vapor or contaminant release
Exposure Limits: No established workplace exposure limits; minimize all exposures on a best practice basis
Personal Protection: Chemical-resistant gloves (nitrile, neoprene recommended), splash-proof goggles, lab coat or apron that resists chemical penetration; use NIOSH-approved respirator if airborne dust or vapor concentrations are elevated or in confined space
Hygiene Measures: Wash hands and face before eating, drinking, or using bathroom; do not take protective equipment home; launder contaminated clothing before reuse
Appearance: Colorless to pale yellow liquid or solid (depends on storage temperature reversal)
Odor: Mild, may have faint amine-like scent
Melting Point: Ranges between 10–20°C (varies with water content and batch purity)
Boiling Point: Decomposes before boiling if exposed to high heat
Solubility: Fully miscible with water and organic solvents like acetonitrile
Density: 1.15–1.25 g/cm³ (at 25°C)
Vapor Pressure: Negligible at ambient conditions
pH: Neutral to slightly acidic
Partition Coefficient: Not available
Flash Point: No flash point under standard test conditions
Other Properties: Viscosity varies based on water content and temperature; may absorb moisture from air (hygroscopic)
Chemical Stability: Product stable under standard temperature and pressure for storage; keep away from moisture to avoid hydrolysis
Reactive Materials: Avoid strong oxidizing agents, strong acids, alkalis, aluminum, and magnesium; product will not polymerize
Decomposition: Decomposes above 100°C; decomposition gives toxic and corrosive vapors including fluoride-containing gases and boron/amide derivatives
Incompatible Conditions: Excessive heat, direct sunlight, and humidity can accelerate breakdown; exposure to strong bases or acids may cause violent reaction
Acute Toxicity: Data limited; oral and dermal LD50 not fully established, likely to cause moderate effects on large exposures based on structurally similar compounds
Skin Irritation: Potential for mild, transient irritation; rare but possible allergic reactions in sensitized individuals
Eye Irritation: May produce redness, stinging, or watering if splashed into eyes; symptoms usually resolve with prompt rinsing
Respiratory Effects: Dust or vapor exposure can cause throat and lung irritation; high levels or prolonged exposures not recommended
Chronic Effects: No long-term toxicity data available for humans; not classified as carcinogen or mutagen under current regulations; limited animal data point to low chronic risk at occupational concentrations
Routes of Exposure: Inhalation, skin contact, accidental ingestion
Ecotoxicity: No specific ecosystem hazard classification, but like many ionic liquids, possible impact on aquatic life due to slow biodegradation
Persistence/Degradability: Not readily biodegradable; tends to persist under standard environmental conditions
Bioaccumulation: No data suggesting significant bioaccumulation in food chains; likely low based on physical constants and structure
Mobility: Fully water soluble; can migrate in aquatic systems if uncontrolled spill occurs
Other Adverse Effects: Wastewater and laboratory drains not recommended routes for disposal; dilute concentrations can disrupt aquatic microbial activity if released
Waste Treatment Methods: Incinerate liquid or absorbed waste in permitted chemical incinerators with afterburner and scrubber system; comply with local and international regulations on hazardous waste disposal
Container Disposal: Triple rinse empty containers prior to disposal; send to licensed drum recycler or chemical waste processor
Do Not: Allow into public sewers, open water courses, or general garbage streams
Special Precautions: Neutralize small residues under chemical supervision before waste shipment; document waste origin and characteristics
UN Number: Not regulated as dangerous goods for transport by land, sea, or air in most jurisdictions; confirm local regulations before large shipments
Proper Shipping Name: Not classified under standard UN codes
Transport Hazard Class: Non-hazardous for most commercial carriers
Packing Group: Not assigned
Marine Pollutant: Not classified as marine pollutant, but avoid uncontrolled marine release
Special Transport Precautions: Ship in original containers tightly sealed, use secondary containment for large volumes, mark package clearly as chemical product
GHS Classification: Not classified as hazardous substance; worker protection rules still apply for chemical handling
US TSCA: Registered for laboratory use; professional application only
EU REACH: Not subject to full restriction, but must comply with general chemical safety requirements
Canada DSL/NDSL: Verify with latest regulations; not generally listed as restricted
Other International Standards: Not listed as Carcinogenic, Eco-toxic, or Priority Chemical under major global inventories as of last update
Labeling Requirements: Follow local rules for chemical hazard communication, ensure workplace safety sheets and training align with the most recent version
