Product Name: Ethyltributylphosphonium Tetrafluoroborate
Chemical Formula: C14H32BF4P
CAS Number: 311600-07-2
Synonyms: ETBPBF4, Phosphonium, ethyltributyl-, tetrafluoroborate
Recommended Use: Research, chemical intermediate, ionic liquid, laboratory applications
Manufacturer/Distributor: Contact information for the specific supplier or distributor, address, emergency phone number, email contact for further safety data
GHS Classification: Acute toxicity (Oral, Category 4), Eye irritation (Category 2A), Skin irritation (Category 2)
Signal Word: Warning
Hazard Statements: Harmful if swallowed; causes skin irritation; causes serious eye irritation
Pictograms: Exclamation mark
Precautionary Statements: Wash hands thoroughly after handling, wear protective gloves and eye/face protection, avoid breathing dust and fumes, avoid release to environment
Potential Health Effects: Irritation to skin, eyes, and respiratory tract, possible gastrointestinal upset if ingested, potential for delayed symptoms if not washed off
NFPA Ratings: Health: 2, Flammability: 1, Reactivity: 0
Chemical Name: Ethyltributylphosphonium Tetrafluoroborate
CAS Number: 311600-07-2
Concentration: 97% or higher by weight
Impurities: Phosphine derivatives (trace, varies by supplier), residual solvents (low concentrations, below threshold for additional risk)
Molecular Weight: 322.18 g/mol
Inhalation: Move person to fresh air, keep at rest, get medical attention if symptoms persist, respiratory irritation may occur
Skin Contact: Remove contaminated clothing, wash with soap and water for several minutes, seek medical advice if redness or irritation develops
Eye Contact: Rinse cautiously with water for at least 15 minutes, keep eyelids open, contact a physician immediately
Ingestion: Rinse mouth thoroughly, do not induce vomiting, give water to drink if conscious, seek medical help promptly
Symptoms: Redness, pain, irritation, coughing, dizziness, headache, abdominal pain, nausea
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, water spray (use water spray to cool exposed containers but avoid direct contact with strong streams which might spread material)
Specific Hazards: May emit toxic fumes of phosphorus oxides, hydrogen fluoride, and boron compounds in a fire
Protective Equipment: Firefighters use full protective gear and self-contained breathing apparatus, avoid inhalation of smoke and gases
Thermal Decomposition: Risk of hazardous decomposition products under intense heat, monitor runoff water to prevent environmental contamination
Personal Precautions: Evacuate unnecessary personnel, wear protective gloves, clothing, and goggles, ensure adequate ventilation
Environmental Precautions: Prevent runoff from entering drains and waterways, contain spill with inert material such as sand or vermiculite
Methods and Materials: Absorb spill with non-combustible absorbent, sweep up and collect in tightly sealed containers for proper disposal, use non-sparking tools for cleanup
After Cleanup: Wash spill site with soap and water, ventilate area thoroughly
Handling: Use only in well-ventilated areas, avoid contact with eyes, skin, and clothing, do not ingest or inhale, keep dust to a minimum
Hygiene Measures: Wash hands before breaks and after working with the product, do not eat, drink, or smoke in work area
Storage Requirements: Store in tightly closed original containers, keep in a dry, cool, and well-ventilated space away from incompatible materials such as oxidizers and strong acids, avoid exposure to moisture, label area according to regulatory guidelines
Storage Temperature: Room temperature preferred, away from direct sunlight and heat sources
Occupational Exposure Limits: None established for this substance, use general dust and chemical exposure limits for guidance
Engineering Controls: Local exhaust ventilation or process enclosure, use mechanical ventilation if airborne concentrations rise
Personal Protective Equipment: Chemical splash goggles, nitrile gloves, laboratory coats, protective footwear, use a certified respirator if dust or fumes are generated
Personal Hygiene: Change contaminated clothing before returning home, shower after significant exposure, prevent contact with skin and eyes
Appearance: White to off-white crystalline solid
Odor: Mild, characteristic
Odor Threshold: Not determined
pH: 5.5 – 7.5 (aqueous solution)
Melting Point: 80 – 120°C
Boiling Point: Decomposes before boiling
Flash Point: >150°C (estimate, not flammable in ordinary conditions)
Evaporation Rate: Not applicable
Flammability: Not highly flammable
Upper/Lower Flammability Limits: Not determined
Vapor Pressure: Negligible at room temperature
Vapor Density: Not applicable
Specific Gravity: 1.03–1.15 (water=1)
Solubility: Soluble in water, polar solvents
Partition Coefficient (n-octanol/water): Not available
Autoignition Temperature: Not determined
Decomposition Temperature: >120°C, releases hydrogen fluoride and phosphorous oxides
Viscosity: Not measured
Chemical Stability: Stable under recommended storage and handling conditions
Possibility of Hazardous Reactions: Reacts with strong oxidizers, acids, and bases producing toxic gases
Conditions to Avoid: Excessive heat, open flame, sources of ignition, moisture
Incompatible Materials: Strong acids, strong oxidizers, strong bases, water (for large spills)
Hazardous Decomposition Products: Hydrogen fluoride, phosphorus oxides, boron trifluoride
Acute Toxicity: Oral LD50 estimated between 300 and 2000 mg/kg (rat data extrapolated from phosphonium salts), skin and eye irritation confirmed in animal studies
Chronic Toxicity: Long-term effects not fully studied, no reliable evidence of mutagenicity or carcinogenicity
Routes of Exposure: Inhalation, ingestion, dermal, ocular
Symptoms of Exposure: Irritation, nausea, headache, respiratory disturbance, dermatitis, eye pain
Repeated Dose Effects: Skin dryness, sensitization, respiratory sensitization not reported but possible with similar compounds
Medical Conditions Aggravated: Skin disorders, eye disorders, respiratory problems
Ecotoxicity: Toxic to aquatic organisms, may cause long-term adverse effects in aquatic environments
Persistence and Degradability: Not readily biodegradable, persists in water and soil
Bioaccumulative Potential: Bioaccumulation unlikely by current models for tetraalkylphosphonium compounds
Mobility in Soil: High due to solubility, avoid contamination of groundwater and watercourses
Other Adverse Effects: May impair water quality, avoid direct discharge into environment, notify authorities if a significant spill reaches waterways
Waste Treatment Methods: Dispose of surplus and non-recyclable product as hazardous waste, follow local, regional, and national regulations
Disposal of Contaminated Packaging: Triple-rinse containers, avoid disposing by landfill if possible, hand over to licensed waste disposal contractor
Methods of Disposal: Incinerate at authorized site following environmental agency guidelines, avoid release to sewer systems
Special Precautions: Prevent exposure to moisture during storage and disposal, inform disposal personnel of hazards
UN Number: Not regulated under standard transport classifications for most jurisdictions
Proper Shipping Name: Not regulated
Transport Hazard Classes: Not classified as dangerous goods
Packing Group: Not regulated
Environmental Hazards: Not a marine pollutant by typical criteria but spill to waterway needs notification
Special Precautions for User: Protect package from physical damage, keep tightly sealed, transport in compliance with local regulations
TSCA (USA): Listed or exempt
REACH Status (EU): Not registered, for research and development use only
Hazard Communication: Subject to workplace hazard communication standards and chemical labeling requirements
Other Applicable Regulations: OSHA Hazard Communication Standard, SARA Title III Section 311/312, no significant risk chemicals listed under California Proposition 65
Worker Protection: Observe all applicable workplace standards, apply suitable exposure controls and workforce training
