Product Name: 1-Hexadecyl-3-Methylimidazolium Bromide
Other Names: HMIMB, C16mimBr
CAS Number: 931-50-2
Recommended Use: Laboratory reagent, ionic liquid, industrial chemical applications
Company Identification: Chemical supplier or manufacturer responsible for safety compliance
Contact Number for Emergency: Local poison center or emergency response agency (e.g., CHEMTREC: +1-800-424-9300)
Classification: Harmful if swallowed or inhaled; causes skin and eye irritation; aquatic environment hazard
Label Elements: Warning symbol (exclamation mark); environmental hazard symbol
Hazard Statements: Harmful if swallowed, can cause irritation to mucous membranes and skin, potential environmental threat to aquatic life with long lasting effects
Precautionary Statements: Avoid breathing dust or fumes; wash hands thoroughly after handling; avoid release to the environment; wear protective gloves, clothing, and eye/face protection; seek medical advice if you feel unwell
Chemical Name: 1-Hexadecyl-3-Methylimidazolium Bromide
Molecular Formula: C22H45BrN2
Concentration: 100% pure unless otherwise indicated
Synonyms: 1-Cetyl-3-Methylimidazolium Bromide, Hexadecylimidazolium Bromide
Impurities: Trace imidazole-based compounds or alkyl bromides from manufacturing
CAS Number: 931-50-2
Inhalation: Move affected person to fresh air immediately; monitor breathing and keep airway clear; administer oxygen if breathing is difficult; consult a physician if symptoms persist
Skin Contact: Remove contaminated clothing; rinse skin warmly with plenty of water and mild soap for at least 15 minutes; seek medical attention if irritation develops
Eye Contact: Rinse carefully with water for several minutes, lifting eyelids to expose all surfaces; remove contact lenses if present; continue rinsing and get medical assistance if irritation continues
Ingestion: Rinse mouth thoroughly with water; never give anything by mouth to an unconscious person; do not induce vomiting; seek immediate medical attention
Symptoms: Burning sensation, redness, coughing, headache, nausea, skin or eye redness
Suitable Extinguishing Media: Dry chemical, carbon dioxide, alcohol-resistant foam, water spray (do not use direct water jet)
Specific Hazards: In case of fire, hazardous gases like hydrogen bromide, nitrogen oxides, carbon oxides can form
Protective Equipment: Firefighters need self-contained breathing apparatus and complete protective gear
Special Procedures: Cool containers exposed to flames with water spray to prevent rupture; contain run-off to prevent environmental damage
Explosion Hazard: Product does not present a significant explosive risk under standard conditions, but may contribute fuel if involved in fire
Personal Precautions: Evacuate area, provide adequate ventilation, prevent inhalation and direct contact; use personal protective equipment (gloves, goggles, respirator if dust forms)
Environmental Precautions: Prevent material from entering drains, watercourses, or soil; inform authorities if environmental contamination occurs
Cleanup Methods: Scoop or sweep up solid spills; wash area with water and absorb with inert material such as sand or vermiculite; keep in sealed containers for disposal; ventilate area
Handling Spills: Approach with caution, wear PPE, avoid creating dust, and collect residues promptly
Safe Handling: Work in a well-ventilated area; minimize dust generation and accumulation; avoid contact with skin, eyes, and clothing; avoid breathing vapors, mist, or dust
Storage: Store in tightly sealed containers, away from moisture, direct sunlight, sources of ignition, strong acids, and oxidizing agents; maintain temperature between 15-25°C
Incompatible Substances: Water, strong acids, strong oxidizing agents, halogenated compounds may cause decomposition
Hygiene Measures: Wash hands and face before eating, drinking, or smoking; keep work clothes separate from other clothing
Exposure Limits: No established occupational exposure limits for this compound
Engineering Controls: Use fume hoods, local exhaust ventilation, and containment if possible
Personal Protection: Safety goggles or face shield, chemical-resistant gloves (nitrile or neoprene), laboratory coat, long pants; use of respirator with particulate filter if ventilation is insufficient or dust/mist forms
Environmental Control: Avoid discharge into the environment; control runoff and provide spill trays for large containers
Appearance: White to off-white crystalline powder
Odor: Faint, characteristic, slightly amine-like
Odor Threshold: Not determined
pH: Not available in solid state; may be slightly acidic in aqueous solution
Melting Point: Approximately 85-90°C
Boiling Point: Decomposes before boiling
Flash Point: Not applicable
Solubility: Soluble in water, alcohols, and some organics
Partition Coefficient (n-octanol/water): Not determined
Vapor Pressure: Negligible at room temperature
Density: Around 1.1 g/cm³
Viscosity: Not applicable as a solid
Evaporation Rate: Not applicable
Chemical Stability: Stable at standard temperature and pressure, tends to decompose on strong heating
Reactivity: Reacts with strong oxidizing agents; hydrolysis can occur with exposure to moisture
Hazardous Reactions: May generate toxic gases if heated or decomposed
Conditions to Avoid: Excessive heat, open flames, exposure to air or light for extended periods, moisture
Decomposition Products: Hydrogen bromide, nitrogen oxides, carbon oxides, imidazole derivatives
Routes of Exposure: Oral, inhalation, skin and eye contact
Acute Effects: Harmful if swallowed or inhaled, irritating to eyes and skin, may cause respiratory discomfort
Chronic Effects: No chronic toxicity data available; prolonged or repeated exposure could lead to dermatitis or sensitization
LD50/LC50 Values: Not fully established for this compound; related imidazolium salts range oral LD50 (rat) ~350-1000 mg/kg
Carcinogenicity: No components classified as carcinogenic by IARC, NTP, or OSHA
Other Data: No evidence of reproductive toxicity or specific target organ toxicity available
Aquatic Toxicity: Expected to be toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Mobility in Soil: No specific data, compound likely absorbs to soil particles; moderate water solubility
Persistence and Degradability: Not readily biodegradable, may remain in environment for long periods
Bioaccumulative Potential: Unlikely to bioaccumulate due to ionic nature, but no definitive data
Other Adverse Effects: Avoid release to waterways or municipal water supplies; potential for harm in case of spills
Disposal Methods: Dispose of as hazardous waste in accordance with local, regional, national, and international regulations; do not dump into drains or surface water
Contaminated Packaging: Rinse containers before disposal, avoid release of washings, dispose of containers as hazardous waste
Special Precautions for Landfill or Incineration: Use professionally licensed hazardous waste contractor; incinerate with afterburner and scrubber to prevent release of harmful gases
UN Number: Not assigned for small laboratory quantities, but treat as hazardous for bulk consignments
DOT/ADR/RID/IMDG/IATA Classification: Not classified as a dangerous good under most regulative frameworks, but subject to local restrictions
Proper Shipping Name: Environmentally hazardous substance, solid, N.O.S. (contains imidazolium bromide)
Packing Group: III (if regulated)
Environmental Hazards: Yes; marine pollutant for bulk shipments
Special Precautions: Carry with spill containment and safety documents; avoid loading near food or feedstuffs
TSCA Status: Listed or exempted; may require reporting (check current status)
EU REACH: Not registered, only authorized uses for research and development
Hazard Pictograms: GHS07 (exclamation mark), GHS09 (environment)
Safety, Health and Environmental Regulations: Follow recommendations of OSHA, EPA, EU CLP Regulation, and local authorities
Other Inventory Information: Covered by various national and international chemical control lists
