Product Name: 1-Hexadecyl-2,3-Dimethylimidazolium Bromide
Chemical Formula: C21H43BrN2
Synonyms: Hexadecyl-Dimethylimidazolium Bromide
CAS Number: 646449-13-6
Recommended Use: Laboratory reagent, research chemical
Supplier: Check product packaging for contact information
Emergency Telephone: Refer to local poison control or hazardous materials team
Classification: Acute toxicity (oral, dermal), skin and eye irritation, possible corrosive effects
Hazard Statements: Harmful if swallowed, contact with skin or eyes causes irritation, potential to cause respiratory distress if inhaled as dust
Precautionary Statements: Avoid rise of dust, use suitable eye and skin protection, do not eat, drink or smoke with contaminated hands
Pictograms: Exclamation mark, corrosive symbol
Signal Word: Warning
Health Effects: Irritates mucous membranes, eyes, and skin, long contact may lead to burns or dermatitis, ingestion can cause gastrointestinal distress
Chemical Identifier: 1-Hexadecyl-2,3-Dimethylimidazolium Bromide
Concentration: 98-100%
Impurities: None identified at significant levels
Molecular Weight: 419.48 g/mol
Ingredient Disclosure: No other hazardous ingredients known
Inhalation: Move person to fresh air; if respiratory symptoms persist, seek medical assistance immediately
Skin Contact: Remove contaminated clothing, wash area with soap and water for several minutes, contact physician for ongoing irritation
Eye Contact: Flush gently with clean water for at least fifteen minutes, hold eyelids open, seek prompt medical attention
Ingestion: Rinse mouth, give water if conscious, do not induce vomiting, visit healthcare provider swiftly
Important Symptoms: Redness, blistering, cough, headache, nausea, chest pain when inhaled in dust form
Medical Attention: Symptomatic treatment as required, monitor for allergic reaction or chemical burns
Suitable Extinguishing Media: Dry chemical, carbon dioxide, alcohol-resistant foam
Unsuitable Media: Water spray could spread fire
Unusual Hazards: Decomposes under heat to release toxic fumes (nitrogen oxides, hydrogen bromide)
Protective Equipment: Self-contained breathing apparatus, full protective clothing for firefighters
Advice for Firefighters: Remove containers if safe, water mist to cool surfaces, stay upwind as smoke is hazardous
Personal Precautions: Evacuate unprotected personnel, avoid breathing dust, ventilate area thoroughly
Environmental Precautions: Prevent entry into drains and waterways, contain spill carefully, report significant releases to regulatory agencies
Cleanup Methods: Pick up with inert absorbent (sand, earth), use spark-proof tools, place residue in tightly sealed containers for disposal, decontaminate area with mild detergent
Disposal of Materials: Dispose of collected material as hazardous chemical waste under local, regional, or federal regulations
Safe Handling: Minimize dust generation, use only in well-ventilated areas, wear proper safety equipment (gloves, goggles, lab coat), avoid direct contact and ingestion, wash hands and arms after handling
Storage Conditions: Store in tightly closed original containers, in a cool, dry, and well-ventilated location away from incompatible substances (strong oxidizers, acids), protect from moisture and direct sunlight
Special Requirements: Label containers clearly, restrict access to trained personnel, use secondary containment to avoid accidental release
Permissible Exposure Limits: Not set for this specific compound, control exposure as a nuisance dust or as specified by risk assessment
Engineering Controls: Local exhaust ventilation, fume hood for large scale handling, closed systems preferred
Personal Protective Equipment: Chemical resistant gloves (nitrile, neoprene), splash goggles, lab coat, dust mask or full-face respirator where dust is generated
Hygiene Measures: Wash thoroughly after use, remove contaminated clothing and launder before reuse, avoid eating, drinking, or smoking in areas where chemical is used
Environmental Controls: Regularly inspect and maintain control equipment, filter exhaust air if possible
Appearance: White or off-white powder or crystalline solid
Odor: Faint, characteristic amine odor
