Product Name: Tetrabutylphosphonium Tetrafluoroborate
Chemical Formula: C16H36BF4P
CAS Number: 24444-88-6
Manufacturer / Supplier: Chemical distributor details on shipment label
Intended Use: Chemical research, ionic liquid formulations, electrochemistry
Contact Numbers: Emergency and information numbers printed on container and MSDS
Email Contact: Provided on product order confirmation
Recommended Restrictions: Not intended for household use or food applications
Classification: Acute toxicity (oral, dermal, inhalation), skin and eye irritation ingredient
Hazard Symbols: Exclamation mark (GHS07), corrosive (GHS05)
Signal Word: Warning
Hazard Statements: Harmful if swallowed; causes skin and eye irritation; toxic to aquatic life
Precautionary Statements: Avoid breathing dust/fume/gas/mist/vapors/spray; wash skin thoroughly after handling; avoid release to the environment
Main Routes of Exposure: Skin contact, inhalation, ingestion, eye contact
Emergency Overview: White crystalline solid or off-white powder, faint odor, may irritate skin, eyes, and respiratory tract
Chemical Name: Tetrabutylphosphonium Tetrafluoroborate
Synonyms: TBPBF4, Phosphonium salt
CAS Number: 24444-88-6
EC Number: 246-447-4
Concentration: 98-100% pure by weight
Impurities: Trace levels of butylphosphonium species possible
Other Components: None relevant to classification or labeling
Inhalation: Move person to fresh air, support breathing as needed, seek medical attention if symptoms develop or persist
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with soap and water for at least 15 minutes, medical advice required for persistent irritation
Eye Contact: Rinse cautiously under running water for minimum 15 minutes, hold eyelids apart, remove contact lenses if present and easy to do, consult specialist
Ingestion: Rinse mouth, do not induce vomiting, give small amounts of water if victim is conscious, seek immediate medical help, provide product packaging to healthcare provider
Acute/Delayed Effects: Possible irritation, vomiting, abdominal pain, chemical burns on mucosa dependent on exposure amount
Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, foam; water spray may be used for cooling containers
Unsuitable Media: Direct water stream might spread material
Specific Hazards: May emit toxic fumes such as hydrogen fluoride, phosphorus oxides, and boron trifluoride during combustion
Firefighting Instructions: Use self-contained breathing apparatus and full protective gear, evacuate area, keep containers cool with water spray
Explosion Hazards: Not expected to form explosive dust-air mixtures under normal conditions; avoid sources of ignition
Personal Precautions: Wear appropriate PPE including gloves, goggles, and respirator, evacuate unprotected personnel
Environment Precautions: Prevent spills from entering drains, surface water, or soil
Methods for Containment: Dike and absorb material with inert absorbent (vermiculite, sand, earth), avoid raising dust
Clean-up Procedure: Collect solid product with shovel or broom, place material in labeled, closed container for disposal
Decontamination: Wash spill site after material pickup, ventilate area, dispose contaminated materials per local regulations
Precautions for Safe Handling: Only use with adequate ventilation, avoid contact with eyes or skin, do not breathe dust, do not eat, drink or smoke during use, keep away from open flames and statically charged surfaces
General Hygiene: Wash hands thoroughly after handling, remove contaminated clothing and wash before reuse
Storage Requirements: Store in tightly closed original container in cool, dry, well-ventilated area, avoid moisture and direct sunlight, separate from strong acids and oxidizing agents
Storage Incompatibilities: Incompatible with strong oxidizers, acids, water-reactive substances
Shelf Life: Stable under recommended storage conditions, but excessive moisture can degrade product quality over time
Occupational Exposure Limits: No ACGIH or OSHA-specific limits; minimize exposure as general good laboratory practice
Engineering Controls: Work under chemical fume hood or with local exhaust ventilation, use sealed processes when feasible
Respiratory Protection: Wear NIOSH/MSHA-approved respirator if dust or aerosols form
Skin Protection: Use impervious gloves (nitrile, PVC, neoprene), chemical-resistant lab coat or apron
Eye Protection: Safety goggles with side shields, face shield if risk of splashes
