Product Name: Tetraoctylphosphonium Bromide
CAS Number: 4736-60-1
Use: Chemical intermediate, phase transfer catalyst
Manufacturer: Contact supplier for details
Emergency Phone Number: Refer to supplier-specific documentation
Synonyms: Phosphonium, tetraoctyl-, bromide
Molecular Formula: C32H68BrP
Molecular Weight: 579.75 g/mol
GHS Classification: Skin irritant (Category 2), Eye irritant (Category 2A), Acute toxicity oral (Category 4)
Label Elements: Exclamation mark symbol
Signal Word: Warning
Hazard Statements: Harmful if swallowed, Causes skin irritation, Causes serious eye irritation
Precautionary Statements: Avoid skin and eye contact, Wear protective equipment, Do not eat, drink, or smoke when using this product
Emergency Overview: White to off-white powder with slight odor, may cause irritation upon contact, ingestion brings risk of acute effects.
Chemical Identity: Tetraoctylphosphonium Bromide
CAS Number: 4736-60-1
Concentration: >98% by weight
Impurities: Minor residuals from production may include substituted phosphonium compounds or bromides at <2%
Inhalation: Move to fresh air, keep comfortable for breathing, get medical help if symptoms appear
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, seek attention for ongoing irritation
Eye Contact: Rinse immediately with water for at least 15 minutes, remove contact lenses if present, seek medical advice
Ingestion: Rinse mouth, do not induce vomiting unless directed by a professional, get immediate medical attention
Most Important Symptoms: Burning or redness on skin, stinging in eyes, nausea if swallowed, headache with higher exposure
Notes for Doctors: Treat symptomatically, consider risk of chemical pneumonitis from inhalation
Suitable Extinguishing Media: CO2, dry chemical powder, foam
Unsuitable Media: Do not use water streams directly at burning chemical
Specific Hazards: On thermal decomposition creates hazardous gases including phosphine, hydrogen bromide, CO, CO2
Special Protective Equipment: Use full protective clothing and self-contained breathing apparatus
Advice for Firefighters: Evacuate area, do not breathe fumes
Other Information: Product does not readily ignite, can melt or decompose if fire persists around storage areas
Personal Precautions: Wear suitable PPE including gloves, goggles, and mask
Environmental Precautions: Prevent release into drains, soil, or waterways
Containment: Sweep up spilled material with non-sparking equipment, avoid generating dust
Clean-Up Methods: Dispose in approved container, ventilate area, wash residue with plenty of water
Notification: Report major spills to local regulatory authority if required
Handling: Avoid inhalation and contact with skin or eyes, use only in well-ventilated zones, wear protective equipment
Hygiene Measures: Wash hands after use, do not eat, drink, or smoke around product
Storage: Keep container tightly sealed in a dry, cool place, away from direct sunlight and incompatible materials
Storage Conditions: Temperature below 30°C, away from strong acids and oxidizing substances
Packaging Materials: Store in original or chemical-resistant packaging
Other Considerations: Label containers clearly, control access to storage areas
Workplace Controls: Ensure local ventilation or exhaust systems at usage points
Exposure Limits: No established occupational exposure limits
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles, lab coats, dust mask or respirator as needed
Engineering Controls: Eye wash station and safety shower nearby
Environmental Controls: Contain and collect contaminated spills to prevent runoff
Appearance: White to pale yellow crystalline powder
Odor: Mild, faint
Melting Point: 70-90°C
Boiling Point: Decomposes before boiling
Density: Approximately 1.03 g/cm³ at 20°C
Solubility: Soluble in organic solvents such as chloroform, slightly soluble in water
pH (aqueous): Not determined
Vapor Pressure: Negligible at ambient conditions
Partition Coefficient: High, likely due to hydrophobic alkyl chains
Flash Point: Not easily flammable
Viscosity: Not applicable as a solid
Other Characteristics: Stable under recommended conditions, can form oily or waxy texture at higher temperatures
Chemical Stability: Stable at room temperature and under ordinary storage conditions
Incompatible Materials: Strong oxidizers, strong acids, acid chlorides
Hazardous Decomposition Products: Thermal breakdown yields bromine compounds, phosphine, hydrocarbons
Conditions to Avoid: High heat, direct sunlight, contact with incompatible substances
Reactivity: Not reactive under normal handling, but releases toxic phosphine or bromine fumes if decomposed by heat or acids
Acute Toxicity: Oral LD50 estimated in rats at 270-350 mg/kg
Skin Corrosiveness: Causes moderate irritation, reddening, possible blistering
Eye Damage/Irritation: Strong stinging and watering, may cause temporary visual disturbances
Chronic Effects: Data limited, possible skin sensitization on repeated exposure
Routes of Exposure: Inhalation, skin, eyes, ingestion
Cancer Information: Not classified as carcinogenic by IARC, NTP, or OSHA
Other Effects: High exposures might cause CNS depression, dizziness, headache
Ecotoxicity: Harmful to aquatic life with long lasting effects (fish, daphnia, algae), not readily biodegradable
Mobility in Soil: Due to hydrophobic nature, tends to adsorb to soils and particulate matter
Persistence and Degradability: Degradation occurs slowly under environmental conditions
Bioaccumulation: Potential for accumulation in aquatic organisms cannot be excluded
Other Adverse Effects: Large spills may disrupt local water or soil ecosystems, persistent in sediment
Disposal Methods: Collect and seal residues in approved waste containers, incinerate at authorized facilities only
Do Not: Dump into drains, surface water, or municipal garbage
Hazardous Waste Regulation: Classify as hazardous under most regional and international regulations
Container Disposal: Triple rinse and puncture containers before sending as chemical waste, avoid reuse
UN Number: Not classified as a regulated dangerous good by most international regulations
Proper Shipping Name: Tetraoctylphosphonium Bromide
Transport Hazard Class: Not regulated
Packing Group: None assigned
Marine Pollutant: No information in standard listings, exercise caution due to aquatic toxicity
Special Precautions: Avoid accidental spillage and exposure during transport, use leak-proof containers
Inventory Listings: Listed in TSCA (USA), REACH (EU), DSL (Canada), AICS (Australia)
Hazard Symbols: GHS07 (exclamation mark) for acute toxicity and irritant effects
Specific Regulations: Follow regional workplace safety, health, and environmental rules
Labeling Requirements: Clearly display product name, hazard classification, safety phrases
Worker Protection: Comply with local occupational health guidelines for chemical handling
