Product Name: Tributyl(hexadecyl)phosphonium bromide
Chemical Formula: C28H62BrP
Synonyms: Tributyl(cetyl)phosphonium bromide
CAS Number: 68299-45-0
Intended Use: Laboratory research and industrial synthesis
Manufacturer/Supplier: Indicate full supplier contact information including address and emergency phone
Emergency Contact: Emergency phone number for chemical incidents, poison control information
GHS Classification: Skin Corrosive Category 2, Acute Toxicity Category 4 (oral, dermal), Eye Irritant Category 2
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation, may be harmful if swallowed or absorbed through skin, harmful to aquatic life with long-lasting effects
Precautionary Statements: Wear suitable protective gloves, clothing, and eye protection; avoid breathing dust or vapors; wash hands thoroughly after handling; avoid release to the environment
Chemical Name: Tributyl(hexadecyl)phosphonium bromide
Common Name: Cationic surfactant, organic phosphonium salt
CAS Number: 68299-45-0
Concentration: >98% by weight
Impurities: Phosphine derivatives (<2%)
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, continue rinsing, seek medical attention
Skin Contact: Take off contaminated clothing, rinse skin with plenty of water, wash with soap and water, seek medical advice if irritation persists
Inhalation: Move person to fresh air, keep breathing comfortable, call a physician if symptoms develop
Ingestion: Rinse mouth, do not induce vomiting unless directed by a medical professional, seek immediate medical care
Most Important Symptoms: Skin redness, eye pain or irritation, abdominal discomfort if ingested
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Unsuitable Extinguishing Media: Direct water stream may spread spilled material
Special Hazards: Releases toxic fumes (carbon oxides, phosphorus oxides, hydrogen bromide) when burned
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear
Advice for Firefighters: Use water spray to cool unopened containers, prevent runoff from entering water systems
Personal Precautions: Use proper protective equipment, avoid inhalation of dust, avoid skin and eye contact
Methods for Containment: Prevent further leakage or spillage if safe, contain spill with inert absorbent
Cleanup Procedures: Scoop up spilled material, place into suitable labeled waste container, clean spill area thoroughly with water and detergent
Environmental Precautions: Prevent product from entering drains, surface water, or soil
Handling: Use only in well-ventilated areas, keep container tightly closed, keep away from incompatible materials (oxidizers, strong acids), avoid formation of dust
Hygiene Measures: Wash hands after handling, remove contaminated clothing before entering eating areas
Storage Conditions: Store in cool, dry, well-ventilated location; keep away from direct sunlight and moisture
Packing Materials: Use containers made of compatible material, keep containers upright and secure at all times
Occupational Exposure Limits: No specific limits established, general dust exposure limits may apply
Engineering Controls: Use local exhaust ventilation or chemical fume hood
Respiratory Protection: Use a NIOSH-approved respirator for dust or mist if ventilation is inadequate
Hand Protection: Chemical-resistant gloves (nitrile or butyl rubber)
Eye Protection: Safety goggles or face shield
Skin Protection: Lab coat or apron, closed-toe shoes
Physical State: Solid, crystalline
Color: White to off-white
Odor: Mild phosphine-like
Melting Point: 85-90°C
Boiling Point: Not applicable (may decompose)
Solubility: Soluble in water and alcohol
Density: 0.98–1.05 g/cm3 at 20°C
pH: 6–8 (1% solution)
Vapor Pressure: Negligible at ambient conditions
Partition Coefficient: Not determined
Flash Point: >100°C (closed cup)
Chemical Stability: Stable under recommended storage and handling conditions
Reactivity: No hazardous reactions under normal storage and handling
Incompatible Materials: Strong oxidizers, strong acids, bases
Hazardous Decomposition: Releases toxic phosphine oxides, hydrogen bromide, and carbon oxides on decomposition
Conditions to Avoid: Exposure to heat, moisture, strong light
Acute Toxicity: Oral LD50 (rat): >300 mg/kg; Dermal LD50 (rat): >2000 mg/kg
Skin Corrosion/Irritation: Causes irritation with possible redness or dryness
Serious Eye Damage/Irritation: Contact may cause moderate to severe irritation, watering
Inhalation Risk: Harmful if inhaled, especially as dust or aerosols
Chronic Effects: No data on carcinogenicity, mutagenicity, or reproductive toxicity
Sensitization: Not known to cause sensitization
Other Data: Symptoms may include abdominal pain, headache, dizziness with extensive exposure
Ecotoxicity: Harmful to aquatic organisms, toxic effects possible with long-term exposure
Persistence/Degradability: No comprehensive degradation studies available, expect slow breakdown in soil and water
Bioaccumulation Potential: No significant bioaccumulation expected due to size and solubility
Mobility in Soil: Moderate mobility expected; can enter watercourses; avoid release to natural waterways
Other Adverse Effects: Product residues may alter aquatic ecosystem balance
Waste Treatment Methods: Dispose of product and contaminated containers as hazardous waste
Recommended Disposal: Use approved incineration or chemical disposal at licensed facility
Packaging Disposal: Rinse containers thoroughly, dispose in accordance with local regulations
Environmental Precautions: Do not allow into sewers, ground, or water bodies
UN Number: Not classified for transport as hazardous material under most international regulations
DOT (US): Not regulated
IMDG: Not regulated
IATA: Not regulated
Special Transport Precautions: Keep containers tightly sealed during transport, protect from physical damage and temperature extremes
TSCA Listing: Listed or complies with TSCA requirements
EC Inventory: Listed in EINECS/ELINCS
OSHA Status: Not specifically regulated under OSHA standards for hazardous chemicals
SARA Title III: Not listed as hazardous substance under Section 313
Other Regulations: Subject to region-specific chemical or occupational safety rules; follow all local, national, and international laws for handling and disposal