Environmental Controls: Avoid uncontrolled release, monitor emissions in workplace around handling and storage areas
Appearance: White to off-white crystalline solid or powder
Odor: Mild, characteristic bland chemical odor
Melting Point: 105–115°C
Boiling Point: Decomposes before boiling
Flash Point: Information not available, treat as combustible
Solubility: Readily dissolves in water, alcohols, acetone, and many polar and some non-polar solvents
Vapor Pressure: Negligible at ambient temperatures
Density: Approx. 1.1–1.3 g/cm³ at 20°C
pH (1% solution): Slightly acidic
Partition Coefficient (log Pow): Not determined
Evaporation Rate: Data not provided, low at room temperature
Chemical Stability: Stable at ambient temperature and pressure, sensitive to heat and moisture
Thermal Decomposition: Releases toxic gases at elevated temperatures including boron and phosphorus compounds, hydrogen fluoride
Hazardous Polymerization: Will not occur under intended conditions of use
Incompatible Materials: Strong acids, oxidizers, alkali metals, moisture
Reactive Hazards: Contact with water or acids can release dangerous gases, avoid mixing with flammable solvents
Conditions to Avoid: Excessive heat, humidity, ignition sources, direct sunlight during extended storage
Likely Exposure Routes: Skin, eye, inhalation, ingestion
Acute Toxicity Data: LD50 not fully established due to limited studies; analog substances harmful orally and dermally in animals
Symptoms: Eye and skin redness, irritation, burning sensation, cough, abdominal pain, possible systemic toxicity at high doses
Sensitization: Not a confirmed skin sensitizer but similar phosphonium salts occasionally reported sensitizing
Delayed Effects: Chronic exposure may lead to respiratory irritation or dermatitis
Carcinogenicity/Mutagenicity/Reproductive Toxicity: No available evidence based on current studies
Additional Information: No known reports of adverse health effects in properly controlled laboratory and industrial applications
Ecotoxicity: Toxic to aquatic organisms, risk of long-term adverse effects in aquatic environment
Mobility in Soil: Moderately mobile, soluble in water; possible groundwater contaminant if released to large amounts
Persistence and Degradability: Slow biodegradation, potential for bioaccumulation remains unclear
Aquatic Toxicity: Acute and chronic studies limited; comparison to other tetraalkylphosphonium salts suggests risk with discharge
Other Effects: Discharge to environment requires regulatory approval and monitoring
Waste Treatment Methods: Dispose through licensed hazardous waste contractor, chemical incineration preferred
Disposal of Contaminated Packaging: Triple rinse, offer to approved waste disposal companies, comply with local, regional, and national environmental laws
Waste Classification: Classified as hazardous under many national chemical waste regulations
Precautions: Do not allow product or contaminated water to enter drains, sewers, water bodies, or natural environments
UN Number: Not classified for bulk transport under UN Recommendations
Proper Shipping Name: Tetrabutylphosphonium Tetrafluoroborate (chemical, solid, n.o.s. for regulatory documents)
Transport Hazard Class: Considered hazardous for ground/air/sea transport in some jurisdictions depending on amount and container type
Packing Group: III (if applicable)
Marine Pollutant: Avoid bulk transport by sea, check reach/IMDG thresholds for aquatic toxicity
Special Transport Precautions: Protect from mechanical damage, moisture ingress, direct sunlight and keep containers sealed
Labeling Requirements: Classified under OSHA Hazard Communication Standard, EU CLP Regulation, GHS
TSCA Status (US): Listed or accepted under “premanufacture notification” for research and development
REACH Status (EU): Not listed on Annex XIV; subject to registration, restriction depending on quantity and application
Other Inventories: Included in chemical inventories or subject to notification in Canada (DSL/NDSL), Australia (AICS), Japan (ENCS); consult local government regulations
Hazard Pictograms: GHS07 (Exclamation Mark), GHS05 (Corrosive)
Regulatory Restrictions: Controlled use for scientific, medical, or industrial applications; disposal and emission restrictions enforced nationally
Worker Training: Required for all handlers, including hazard recognition, safe practices, emergency response procedures
