Chemical Name: 1-Octyl-3-Methylimidazolium Bromide
Synonyms: [OMIM]Br, 1-Methyl-3-octylimidazolium bromide
Molecular Formula: C12H23BrN2
Molecular Weight: 275.23 g/mol
CAS Number: 246047-72-3
Recommended Use: Laboratory chemicals, research and development, ionic liquids applications, solvents, catalysis, material synthesis
Supplier Information: Chemical supplier details included with shipment or request, emergency telephone number distributed per regulations
GHS Classification: Acute Toxicity (Oral) Category 4, Skin Irritant Category 2, Eye Irritant Category 2A, Aquatic Chronic Category 3
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation, harmful to aquatic life with long-term effects
Pictograms: Exclamation mark, environment
Precautionary Statements: Avoid breathing dust/fumes, wash hands thoroughly after handling, avoid release to environment, wear protective gloves and eye protection, if on skin wash with plenty of water, if in eyes rinse cautiously with water then seek medical attention
Chemical Identity: 1-Octyl-3-Methylimidazolium Bromide
CAS Number: 246047-72-3
Concentration: 98% or greater by weight
Impurities: Not expected to be present above 1% as per manufacturer certificate of analysis, trace water and small quantities of related imidazolium species possible
Inhalation: Move affected person to fresh air, keep at rest, seek medical advice if symptoms persist such as coughing or shortness of breath
Skin Contact: Remove contaminated clothing, wash exposed skin with soap and plenty of water, consult a physician if irritation or discomfort develops
Eye Contact: Immediately flush eyes with water for at least 15 minutes lifting eyelids occasionally, remove contact lenses if present and easy to do, seek medical attention for persistent redness or pain
Ingestion: Rinse mouth with water, do not induce vomiting, seek medical advice and show the product label or safety sheet
Suitable Extinguishing Media: Use alcohol-resistant foam, carbon dioxide, dry chemical powder, or water spray
Hazardous Combustion Products: May generate hydrogen bromide gas, nitrogen oxides, carbon monoxide, carbon dioxide upon decomposition
Protective Equipment for Firefighters: Firefighters require self-contained breathing apparatus and full protective gear to prevent contact with skin and eyes
Fire and Explosion Hazards: Product does not form flammable mixtures under normal conditions, may produce dense fumes when heated
Personal Precautions: Evacuate area and ventilate, use appropriate personal protective equipment (gloves, goggles, lab coat, mask), avoid dust generation
Environmental Precautions: Prevent material from entering drains, watercourses, or soil, notify authorities if significant contamination occurs
Cleanup Methods: Scoop or absorb spill with inert material like sand or vermiculite, sweep and place in a suitable, labeled container for disposal, wash area with plenty of water to remove residues, dispose of in accordance with local regulations
Handling: Handle in a chemical fume hood or well-ventilated area, use proper protective equipment to minimize direct contact, avoid generation of dust and breathing vapors
Storage Conditions: Store in tightly closed container, keep in cool and dry location away from moisture, incompatible substances, and strong oxidizing agents
Special Requirements: Maintain good housekeeping, avoid sources of ignition and static charge, label containers clearly with contents and hazard warnings, inspect area regularly for leaks or spills
Exposure Limits: No specific occupational exposure limit for this compound, handle with standard precautions for laboratory chemicals
Engineering Controls: Use local exhaust ventilation or fume hood to minimize exposure, ensure eyewash stations and safety showers are accessible
Personal Protective Equipment: Wear chemical goggles, nitrile or neoprene gloves, laboratory coat, closed shoes, and use a particulate respirator for dust generation
Hygiene Measures: Wash hands thoroughly after use, do not eat, drink, or smoke during handling, launder contaminated clothing before reuse
Appearance: White to off-white crystalline solid
Odor: Mild, characteristic
Odor Threshold: Data not available
pH: 5-7 (1% solution in water)
Melting Point: 70-80 °C
Boiling Point: Decomposes before boiling
Flash Point: > 200 °C (closed cup, estimated)
Evaporation Rate: Not determined
Flammability: Not flammable
Vapor Pressure: Negligible at room temperature
Vapor Density: Not determined
Specific Gravity: 1.1-1.2 (20 °C, water=1)
Solubility: Soluble in water, ethanol, and polar solvents
Partition Coefficient (n-Octanol/Water): Data not available
Auto-Ignition Temperature: Not self-igniting
Decomposition Temperature: > 180 °C
Viscosity: Not available
Chemical Stability: Stable under normal laboratory and storage conditions, sensitive to strong oxidizing agents and high temperatures
Incompatibilities: Strong oxidizers, acidic or basic materials may react, avoid moisture to prevent hydrolysis
Hazardous Decomposition Products: Hydrogen bromide, carbon monoxide, carbon dioxide, nitrogen oxides upon thermal decomposition
Polymerization: Will not occur under normal conditions
Acute Toxicity: Harmful if swallowed; LD50 (oral, rat) estimated > 300 mg/kg, but avoid ingestion due to harmful effects
Skin Corrosion/Irritation: Causes moderate to severe skin irritation with prolonged exposure
Eye Damage/Irritation: Produces redness, pain, and significant eye irritation
Respiratory Sensitization: Inhalation of dust may cause respiratory tract irritation, coughing, or discomfort
Carcinogenicity: No data suggesting carcinogenic activity; not listed by IARC, NTP, or OSHA
Mutagenicity: Not mutagenic in standard tests according to available research
Chronic Toxicity: No long-term studies available; chronic exposure may cause skin and mucous membrane sensitization in susceptible individuals
Ecotoxicity: Harmful to aquatic organisms, potential for long-term adverse effects in aquatic environment
Persistence and Degradability: Slow biodegradation expected, ionic liquids often persistent in aquatic systems
Bioaccumulative Potential: Potential to bioaccumulate in aquatic biota is unknown, but may increase in organisms over time
Mobility in Soil: Compound expected to be mobile in soil due to water solubility
Other Adverse Effects: Discharge into environment should be strictly controlled to avoid build-up in waterways and soil
Waste Disposal: Collect and place waste material in properly labeled, sealed containers; incinerate or dispose in licensed facility according to local, regional, or national regulations
Contaminated Packaging: Triple-rinse containers, dispose as hazardous waste if contaminated; containers may not be reused for food or drink purposes
Precautions: Avoid release to environment or sewage system
UN Number: Not regulated under current international transport codes
Hazard Class: Not classified as dangerous for transport under ADR, RID, IATA, or IMDG
Packing Group: Not assigned
Marine Pollutant: Not identified as a marine pollutant, precaution advised to prevent environmental impact
Special Precautions: Handle with care to avoid spillage, packaging must be secure and labeled according to content
TSCA Status: Not listed specifically, for research use only
EINECS/ELINCS: May not be listed; check with supplier for region-specific coverage
REACH Compliance: Research use may not be subject to registration, confirm for industrial usage
Other Regulations: Compliance with local, national, and international chemical safety and reporting laws required, including safe transport, waste management, and hazard communication standards
Labeling Requirements: Apply GHS hazard symbols and precautionary statements as per local authority rules and workplace safety programs
