Product Name: Methyltriethylammonium Tetrafluoroborate
Synonyms: N,N,N-Triethylmethylammonium tetrafluoroborate
Product Code: MTETFB-001
Recommended Use: Laboratory chemical, Electrolyte in battery research
Supplier: Chemical supplier information provided on request
Emergency Phone: Emergency assistance provided by local poison control center and fire department
CAS Number: 15587-85-0
UN Number: 3264 (Corrosive liquid, acidic, inorganic, n.o.s.)
Contact E-Mail: Environmental health and safety office or supplier’s regulatory affairs contact
GHS Classification: Eye Irritation Category 2A, Skin Irritation Category 2, Acute Toxicity Category 4 (oral)
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation, harmful if swallowed, may cause respiratory irritation
Pictograms: Exclamation mark, Corrosive
Precautionary Statements: Use gloves and protective goggles, avoid inhalation of dust or vapors, wash hands thoroughly after handling, store locked up, dispose of contents as hazardous waste
Other hazards: Exposure to moisture can release toxic gases, reacts with acids liberating hydrofluoric acid
Chemical Identity: Methyltriethylammonium tetrafluoroborate
CAS Number: 15587-85-0
EC Number: 239-649-3
Purity: >98% by GC
Impurities: May contain residual triethylamine or acidic byproducts
General advice: Seek immediate medical attention for any exposure above minor skin or eye contact
Inhalation: Move to fresh air, keep at rest, seek medical attention if coughing, irritation or respiratory discomfort develops
Skin Contact: Remove contaminated clothing, wash skin with soap and water, seek care if irritation or burns appear
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, seek immediate ophthalmological advice
Ingestion: Rinse mouth, do not induce vomiting, seek urgent medical care, provide material label to emergency responders
Most important symptoms: Burning sensation in eyes or on skin, coughing, shortness of breath, nausea, stomach pain
Suitable Extinguishing Media: Dry powder, foam, carbon dioxide, do not use water jets
Specific Hazards: On heating or contact with fire, releases toxic and corrosive fumes of boron trifluoride and hydrogen fluoride
Special Protective Equipment: Self-contained breathing apparatus, full protective gear, chemical splash suit
Advice for Firefighters: Approach fire from upwind, contain runoff and prevent entry into drains, cool containers exposed to flames with water spray from a safe distance
Personal Precautions: Wear chemically resistant gloves, eye protection, and appropriate clothing, ventilate area
Environmental Precautions: Prevent entry into sewers, surface, or groundwater, contain spillage with noncombustible absorbent
Methods for Cleanup: Scoop or sweep up solid material, transfer to labeled, sealed container for disposal, wash spill area with sodium bicarbonate solution or dilute calcium gluconate to neutralize any hydrofluoric acid
Emergency Procedures: Evacuate nonessential personnel, consult local environmental protection agency for disposal
Handling: Use only in chemical fume hood or well-ventilated area, avoid generation of dust, wear protective gloves and eye shield, do not eat, drink, or smoke during handling
Storage: Store in cool, dry, tightly closed container, keep away from moisture, acids, or incompatible chemicals, segregate from oxidizers and strong bases, label container clearly, keep out of reach of unauthorized personnel
Engineering Controls: Chemical fume hood, adequate general ventilation, eyewash station, and emergency safety shower in vicinity
Personal Protective Equipment: Safety goggles, chemical-resistant gloves (nitrile or neoprene), laboratory coat, long pants, closed-toe shoes
Respiratory Protection: NIOSH-certified respirator suitable for particulates if handling large quantities or dusts, never use in confined or poorly ventilated space
Hygiene Measures: Remove contaminated clothing and wash thoroughly before reuse, avoid skin contact, wash hands thoroughly after handling
Environmental Exposure Controls: Implement spill containment, do not discharge to natural waters, comply with environmental regulations for emissions
Appearance: White to off-white crystalline powder
Odor: Slightly amine-like
Odor Threshold: Not established
pH (1% solution): 5.5-6.5
Melting Point/Freezing Point: 169-175°C
Initial Boiling Point: Decomposes before boiling
Flash Point: Not flammable
Evaporation Rate: Not volatile
Flammability (solid, gas): Not flammable under standard conditions
Explosive Limits: No data available
Vapor Pressure: Negligible at 20°C
Vapor Density: Not applicable
Relative Density: 1.08-1.12 g/cm³ (20°C)
Solubility: Highly soluble in water, methanol, ethanol
Partition Coefficient (n-octanol/water): Not established
Decomposition Temperature: Decomposes above 200°C, emits toxic fumes
Viscosity: Not applicable
Chemical Stability: Stable under recommended storage and handling conditions
Conditions to Avoid: Exposure to moisture, high humidity, heat sources, acids
Incompatible Materials: Strong oxidizers, strong acids, reducing agents, moisture, bases
Hazardous Decomposition Products: Boron trifluoride, hydrogen fluoride, carbon oxides, triethylamine vapors
Possibility of Hazardous Reactions: Contact with moisture or acids liberates toxic or corrosive gases
Acute Toxicity: Harmful if swallowed, may cause abdominal pain, vomiting, diarrhea
Skin Corrosion/Irritation: Causes skin irritation, may cause burns on prolonged exposure
Serious Eye Damage/Irritation: Causes eye irritation or damage
Respiratory Sensitization: May cause airway irritation
Carcinogenicity: Not listed as carcinogen by IARC, NTP, or OSHA
Mutagenicity: No specific studies available
Reproductive Toxicity: Not established
Repeated Dose Toxicity: No long-term toxicity data available
Symptoms: Burning sensation, cough, sore throat, redness or blistering of the skin, eye redness and pain
Toxicity: Toxic to aquatic life, avoid environmental contamination, may disrupt aquatic organisms at low concentrations
Persistence and Degradability: Not readily biodegradable, persistent in the environment without advanced treatment
Bioaccumulative Potential: No significant bioaccumulation expected
Mobility in Soil: Highly soluble, may migrate through soil and reach groundwater
Other Adverse Effects: Fluorinated components contribute to long-term environmental burden, follow best practices for disposal
Waste Treatment Methods: Collect and place in approved hazardous waste container, dispose at licensed chemical waste facility
Product Disposal: Use licensed professional waste disposal service, incinerate safely at hazardous waste plant
Contaminated Packaging: Decontaminate before disposal or treat as chemical waste
Environmental Precautions: Avoid release to soil, drains, surface or groundwater, comply with all local, national, and international waste regulations
UN Number: 3264
Proper Shipping Name: Corrosive liquid, acidic, inorganic, n.o.s. (Contains tetrafluoroborate salt)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: III
Environmental Hazards: Contains environmentally hazardous components as defined by applicable regulations
Special Precautions: Transport in tightly sealed, labeled containers, protect from moisture, follow all national and international guidelines for shipment of hazardous chemicals
OSHA Hazards: Classified as hazardous under OSHA Hazard Communication Standard
SARA Title III (Sections 302/304/311/312/313): SARA 311/312 covers acute health and reactivity hazards
TSCA Status: Listed
Europe (REACH): Substance subject to registration, safety data maintained in compliance with REACH requirements
California Proposition 65: Not listed
Other National Inventories: Included as hazardous under Canadian, Japanese, Korean, Australian, and Chinese chemical inventories
Label Elements: All packaging must display hazard pictograms, signal word, hazard and precautionary statements in line with GHS and local regulations
