Product Name: Tributyldecylphosphonium Bromide
Synonyms: TBPB, Phosphonium salt, Quaternary phosphonium compound
Chemical Formula: C22H48BrP
CAS Number: 63501-71-7
Manufacturer: Contact supplier for details
Recommended Use: Laboratory chemical, Industrial chemical synthesis, Phase-transfer catalyst
Restrictions: Not for drug, food, or household use
Classification: Acute Toxicity (Oral and Dermal), Skin Corrosion/Irritation, Serious Eye Damage/Irritation, Environmental Hazard
GHS Label Elements: Signal Word: Danger
Hazard Statements: May cause skin irritation, Causes serious eye damage, Toxic if swallowed, Harmful in contact with skin, Harmful to aquatic life with long-lasting effects
Pictograms: Corrosive, Toxic, Environment
Precautionary Statements: Avoid breathing dust, Wash skin thoroughly after handling, Do not eat, drink or smoke when using this product, Avoid release to the environment, Wear protective gear such as gloves and eye protection
Other Hazards: May cause respiratory tract irritation, Contact with strong oxidizing agents could cause hazardous reactions
Chemical Identity: Tributyldecylphosphonium Bromide
Concentration: 98-100% by weight
Impurities: May contain trace moisture or related phosphonium salts, typically less than 1%
Inhalation: Move exposed person to fresh air. Monitor for respiratory distress. Seek medical care if symptoms like cough or difficulty breathing develop.
Skin Contact: Remove contaminated clothing. Wash off immediately with soap and water. Seek medical advice for persistent irritation or burns.
Eye Contact: Rinse cautiously with water for several minutes, holding eyelids apart. Remove contact lenses if present and easy to do. Continue rinsing and get medical attention immediately.
Ingestion: Rinse mouth with water. Never give anything by mouth to an unconscious person. Do not induce vomiting. Obtain immediate medical help.
Important Symptoms: Irritation, redness, chemical burns on skin and eyes, gastrointestinal distress
Advice to Doctor: Treat symptomatically; monitor for respiratory distress or severe irritation
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: Avoid direct water jet on burning material to prevent chemical splash
Special Hazards: Decomposition may release toxic fumes including phosphine, carbon monoxide, carbon dioxide, hydrogen bromide gas
Protective Equipment: Full protective gear and self-contained breathing apparatus recommended for firefighters
Additional Information: Evacuate area and approach upwind. Cool nearby exposed containers. Runoff may cause environmental harm.
Personal Protection: Use gloves, goggles, and protective clothing. Ventilate area. Avoid breathing dust or contacting skin and eyes.
Spill Cleanup: Collect material with inert absorbent (sand, earth, vermiculite). Transfer residue to closed container for proper disposal.
Environmental Protection: Prevent entry to drains, surface waters, or soil. Notify authorities if large amounts enter environment.
Decontamination: Wash spill site after material removal. Dispose of contaminated cleaning materials as hazardous waste.
Emergency Procedures: Isolate hazard area, restrict access. Use non-sparking tools.
Handling: Use only in well-ventilated settings. Wear appropriate personal protective equipment. Keep away from incompatible substances such as oxidizing agents. Avoid inhaling dust and prevent contact with skin and eyes.
Storage Conditions: Store in tightly closed original container. Keep in a cool, dry, well-ventilated place, away from sources of heat, light, and moisture. Recommended temperature: below 30°C. Keep separated from food, feed, and incompatible substances.
Packing Materials: Prefer containers made of chemically resistant materials such as HDPE or glass.
Specific Uses: Industrial synthesis, research laboratories
Incompatibility: Strong oxidizing agents, acids, bases
Engineering Controls: Local exhaust ventilation or general dilution ventilation recommended to control exposure.
Eye Protection: Chemical splash goggles or face shield
Skin Protection: Impermeable gloves (nitrile or PVC), lab coat or apron, long sleeves
Respiratory Protection: Use NIOSH-approved respirator if ventilation is insufficient or if dust generation likely
Hygiene Measures: Wash hands thoroughly after handling. Do not eat, drink, or smoke while using product.
