Product name: Tributylhexylphosphonium Bromide
Chemical formula: C18H40BrP
CAS number: 654371-84-7
Synonyms: TBHPB, Tributylhexylphosphonium Bromide
Intended use: Laboratory chemical, industrial manufacturing
Manufacturer: Chemical supplier/distributor contact information, emergency contact number, and SDS reference date
GHS classification: Acute Toxicity (Oral) Category 4, Skin Corrosion/Irritation Category 2, Eye Damage/Irritation Category 2A, Specific Target Organ Toxicity (Single Exposure) Category 3
Signal word: Warning
Hazard statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation, may cause respiratory irritation
Pictograms: Exclamation mark
Precautionary statements: Avoid breathing dust or vapors, wear protective gloves/clothing/eye/face protection, wash skin thoroughly after handling, if swallowed: call a poison center or doctor, if on skin: wash with plenty of water
Other hazards: Dust may form explosive mixtures with air, possible environmental hazard
Chemical name: Tributylhexylphosphonium Bromide
CAS number: 654371-84-7
Concentration: ≥ 98%
Impurities: None significant under normal handling
Inhalation: Move person to fresh air, keep comfortable, seek medical attention if symptoms persist
Skin contact: Remove contaminated clothing, wash with soap and water for at least 15 minutes, seek medical attention for persistent irritation
Eye contact: Rinse cautiously with water for several minutes, remove contact lenses, seek immediate medical attention
Ingestion: Rinse mouth, do not induce vomiting, call poison center or physician immediately
Most important symptoms/effects: Possible burning sensation, coughing, dizziness, nausea, redness, and pain
Protection for first-aiders: Ensure self-protection by avoiding contact and inhalation, use personal protective equipment
Suitable extinguishing media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable extinguishing media: Do not use strong water jets
Specific hazards: May produce toxic fumes under fire conditions including phosphorous oxides, hydrogen bromide
Advice for firefighters: Wear self-contained breathing apparatus, full protective suit
Special protective actions: Evacuate area, cool exposed containers, prevent runoff from entering drains or water systems
Personal precautions: Evacuate personnel, ventilate area, use personal protective equipment to prevent skin/eye contact and inhalation
Environmental precautions: Prevent further leakage or spillage if safe, avoid release to the environment, do not let product enter drains
Methods for cleanup: Sweep up, collect, and place in suitable container for disposal, decontaminate area with water and detergent
Reference for other sections: Refer to sections on exposure controls, personal protection, and disposal
Safe handling: Use only with adequate ventilation, avoid contact with skin, eyes, and clothing, wash hands thoroughly after handling
Protective measures: Use properly fitted protective equipment (gloves, goggles, lab coat), avoid creating dust
Conditions for storage: Store in tightly closed containers in a cool, dry, well-ventilated area away from incompatible substances like oxidizers and acids
Storage temperature: Recommended below 30°C, protect from moisture and sunlight, label containers
Incompatible materials: Avoid strong acids, strong bases, and oxidizing agents
Control parameters: No occupational exposure limits established for this substance
Engineering controls: Use local exhaust ventilation, safety shower and eyewash station available
Personal protective equipment: Chemical-resistant gloves (e.g., nitrile), safety goggles or face shield, lab coat, suitable respiratory protection if exposure limits are exceeded or dust generation occurs
Hygiene measures: No eating, drinking, or smoking in area of use, wash hands before breaks and after work, remove contaminated clothing
Appearance: White to off-white crystalline powder
Odor: Mild, characteristic
Odor threshold: Not available
pH: Not available
Melting point: Approx. 78-80°C
Boiling point/range: Decomposes before boiling
Flash point: >200°C (estimated)
Evaporation rate: Not available
Flammability: Not classified as flammable, dust may be combustible
Explosion limits: Dust may pose explosion risk in air
Vapor pressure: Negligible at room temperature
Vapor density: Not determined
Relative density: Approx. 1.0 - 1.2 (water = 1)
Solubility: Soluble in polar organic solvents; low solubility in water
Partition coefficient (n-octanol/water): Not determined
Auto-ignition temperature: Not available
Decomposition temperature: >200°C
Viscosity: Not applicable (solid)
Chemical stability: Stable under recommended storage conditions
Reactivity: No hazardous reactions under normal use
Possibility of hazardous reactions: May react with strong oxidizing agents or acids, generating hazardous products
Conditions to avoid: Excessive heat, moisture, open flames, dust formation
Incompatible materials: Oxidizers, strong acids and bases
Hazardous decomposition products: Phosphorous oxides, carbon oxides, hydrogen bromide under fire or decomposition conditions
Acute toxicity (oral): May be harmful if swallowed, data limited, estimated LD50 (rat) > 300 mg/kg
Acute toxicity (dermal/inhalation): Not fully characterized, may cause irritation
Skin corrosion/irritation: Causes irritation, redness, peeling
Serious eye damage/irritation: Causes severe irritation, pain, watering, possible damage
Respiratory or skin sensitization: Not expected under normal handling
Germ cell mutagenicity: Not classified
Carcinogenicity: Not classified or listed by IARC, NTP, or OSHA
Reproductive toxicity: No evidence or data
Specific target organ toxicity - single exposure: May cause respiratory irritation
Specific target organ toxicity - repeated exposure: Not classified
Aspiration hazard: Not expected due to physical state
Symptoms related to exposure: Cough, burning sensation, nausea, vomiting, skin and eye redness
Ecotoxicity: Data limited; potential toxicity to aquatic organisms, avoid environmental release
Persistence and degradability: Not readily biodegradable, may persist in the environment
Bioaccumulative potential: Low to moderate based on structure, not expected to bioaccumulate significantly
Mobility in soil: May be retained by soil, limited mobility
Other adverse effects: Hazard to aquatic life through acute and/or chronic effects not excluded, avoid drains and waterways
Waste disposal methods: Dispose in accordance with local, regional and national regulations, incinerate in a chemical incinerator equipped with afterburner and scrubber where permitted
Contaminated packaging: Triple rinse containers, dispose of as hazardous waste
Precautions for disposal: Avoid contamination of groundwater and surface water, do not discharge to sewer systems or the environment
UN number: Not regulated for transport under major transport regulations (ADR/RID, IMDG, IATA)
UN proper shipping name: Not classified as dangerous goods
Transport hazard class: Not applicable
Packing group: Not applicable
Environmental hazards: Not a marine pollutant
Special precautions for user: Avoid generating dust during handling and transport, use sealed containers
OSHA hazard communication standard: Classified as hazardous
TSCA inventory: Consult local regulations regarding status
EINECS/ELINCS: Not listed
DSL/NDSL (Canada): Consult local regulations
SARA Title III Sections 311/312: Acute health hazard
SARA Title III Sections 302/313: Not listed
California Proposition 65: Not listed
Other regulations: Observe relevant authority requirements for registration, labelling, and safety
