Product Name: Benzyltrimethylammonium Tribromide
Chemical Formula: C10H16Br3N
CAS Number: 4807-23-4
Synonyms: BTMA Tribromide, N-Benzyl-N,N,N-trimethylammonium tribromide
Recommended Use: Organic synthesis, bromination reagent
Supplier Information: Name, address, emergency contact phone, email (data provided by supplier or found on product label)
Classification: Acute Toxicity (oral) Category 4, Skin Corrosion/Irritation Category 2, Eye Damage/Irritation Category 1, Hazardous to Aquatic Life (acute) Category 1
Signal Word: Danger
Hazard Statements: Harmful if swallowed; Causes skin irritation; Causes serious eye damage; Very toxic to aquatic life
Pictograms: Skull and crossbones, Corrosion, Environment
Precautionary Statements: Avoid contact with skin and eyes; Do not breathe dust or vapors; Wear protective clothing, gloves, eye protection; Keep away from water sources; Wash thoroughly after handling
Chemical Name: Benzyltrimethylammonium Tribromide
Concentration: ≥ 98%
CAS Number: 4807-23-4
Impurities: Trace amounts of dibrominated and monobrominated analogues, residual starting materials
Other Ingredients: None identified as hazardous according to OSHA and GHS regulations
Inhalation: Move person to fresh air; Seek prompt medical attention if symptoms like coughing, shortness of breath, or dizziness develop
Skin Contact: Immediately wash skin with plenty of water and soap; Remove contaminated clothing; Request medical advice for persistent irritation or burns
Eye Contact: Rinse eyes with water for at least 15 minutes, lifting eyelids; Remove contact lenses if present and easy to do; Get medical help directly for any exposure
Ingestion: Rinse mouth, do not induce vomiting; Give water only if conscious; Seek medical attention immediately
Symptoms: Burning pain, redness, blistering of skin, severe eye damage, abdominal pain, nausea from ingestion or inhalation
Advice to Physician: Supportive care; Treat symptoms, monitor for respiratory distress or organ involvement
Suitable Extinguishing Media: Use dry chemical, foam, or carbon dioxide; Use water spray only to cool containers, not for direct extinguishing
Hazards from Combustion: Releases toxic and corrosive gases such as hydrogen bromide, bromine, nitrogen oxides; May form hazardous fumes
Protective Equipment: Firefighters should wear self-contained breathing apparatus and chemical-resistant protective clothing
Special Procedures: Avoid inhalation of smoke and vapors; Move containers from fire area if it can be done safely; Prevent runoff to waterways
Explosion Risk: Not explosive, does not support combustion, but strong oxidizers can enhance fire risk
Personal Precautions: Evacuate unnecessary personnel; Use personal protective equipment including gloves, lab coat, goggles, and mask
Environmental Precautions: Prevent further leakage or spillage if safe to do so; Do not allow product to enter drains, soil, or waterways
Containment Methods: Collect spilled material using inert absorbent (sand or vermiculite), avoid dust formation
Cleanup Procedures: Sweep and collect in suitable labeled container for disposal; Ensure adequate ventilation; Decontaminate affected area with sodium thiosulfate or similar neutralizer
Handling: Avoid breathing dust or vapors; Do not eat, drink, or smoke in area of use; Wash hands after handling; Use in well-ventilated, chemical fume hood when possible
Storage Conditions: Store in tightly closed, corrosion-resistant container; Keep out of direct sunlight, away from moisture, acids, strong reducing agents, and incompatible chemicals
Temperature Range: Recommended ambient storage, do not freeze
Other Instructions: Label storage containers clearly; Inspect regularly for leaks or degradation
Exposure Limits: No OSHA, NIOSH, or ACGIH exposure limits established; Minimize exposure by engineering controls
Engineering Controls: Use chemical fume hood or local exhaust ventilation
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles or face shield, lab coat or apron, chemical-resistant footwear
Respiratory Protection: Wear NIOSH-approved particulate respirator for dust or mists if airborne exposure may occur above nuisance levels
Hygiene Measures: Wash hands, face, and exposed skin thoroughly after handling; Remove and wash contaminated clothing before reuse
Appearance: Reddish-brown crystalline powder
Odor: Pungent, similar to halogens
Molecular Weight: 425.96 g/mol
Melting Point: Approximately 120–124°C (decomposes)
Boiling Point: Not applicable (decomposes before boiling)
Solubility: Soluble in water, methanol; partially soluble in ethanol; low solubility in nonpolar solvents
Density: 1.9–2.2 g/cm³
pH: Acidic to neutral in aqueous solution
Vapor Pressure: Not applicable at room temperature
Partition Coefficient (log Kow): No data available
Chemical Stability: Stable under recommended storage conditions; Sensitive to moisture
Reactivity: Strong oxidizing agent; Reacts violently with reducing agents, acids, bases, and organic materials
Hazardous Decomposition: Hydrogen bromide, bromine, nitrogen compounds upon heating or combustion
Incompatible Materials: Reducing agents, strong acids, organic combustibles, bases, metals
Polymerization: Will not occur under normal conditions
Routes of Exposure: Inhalation, ingestion, skin contact, eye contact
Acute Effects: Harmful if swallowed; Causes skin and eye burns; May irritate respiratory tract
Chronic Effects: Prolonged exposure may cause dermatitis or other skin reactions; Repeated exposure may impact liver or kidney in severe cases
LD50 (oral, rat): No precise data; structurally similar quaternary ammonium salts report LD50 50–500 mg/kg
Carcinogenicity: No classification by IARC, NTP, or OSHA
Other Data: Not classified as mutagenic or reproductive toxin based on available evidence
Aquatic Toxicity: Very toxic to aquatic organisms; May cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Low biodegradability, persists under most environmental conditions
Bioaccumulation: No significant potential for bioaccumulation in higher organisms
Mobility in Soil: High water solubility may facilitate migration in soil and groundwater
Other Ecological Hazards: Avoid uncontrolled release, prevent product or waste from contaminating soil and water bodies
Waste Disposal Methods: Dispose of in compliance with local, state, and national regulations; Incineration in chemical waste facility recommended; Do not pour down drain or mix with household waste
Container Disposal: Decontaminate containers before recycling or disposal; Follow all legal requirements
Environmental Precautions: Do not allow material or flushings to enter public sewage or water systems; Notify authorities if large amounts contaminate environment
UN Number: UN 3260
Proper Shipping Name: Corrosive Solid, Acidic, Inorganic, N.O.S. (contains Benzyltrimethylammonium Tribromide)
Transport Hazard Class: 8 (Corrosive Substances)
Packing Group: II
Label Requirements: Corrosive
Marine Pollutant: Yes
Transport Regulations: Follow national and international transport regulations (IMDG, IATA, DOT); Secure package to avoid physical damage and leaks
OSHA Status: Classified as hazardous per 29 CFR 1910.1200
TSCA Inventory: Listed or exempt
SARA 313: Not specifically listed; Bromine compounds may be regulated
RCRA Status: Waste codes D002 (corrosive), D003 (reactive) may apply
REACH Status (EU): Registration may be required under Regulation (EC) No. 1907/2006
WHMIS (Canada): E (Corrosive material)
Other Information: Users must ensure compliance with all applicable regulations governing hazardous chemical use and disposal in their jurisdiction