Environmental Controls: Avoid spills and release to waterways. Implement containment measures where necessary.
Exposure Limits: No established OSHA, ACGIH, or EU occupational exposure limits for this compound.
Appearance: White to off-white crystalline powder
Odor: Slight, characteristic
pH: Not determined (aqueous solutions may be basic)
Melting Point: 170-180°C
Boiling Point: Not applicable (decomposes)
Flash Point: >100°C
Evaporation Rate: Not applicable
Flammability: Not easily flammable
Vapor Pressure: Negligible at room temperature
Relative Density: Approx. 1.1–1.2 (water = 1)
Solubility: Low solubility in water, soluble in organic solvents (e.g., methanol, ethanol, acetone)
Partition Coefficient (log Kow): Data not available
Auto-ignition Temperature: Not available
Decomposition Temperature: Above 180°C
Viscosity: Not relevant (solid at room temperature)
Chemical Stability: Stable under recommended storage and handling conditions. Sensitive to high heat and strong oxidizers.
Possible Reactions: Violent reaction possible with strong oxidizing agents. May react with acids, bases, and moisture.
Conditions to Avoid: Strong heat, open flames, contact with acids or oxidizers
Incompatible Materials: Strong oxidizers, strong acids, bases, reactive metals
Hazardous Decomposition: May emit toxic vapors such as phosphine, hydrogen bromide, and hydrocarbons upon decomposition.
Polymerization: Does not occur under normal industrial conditions
Acute Toxicity: Evidence suggests oral LD50 in rats is between 300–2000 mg/kg. Dermal toxicity may be lower.
Skin Corrosion/Irritation: Causes irritation and possible chemical burns
Eye Damage/Irritation: Severe eye irritant; risk of irreversible eye damage
Respiratory Tract: May cause respiratory tract irritation if inhaled
Sensitization: No data on skin sensitization, handle with caution
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Mutagenicity: No data available
Reproductive Toxicity: No data available
Chronic Effects: Prolonged exposure may damage skin or eyes
Ecotoxicity: Harmful to aquatic organisms. Long-term adverse effects in the aquatic environment possible.
Persistence and Degradability: Not readily biodegradable. May persist in environment.
Bioaccumulative Potential: Potential for bioaccumulation not fully established. Use caution to avoid environmental release.
Mobility in Soil: May bind to soil and sediment. Product is not highly mobile.
Other Adverse Effects: Prevent undiluted product or large quantities from reaching water bodies, sewers, and soil.
Waste Treatment Methods: Dispose of waste through a licensed chemical disposal company. Keep out of water sources and sewers.
Disposal of Packaging: Triple rinse containers and dispose according to local, regional, and national regulations. Do not reuse empty containers.
RCRA Status: Not listed as a hazardous waste, but should be treated as hazardous due to toxicity and environmental impact.
Additional Advice: Consult environmental authorities. Do not dump into drains or environment.
UN Number: Not assigned for this specific compound
UN Proper Shipping Name: Chemical, N.O.S. (contains Tributyldecylphosphonium Bromide)
Transport Hazard Class: 6.1 (Toxic substances), if classified based on toxicity
Packing Group: III
Marine Pollutant: Yes, based on ecotoxicity
Transport Labels: Toxic, Environmentally hazardous substance
Special Precautions: Avoid release during transport, secure containers tightly, transport according to ADR/RID/IMDG/IATA/ICAO regulations
OSHA: Hazardous chemical as defined by OSHA Hazard Communication Standard
SARA Title III: Not listed as a reportable substance under Section 313
TSCA: May not be listed individually, check inventory status
REACH: Data required for registration under REACH in the EU; consult supplier
Other International Regulations: Ensure compliance with applicable regional and national chemical regulations
Labeling Requirements: GHS and local hazard information required on container
Worker Protection: Provide training on risks and safe handling practices
Inventory Listings: Check status in inventories such as EINECS, DSL, AICS, and others as necessary
