Product Name: Ethyltributylphosphonium Hexafluorophosphate
Synonyms: ETBP·PF6, Phosphonium, ethyltributyl-, hexafluorophosphate
CAS Number: 500351-70-4
Recommended Uses: Catalysis, phase transfer agent, ionic liquid applications
Manufacturer Name: Available on shipping documents
Emergency Contact: Refer to product label or shipping documents for up-to-date emergency telephone information
Address: Refer to manufacturer or supplier documentation for address details
Product Code: Listed on container and invoice paperwork
GHS Classification: Acute toxicity (oral, skin, inhalation), Skin irritation, Serious eye irritation, Specific target organ toxicity - single exposure
Signal Word: Warning
Hazard Pictograms: Exclamation mark, Health hazard
Hazard Statements: Harmful if swallowed. Causes skin and eye irritation. May cause respiratory irritation.
Precautionary Statements: Avoid breathing dust or fumes. Wash hands thoroughly after handling. Wear protective gloves, clothing, and eye/face protection. Do not eat or drink while using this product.
Additional Hazards: Prolonged or repeated exposure can dry skin or cause cracking. Dust clouds can pose explosion risk in enclosed areas.
Chemical Identity: Ethyltributylphosphonium Hexafluorophosphate
Component Percentage: >95% by weight
CAS Number: 500351-70-4
Impurities: Trace levels of tributylphosphine and ethyl derivatives (<2%)
Molecular Formula: C16H36FP6
Molecular Weight: 420.39 g/mol
Inhalation: Move person to fresh air. If experiencing respiratory symptoms, get medical attention immediately. Remove source of exposure. Loosen tight clothing.
Skin Contact: Remove contaminated clothing. Rinse skin with plenty of water for 15 minutes. Seek medical help for persistent irritation.
Eye Contact: Rinse eyes thoroughly with water for at least 15 minutes, lifting upper and lower eyelids. Remove contact lenses if present and easy to do. Get prompt medical attention.
Ingestion: Rinse mouth with water. Do not induce vomiting unless told by medical personnel. Get immediate medical attention.
Notes to Physician: Treat symptomatically. There is no specific antidote.
Suitable Extinguishing Media: Dry chemical, CO2, or foam. Use water spray to cool containers.
Unsuitable Extinguishing Media: Avoid using direct water jets as product may scatter.
Special Hazards: Upon combustion releases toxic fumes of phosphorus oxides, carbon monoxide, carbon dioxide, hydrofluoric acid. Closed containers may rupture due to heat.
Protective Equipment: Wear self-contained breathing apparatus and full protective gear.
Advice for Firefighters: Approach from upwind. Avoid inhaling combustion products. Dike fire control water for later disposal. Move containers from fire area if safe.
Personal Precautions: Wear personal protective equipment. Avoid breathing dust. Ventilate area. Remove ignition sources.
Environmental Precautions: Prevent runoff to waterways or sewers. Notify local authorities if spill enters environment.
Containment: Dike spilled material, using non-combustible absorbents such as sand or vermiculite.
Cleanup Methods: Collect spill with shovel. Place in labeled container for disposal. Wash spill area with water after collection. Dispose of according to local regulations.
Handling: Use in well-ventilated area. Avoid contact with skin and eyes. Wear appropriate gloves and eye protection. Prevent dust generation.
Storage: Store in tightly closed containers in a cool, dry place away from direct sunlight, heat sources, and incompatible materials such as oxidizers and moisture. Keep containers upright and properly labeled. Store separately from food and feedstuffs.
Occupational Exposure Limits: No established exposure limits for this specific product. Use workplace exposure standards for similar phosphonium compounds.
Engineering Controls: Operate with adequate ventilation or local exhaust. Handle powders in enclosed systems.
Personal Protection: Safety glasses with side shields or goggles, chemical-resistant gloves (nitrile, neoprene), flame-resistant lab coat, respiratory protection if dust is generated.