Odor Threshold: Not established
pH: Approx. 6.0-8.0 (1% solution)
Melting Point/Freezing Point: 95°C – 98°C
Boiling Point: Decomposes before boiling
Flash Point: Not applicable (solid, no flash point measured)
Evaporation Rate: Not available
Flammability: Not classified as flammable
Vapor Pressure: Negligible at room temperature
Vapor Density: Not volatile
Relative Density: 1.1 - 1.3 g/cm³ (estimated)
Water Solubility: Moderately soluble
Partition Coefficient (n-octanol/water): Not determined
Auto-Ignition Temperature: Not established
Decomposition Temperature: >200°C
Viscosity: Not applicable
Chemical Stability: Stable at room temperature under recommended storage conditions
Reactivity: No reactive hazards under normal use and storage
Hazardous Reactions: Strong oxidizers and acids may cause violent decomposition
Decomposition Products: Hydrogen bromide, methylamine, nitrogen oxides, imidazole derivatives
Conditions to Avoid: Heat, exposure to sunlight, moisture, sources of ignition
Incompatible Materials: Strong oxidizing agents, strong acids, bases
Polymerization: Not known to occur
Sites of Exposure: Eyes, skin, respiratory tract
Acute Effects: Swallowing produces nausea, vomiting, abdominal distress, possible nervous system symptoms; skin exposure can cause burning sensations, erythema, blistering with extended contact; inhalation can lead to throat and lung irritation, wheezing, and cough
Chronic Effects: Prolonged or repeated exposure may cause skin dryness or cracking, sensitization possible but not confirmed
LD50 (oral, rat): Not determined rigorously, estimated as moderately hazardous based on structural analogs
Carcinogenicity: No data suggest cancer risk, not classified by IARC, NTP, or OSHA
Mutagenicity: No mutagenicity data available for this compound
Reproductive Toxicity: Not enough data to assess
Other Data: Persons with chronic respiratory or skin conditions might show aggravated symptoms on exposure
Environmental Fate: Not readily biodegradable, potential for moderate to high persistence in soil and water
Aquatic Toxicity: May be harmful to aquatic life at low concentrations; studies in similar quaternary ammonium compounds show moderate toxicity to fish, daphnia, and algae
Bioaccumulative Potential: Higher for long alkyl chains, possibility exists, but no direct data
Mobility in Soil: Intermediate; binds to soil matter tightly, could leach under specific conditions
Other Adverse Effects: No ozone depletion or greenhouse potential reported
Waste Methods: Collect solid or liquid residues in suitable containers, seal tightly, do not discharge untreated to drains or environment, treat contents as hazardous chemical waste
Disposal of Container: Rinse containers thoroughly before discarding, follow regulations for hazardous container disposal
Local Requirements: Strict adherence to local, state, national, and international waste regulations mandatory
Incineration: Permitted at licensed chemical incinerators where combustion byproducts are scrubbed
Landfill: Not preferred due to persistence, allowed only if legal and with proper containment
UN Number: Not officially classified, recommend generic entry for hazardous laboratory chemicals
UN Proper Shipping Name: Not regulated, ship as hazardous substance if mixed in solution
Transport Hazard Class: Not currently assigned
Packing Group: Not assigned
Marine Pollutant: Not classified but care advised as may harm aquatic environments
Special Precautions: Package securely to prevent leaks, use rigid secondary containment, transport with copies of this sheet for emergency responders
Inventory Status: Not listed on US TSCA or Canadian DSL
SARA / OSHA Status: Not a designated hazardous substance, precaution required in workplaces per general chemical safety rules
EU Regulation: Not classified under current European directives
Other Regulation: Workplace must maintain safety training, documentation, proper signage
Labeling: Clear chemical name, hazard pictograms, supplier information mandatory on all containers
Additional Requirements: Subject to local workplace exposure monitoring, emergency plans for accidental exposure or release, regular training updates for chemical handling
