Product Name: Octyltrimethylammonium Bromide
Synonyms: N,N,N-Trimethyloctan-1-aminium bromide
Molecular Formula: C11H26BrN
Molecular Weight: 268.24 g/mol
CAS Number: 2082-84-0
Manufacturer: Refer to local supplier or principal distributor
Recommended Use: Surfactant, phase transfer catalyst, chemical research
Emergency Contact: Local Poison Control Center; Emergency response line depends on country and supplier
GHS Classification: Skin and eye irritant, acute toxicity (oral, moderate)
Signal Word: Warning
Hazard Statements: May cause skin and eye irritation. Harmful if swallowed. May cause respiratory tract irritation. Toxic to aquatic organisms with potential for long-term adverse effects.
Pictograms: Exclamation mark, Environment
Precautionary Statements: Avoid breathing dust or mist. Use only outdoors or in well-ventilated area. Wear protective gloves and eye protection. Avoid release to environment.
Potential Health Effects: Repeated or prolonged exposure can cause dermatitis or eye injury. Swallowing may irritate gastrointestinal tract.
Chemical Name: Octyltrimethylammonium Bromide
Common Name: OTAB
CAS Number: 2082-84-0
Purity: ≥98%
Impurities: No significant impurities expected based on current manufacturing information
Ingredient Status: No component present at concentrations above reportable thresholds other than active ingredient
Inhalation: Move person to fresh air. Provide oxygen if breathing is difficult. Seek medical attention for symptoms such as coughing or throat irritation.
Skin Contact: Remove contaminated clothing. Wash affected area thoroughly with soap and water. Seek care for persistent irritation.
Eye Contact: Rinse cautiously with lukewarm running water for at least 15 minutes. Remove contact lenses if present and easy to do. Immediate medical attention is recommended.
Ingestion: Rinse mouth with water (do not induce vomiting). Provide water to drink. Seek immediate medical advice.
Most important symptoms: Redness, itching, swelling, gastrointestinal discomfort, nausea, headache. Medical personnel should call Poison Control for further guidance.
Suitable Extinguishing Media: Water spray, dry chemical powder, carbon dioxide, or foam. Select based on surrounding materials.
Unsuitable Extinguishing Media: Do not use direct water jet on burning material.
Fire-Specific Hazards: Can release toxic and irritating fumes including carbon oxides, nitrogen oxides, hydrogen bromide upon decomposition.
Protective Equipment: Firefighters should wear self-contained breathing apparatus and chemical-resistant clothing.
Special Precautions: Use water spray to cool containers exposed to flames. Prevent runoff from firefighting measures entering waterways.
Personal Precautions: Use suitable protective gear. Avoid breathing dust. Ensure adequate ventilation.
Environmental Precautions: Prevent further spillage or leakage. Contain spill to avoid contamination of soil or water bodies.
Methods for Clean-Up: Vacuum or sweep up material and place into a suitable container for disposal. Use damp cloth to avoid dust formation. Wash spill site after material pick-up is complete.
Emergency Procedures: Evacuate area if needed. Notify authorities if large spill enters waterways or environmental release is significant.
Safe Handling: Avoid direct contact with substance. Keep container tightly closed when not in use. Wash hands after handling.
Incompatible Materials: Strong oxidizers, strong acids, and reducing agents.
Storage Requirements: Store in a cool, dry, well-ventilated place away from sources of ignition and direct sunlight. Use corrosion-resistant containers.
Other Considerations: Segregate from food and feed. Keep out of reach of children and untrained users.
Occupational Exposure Limits: No established ACGIH or OSHA limits for this compound.
Engineering Controls: Process enclosure, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits.
Personal Protective Equipment: Use gloves made of nitrile or latex, safety goggles, lab coat, and, when risk of dust inhalation exists, a particulate respirator (P2 or N95 equivalent).
Environmental Controls: Prevent spillage from contaminating soil and water systems. Use secondary containment where feasible.
Appearance: White or off-white crystalline solid or powder
Odor: Odorless or mild
pH: Not determined for solid material. 5-8 (1% aqueous solution).
Melting Point: Approximately 242–244°C
Boiling Point: Not applicable; decomposes
Solubility: Soluble in water, ethanol, and acetone. Slightly soluble in non-polar solvents.
Density: Around 1.2 g/cm³ (solid)
Vapor Pressure: Negligible at ambient conditions
Partition Coefficient (log Kow): 2.6 (estimated)
Auto-Ignition Temperature: Data not available
Flash Point: Not applicable (non-flammable solid at room temperature)
Chemical Stability: Stable under normal storage and handling conditions.
Hazardous Reactions: Avoid strong oxidizers and acids. Can react with incompatible substances releasing toxic fumes.
Decomposition Products: May generate toxic bromide fumes, carbon monoxide, carbon dioxide, and nitrogen oxides when overheated or burned.
Conditions to Avoid: Excessive heat, open flames, sources of ignition, direct sunlight, and moisture.
Acute Toxicity: LD50 (oral, rat): 300–2000 mg/kg.
Skin Irritation: Causes moderate skin irritation with direct contact.
Eye Irritation: Causes significant irritation and redness.
Inhalation Risk: Dust may irritate nose, throat, and lungs.
Chronic Effects: Prolonged or repeated exposure may cause dermatitis and possible liver or kidney effects in laboratory animals.
Sensitization: Not expected to cause skin sensitization.
Carcinogenicity, Mutagenicity, Reproductive Toxicity: Not classified as carcinogen by IARC, NTP, OSHA. No data showing genetic, reproductive or developmental toxicity in standard screening tests.
Ecotoxicity: Harmful to aquatic organisms, potential for long-term negative effects on aquatic environments. LC50 (fish, 96 h): 2–10 mg/L. EC50 (daphnia, 48 h): 1–5 mg/L.
Mobility: Moderately mobile in soil; potential to leach into groundwater depending on soil type.
Persistence and Degradability: Not readily biodegradable under standard testing conditions. May persist in aquatic systems.
Bioaccumulative Potential: Moderate, based on partition coefficient.
Other Adverse Effects: Product should not enter drains, soil, or water bodies in significant quantities.
Waste Treatment Methods: Dispose of according to local, regional, or national regulations. Waste should be incinerated in approved chemical incinerators.
Container Disposal: Triple-rinse containers, then puncture and dispose as hazardous waste. Do not reuse empty containers.
Environmental Precautions: Avoid uncontrolled release to environment. Prevent entry into surface waters.
Special Notes: Consult local regulatory agencies for specific instructions.
UN Number: Not regulated under most international transport regulations (ADR/RID, IMDG, IATA).
Proper Shipping Name: Not classified as a dangerous good.
Hazard Class: None assigned.
Packing Group: None.
Special Precautions: In case of large quantities or spillage during transit, follow company’s hazardous material response procedures. Transport in secure, sealed, and upright containers.
TSCA Status: Listed on US Toxic Substances Control Act (TSCA) inventory.
REACH Status: All components compliant with REACH regulations in Europe.
Other International Inventories: Australia AICS: Listed. Canada DSL: Listed. Korea ECL: Listed. Japan ENCS: Listed.
OSHA Hazard Communication: Classified as irritant. Requires appropriate labeling and training.
SARA Title III (Sections 302, 311/312, 313): Not subject to reporting requirements.
California Proposition 65: Not listed
WHMIS Classification: Class D2B (Toxic Material Causing Other Toxic Effects)
Label Elements: EC Labeling: Xi (Irritant), N (Dangerous for environment). Risk phrases: R36/38, R51/53. Safety phrases: S26, S61.
