Product Name: Ethyltributylphosphonium Acetate
Chemical Formula: C16H37O2P
Synonyms: ETBPA, Phosphonium acetate
CAS Number: 850568-11-7
Recommended Uses: Laboratory chemical, industrial applications, solvent, catalyst
Manufacturer/Supplier: Identified by procurement source
Emergency Contact: Refer to supplier or local poison control
GHS Classification: Skin irritation Category 2, Eye irritation Category 2A, Acute toxicity Category 4 (oral)
Pictograms: Exclamation mark
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation
Precautionary Statements: Do not breathe dust/fume/gas/mist/vapours/spray, wash exposed area thoroughly after handling, wear protective gloves/eye protection/face protection
Routes of Exposure: Inhalation, ingestion, skin, eyes
Most Important Hazards: Irritating to eyes and skin, harmful if ingested, possible central nervous system effects with high exposure
Chemical Name: Ethyltributylphosphonium Acetate
Common Name: ETBPA
Concentration: 95-100%
Impurities & Stabilizing Additives: Trace quantities of related phosphonium salts possible
Inhalation: Move to fresh air, keep airways clear, seek medical attention if symptoms persist
Skin Contact: Wash affected skin area thoroughly with water and soap, remove contaminated clothing and seek care for persistent irritation
Eye Contact: Rinse carefully with plenty of water for several minutes, lift eyelids as appropriate, get immediate medical attention with ongoing irritation
Ingestion: Rinse mouth thoroughly with water, do not induce vomiting, seek emergency medical care promptly
Most Important Symptoms: Redness or irritation of eyes/skin, gastrointestinal upset, respiratory discomfort
Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, alcohol resistant foam, water spray
Hazards From Combustion: Toxic gases formed during burning including phosphorus oxides, carbon monoxide, carbon dioxide
Special Protective Equipment: Firefighters should use standard self-contained breathing apparatus and chemical protective clothing
Specific Fire-Fighting Methods: Approach fire from upwind, use water spray to cool containers, prevent runoff into drains and waterways
Personal Precautions: Evacuate untrained personnel, use adequate personal protective equipment, avoid contact with skin and eyes, ensure good ventilation
Environmental Precautions: Prevent from entering soil, streams or drains, contain spills using absorbent materials, notify environmental authorities if large releases occur
Methods For Clean-Up: Soak up with inert absorbent, place in suitable container for disposal, wash spill area thoroughly after removal, dispose waste in accordance with local regulations
Handling: Use splash goggles, nitrile gloves, and lab coats when transferring or working with product, avoid inhaling any vapors or mists, refrain from eating or drinking nearby
Safe Storage Conditions: Store in tightly closed original container in a dry, cool, well-ventilated area, segregate from strong oxidizers and acids, protect from direct sunlight, keep away from ignition sources
Specific End Use Notes: Follow institutional safety policies and keep inventory records
Occupational Exposure Limits: No established biological or OEL values specific to this compound
Engineering Controls: Use mechanical exhaust or local ventilation, institute closed process systems whenever possible
Personal Protective Equipment: Nitrile or other resistant gloves, safety goggles, protective clothing, face shield under splash-risk circumstances
Hygiene Measures: Wash hands and arms thoroughly after handling, remove contaminated clothing before eating or leaving the workplace
Respiratory Protection: Use approved respirator during high vapor or aerosol exposures or where ventilation is lacking
Appearance: Clear to pale yellow liquid
Odor: Mild, characteristic
pH: Not established (expected moderately basic)
Melting Point/Freezing Point: Not available, expected to remain liquid at ambient
Boiling Point: Not established for pure compound, estimated above 200°C
Flash Point: Above 150°C (closed cup, estimated)
Evaporation Rate: Not determined
Flammability: Not classified as highly flammable
Vapor Pressure: Low at room temperature
Density: ~0.93 g/cm³
Solubility: Miscible with water and polar organic solvents
Partition Coefficient (n-octanol/water): Not established
Decomposition Temperature: Not determined
Viscosity: Elevated compared with simple organic liquids
Chemical Stability: Stable under recommended handling and storage
Reactive With: Strong oxidizers, strong acids, avoid contact with powerful reducing agents
Conditions to Avoid: Extreme temperatures, exposure to light, moisture, sources of ignition
Decomposition Products: May yield hazardous fumes of carbon monoxide, carbon dioxide, phosphorus oxides upon thermal breakdown
Polymerization: Not expected under normal conditions
Acute Toxicity: Harmful if swallowed (oral LD50 estimated 500–2000 mg/kg, rat)
Skin Corrosion/Irritation: Causes moderate to severe skin irritation
Eye Damage/Irritation: Causes serious eye irritation, possible corneal injury on prolonged exposure
Respiratory Sensitization: No specific data available, treat as potential irritant
Chronic Toxicity: No definitive data, repeated contact should be avoided
Carcinogenicity/Mutagenicity/Reproductive Toxicity: No data demonstrating mutagenic, carcinogenic, or reproductive toxicity effects at expected exposure
Other Health Effects: Prolonged inhalation or ingestion can affect nervous system and kidney
Aquatic Toxicity: Limited data, structurally related phosphonium salts can be toxic to aquatic organisms at low concentration
Persistence/Degradability: Expected to display low biodegradability, relies on site-specific waste treatment
Bioaccumulation Potential: Not expected to significantly bioaccumulate
Mobility in Soil: Moderate water solubility, potential to leach through soils if released
Other Adverse Effects: May contribute to long-term toxicity in aquatic environments if discharged in significant quantities
Waste Treatment Methods: Dispose through licensed chemical waste contractor, do not pour into drains or waterways
Disposal of Contaminated Packaging: Triple rinse containers before disposal, dispose according to national and local regulations
Special Instructions: Incineration suitable for bulk material under controlled conditions, consult local chemical waste guidelines
UN Number: Not assigned for this compound
Proper Shipping Name: Not regulated as hazardous for road, rail, sea, or air transport by most authorities
Transport Hazard Class: Not classified
Packing Group: Not classified
Marine Pollutant: No specific information, handle to avoid release
Special Precautions for Users: Prevent leakage, use secondary containment, label packages clearly
Labeling Requirements: GHS-compliant labeling includes hazard and precautionary statements
TSCA Inventory: Check current status, may be subject to chemical notification
International Inventories: Investigate country-specific regulation including REACH, DSL, EINECS/ELINCS
Other Regulations: Local safety, health, and environmental regulations may apply, maintain compliance with occupational and chemical safety standards, keep safety documentation readily accessible