Hygiene Measures: Wash hands thoroughly before breaks and after work. Remove contaminated clothing and wash before reuse.
Appearance: White to off-white solid, crystalline
Odor: Mild, characteristic
Melting Point: 135–140°C
Boiling Point: Not applicable (decomposes on heating)
Vapor Pressure: Negligible at room temperature
Solubility: Soluble in water and polar organic solvents
Density: Approximately 1.2–1.3 g/cm3
pH: Neutral to slightly acidic (5–6, 5% solution)
Partition Coefficient (n-octanol/water): Not determined
Evaporation Rate: Not determined
Flash Point: Not flammable under normal conditions
Auto-ignition Temperature: Data not available
Chemical Stability: Stable under recommended storage conditions
Reactivity: Not reactive under normal conditions
Incompatible Materials: Strong oxidizers, acids, bases, moisture
Hazardous Decomposition Products: Phosphorus oxides, hydrogen fluoride, carbon oxides, and other toxic gases
Hazardous Polymerization: Will not occur
Conditions to Avoid: Excessive heat, open flame, moisture, strong acids and oxidizers
Acute Toxicity: Harmful if swallowed, inhaled, or absorbed through skin. Data indicates moderate oral and dermal toxicity. LD50 (oral, rat): estimated around 300–500 mg/kg.
Skin Corrosion / Irritation: Causes skin irritation with redness, dryness, or cracking on prolonged contact.
Serious Eye Damage / Eye Irritation: Causes irritation, pain, watering, and possible conjunctivitis.
Respiratory Sensitization: Can cause irritation of respiratory tract, coughing, or shortness of breath if dust is inhaled.
Carcinogenicity: No data on carcinogenicity. Not on NTP, IARC, or OSHA carcinogen lists.
Mutagenicity: No mutagenicity data available at this time.
Reproductive Toxicity: No evidence of reproductive toxicity.
Chronic Effects: Repeated or long-term skin exposure may cause dermatitis.
Aquatic Toxicity: May be harmful to aquatic organisms at high concentrations, based on the behavior of phosphonium and fluorinated compounds. No chronic aquatic toxicity data currently available.
Persistence and Degradability: Limited data suggests poor biodegradability in soil and water.
Bioaccumulative Potential: No evidence for significant bioaccumulation.
Mobility in Soil: Soluble in water, may migrate in moist environments.
Other Ecological Effects: Potentially toxic breakdown products (fluoride ions) may be harmful in aquatic systems.
Waste Disposal: Collect and place in sealed, labeled containers for proper disposal as chemical waste. Do not dispose with household garbage. Dispose in accordance with federal, state, and local regulations.
Contaminated Packaging: Rinse and triple wash before recycling or disposal. Do not reuse empty containers.
Incineration: Use licensed facility capable of controlling organic phosphorus and fluoride emissions.
UN Number: Not regulated under UN Model Regulations due to non-flammable and non-corrosive properties.
Transport Hazard Class: Not assigned
Packing Group: Not assigned
Proper Shipping Name: Chemical, N.O.S. (contains Ethyltributylphosphonium Hexafluorophosphate)
Environmental Hazards: Not considered marine pollutant under IMO regulations
Instructions: Keep container tightly closed and avoid damage during transport. Observe standard safety and hazard labeling.
US Regulations: Not on SARA Title III (EPCRA) lists. Not regulated under CERCLA. Not designated on TSCA inventory as hazardous.
EU Regulations: Not assigned harmonized hazard classification under CLP, but safety data should be available upon request. REACH substance registration required for quantities above threshold.
Canada: DSL and NDSL lists should be checked for compliance.
Other International Regulations: Comply with Japanese Industrial Safety and Health Law, Australian Inventory of Chemical Substances (AICS), and Chinese Chemical Inventory when importing or exporting.
Labeling: Product labeling must reflect health and environmental hazards for workplace safety.
