Product Name: Dioctyldimethylammonium Bromide
Synonyms: DODAB, Dodecyl ammonium bromide
Chemical Formula: C18H40BrN
CAS Number: 5538-94-3
Manufacturer: Sourced from various chemical suppliers, including laboratory and industrial distributors
Use: Functions as a surfactant, used in microbiology labs, cleaning solutions, and biocidal formulations
Classification: Irritant, toxic to aquatic life
Hazard Statements: Causes skin and eye irritation, harmful if swallowed or inhaled, may present environmental hazard due to aquatic toxicity
Pictograms: Exclamation mark, Environment symbol
Signal Word: Warning
Precautionary Statements: Avoid breathing dust or vapors, wash exposed skin thoroughly, use in a well-ventilated area, avoid release to the environment, wear personal protective equipment
Chemical Identity: Dioctyldimethylammonium Bromide
CAS Number: 5538-94-3
Concentration: 98%-100% purity in typical preparations
Impurities: Trace moisture and unreacted starting materials present in low concentrations depending on source
Inhalation: Move exposed person to fresh air, keep at rest, get medical attention if symptoms develop
Skin: Remove contaminated clothing, rinse exposed area with water for 15 minutes, seek medical help for irritation or persistent symptoms
Eyes: Rinse immediately with plenty of water, remove contact lenses if possible, continue rinsing and call a physician if eye irritation persists
Ingestion: Rinse mouth, avoid inducing vomiting, provide small amount of water or milk, get medical attention promptly
Notes for Doctor: Treat symptomatically, monitor for allergic reactions or respiratory symptoms
Suitable Extinguishing Media: Use dry chemical, foam, or carbon dioxide
Unsuitable Extinguishing Media: Water spray for large fires may spread material
Specific Hazards: Combustion releases toxic gases including nitrogen oxides, bromides, and ammonia compounds
Firefighter Protection: Wear self-contained breathing apparatus, full protective gear, avoid inhaling combustion products
Advice: Evacuate area, control runoff to avoid environmental contamination, use caution due to slippery residues formed after fire
Personal Precautions: Avoid contact with skin, eyes, and clothing, keep unprotected personnel away, ventilate area
Protective Equipment: Chemical-resistant gloves, goggles, lab coat or coveralls, NIOSH-approved respirator if dust or vapors form
Environmental Precautions: Prevent entry into lakes, sewers, or streams, contain spill with appropriate absorbent material
Spill Cleanup: Collect spilled material mechanically, transfer to suitable containers for disposal, clean with water and detergent, avoid dust generation
Safe Handling: Use with adequate ventilation, handle with care to prevent dust, avoid incompatible materials, wash hands thoroughly after handling
Storage Conditions: Store in a cool, dry, well-ventilated area away from sunlight, keep container tightly closed, segregate from strong oxidizers and acids
Incompatibilities: Store apart from strong oxidizing agents, reducing agents, and acidic substances to minimize hazardous reactions
Hygiene: Prohibit eating, drinking, or smoking in work area, implement local exhaust ventilation where dust may form
Exposure Limits: No OSHA or ACGIH established exposure limits for Dioctyldimethylammonium Bromide, general nuisance dust limits may apply
Engineering Controls: Use local and general exhaust, provide eyewash stations and emergency showers
Personal Protective Equipment: Wear gloves (nitrile or neoprene), chemical splash goggles, suitable protective clothing, dust mask or respirator if airborne particles are present
Environmental Exposure Controls: Prevent release into environment, use containment systems for waste and spills
Appearance: White to off-white powder or crystals
Odor: Faint, characteristic amine-like odor
pH (1% solution): About 6-8
Melting Point: Near 227°C
Boiling Point: Decomposes before boiling
Flash Point: Not available; likely not highly flammable
Solubility: Slightly soluble in water, soluble in ethanol and organic solvents
Vapor Pressure: Negligible at room temperature
Density: Approximately 1.0–1.1 g/cm³ at 20°C
Partition Coefficient: Not available
Viscosity: Not applicable for solid
Chemical Stability: Stable under recommended storage and handling conditions
Hazardous Reactions: Reacts with strong oxidizers, acids, or reducing agents, releasing toxic decomposition products
Hazardous Decomposition: May form nitrogen oxides, bromide fumes, and ammonia upon heating or combustion
Conditions to Avoid: Excessive heat, incompatible materials, direct sunlight
Polymerization: Not expected to occur
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: LD50 (oral, rat): estimated between 300–2000 mg/kg, can cause stomach upset, convulsions in high doses
Skin Contact: Can cause local irritation, redness, and discomfort
Eye Contact: May result in pain, redness, tearing, and blurred vision
Chronic Effects: Prolonged exposure can aggravate eczema or skin allergies, repeated inhalation may affect respiratory system
Sensitization: Potential to cause allergic skin reaction in sensitive individuals
Carcinogenicity: Not listed as carcinogen by IARC, NTP, or OSHA
Other Data: Not enough long-term studies for reproductive or mutagenic effects, prudent practice promotes minimizing exposure
Aquatic Toxicity: Harmful to fish and aquatic organisms even at low concentrations, can persist in environment
Persistence and Degradability: May degrade slowly in nature, surfactant properties increase risk to aquatic habitats
Bioaccumulation: Potential exists based on structure, but no high tendency confirmed due to metabolism by microbes
Mobility in Soil: May bind to organic matter, risk of runoff into waterways
Other Effects: Surfactant action can disrupt water surface tension, impacting aquatic plant growth and invertebrate survival
Waste Management: Collect and dispose of waste at a licensed chemical disposal facility, do not discharge into normal drains or environment
Recommended Disposal Method: Incinerate in chemical waste incinerator with afterburner and scrubber, adhere to local, state, and federal regulations
Container Disposal: Empty containers should be rinsed and offered for recycling or proper disposal by approved waste handlers, never reuse unwashed containers
Precautions: Always wear proper protective equipment during handling and disposal
UN Number: 3077
Proper Shipping Name: Environmentally Hazardous Substance, Solid, N.O.S. (Dioctyldimethylammonium Bromide)
Transport Hazard Class: 9 (Miscellaneous dangerous substances and articles)
Packing Group: III
Label Requirements: Environment hazard, standard handling label requirements under ADR, IMDG, IATA
Special Precautions: Check regional transport specifics, secure packaging to prevent spillage, notify carrier of hazardous material
TSCA Status: Listed on the US Toxic Substances Control Act inventory
EINECS/ELINCS: Registered (Europe)
OSHA: Classified as hazardous
WHMIS (Canada): D2B (Toxic)
REACH: Data available for compliance, may require registration above certain volumes
Other Regulations: Subject to local, regional, and international controls as an environmental hazard, product labeling mandates hazard information, workplace training, and access to material safety data
