Product Name: 1-Hexyl-3-Methylimidazolium Methanesulfonate
Chemical Formula: C11H22N2O3S
Molecular Weight: 262.37 g/mol
SYNONYMS: [HMIM][MeSO3], 1-Hexyl-3-methylimidazolium methylsulfonate
CAS Number: 262297-13-2
Recommended Use: Solvent, ionic liquid, specialty chemical for research
Supplier: Specialty chemical supplier or research laboratory
Emergency Contact: Refer to supplier contact card, local emergency services number
Classification: Eye irritation, Skin irritation, Hazardous to aquatic life
Signal Word: Warning
Hazard Statements: Causes serious eye irritation; may cause skin irritation; toxic to aquatic organisms with long lasting effects
Pictograms: Exclamation mark, Environment
Precautionary Statements: Wash hands thoroughly after handling; avoid release to the environment; wear protective gloves and eye protection; if in eyes rinse cautiously with water for several minutes; remove contact lenses if present; continue rinsing; if skin irritation occurs get medical advice.
Chemical Identity: 1-Hexyl-3-methylimidazolium methanesulfonate
Concentration: 98% or greater (ensure purity matches lot-specific COA)
Impurities/Additives: May include trace residuals from synthetic process (e.g. sulfur dioxide, organics, water)
Hazardous Components: No known additional hazardous components above regulatory disclosure thresholds
Identification Numbers: CAS 262297-13-2, EC 809-234-7
Inhalation: Move to fresh air; keep patient at rest and seek medical advice if symptoms develop
Skin Contact: Wash exposed skin thoroughly with soap and water; remove contaminated clothing and launder before reuse; seek medical attention if irritation occurs
Eye Contact: Rinse cautiously with water for at least 15 minutes, keeping eyelids open; remove contact lenses if possible; obtain medical attention immediately
Ingestion: Rinse mouth well; do not induce vomiting; seek prompt medical evaluation and provide product label
Symptoms: Irritation to eyes and skin, respiratory discomfort if inhaled, gastric upset if swallowed
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, water spray, alcohol-resistant foam
Unsuitable Media: High-pressure water jet (can cause hazardous splattering or product spread)
Fire Hazards: May emit toxic fumes of nitrogen oxides, sulfur oxides, carbon monoxide, carbon dioxide
Special Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective clothing
Advice for Firefighters: Cool containers with water spray away from exposure, prevent runoff from entering sewers or waterways; evacuate area
Explosion Data: Product does not present known explosive properties
Personal Precautions: Isolate leak or spill area; avoid breathing vapors or mists; use personal protective equipment (PPE) including gloves, goggles and lab coat
Environmental Precautions: Prevent large spills from entering water, soil, or drainage system; inform responsible authorities in event of significant contamination
Clean-up Methods: Soak up with inert absorbent material (sand, earth, diatomaceous earth); collect and place in labeled containers for disposal; ventilate affected area
Decontamination: Wash surfaces with soap and plenty of water after cleanup; dispose of wash water properly
Handling Precautions: Use in well-ventilated areas; avoid contact with skin and eyes; avoid inhalation of vapors, dust or mist; never eat, drink or smoke in areas of use
Storage Conditions: Store in tightly closed original container, in a cool, dry, and well-ventilated location; keep separate from strong oxidizing agents, strong acids and bases; protect from direct sunlight and sources of ignition
Incompatible Materials: Strong oxidizers, strong acids, aluminum
Hygiene: Wash hands before breaks and after handling; launder contaminated clothing
Control Parameters: No established occupational exposure limits for this compound; follow good laboratory and chemical hygiene practices
Engineering Controls: Use with local exhaust ventilation, fume hood recommended for all handling in open vessels
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), lab coat, safety goggles with side-shields or face shield, suitable respiratory protection if ventilation inadequate
Environmental Controls: Prevent discharge into drains or the environment by using retained sumps or spill trays
Appearance: Colorless to pale yellow, viscous liquid
Odor: Faint, slightly characteristic
Boiling Point: Decomposes before boiling (above 250°C reported)
Melting Point: Below room temperature (approx. 5-18°C, depends on purity)
Density: 1.14–1.18 g/cm³ at 25°C
Solubility: Readily soluble in water and polar organic solvents
Viscosity: High viscosity at room temperature (200–500 mPa·s)
pH: Neutral to slightly acidic (5.0–7.0 in aqueous solution)
Vapor Pressure: Negligible at ambient conditions
Partition Coefficient: Not readily partitioned, low octanol/water coefficient
Auto-ignition Temperature: Not easily auto-ignitable, typically well above normal ambient range
Chemical Stability: Stable under recommended handling and storage conditions
Hazardous Reactions: Could react with strong oxidizers, strong bases, and reactive metals such as sodium or aluminum
Decomposition: Can produce hazardous products at elevated temperatures, such as NOx, SOx, and COx
Polymers: Not prone to polymerization
Conditions to Avoid: Excessive heat, contact with incompatible substances, direct sunlight
Acute Toxicity: Data limited; estimated oral LD50 (rat) > 2000 mg/kg based on analogs; not classified as acutely toxic by ingestion or inhalation according to available data
Skin Corrosion/Irritation: May cause mild to moderate skin irritation on prolonged or repeated contact
Eye Damage/Irritation: Causes eye irritation, redness and discomfort
Respiratory Effects: Vapor or mists can irritate upper respiratory tract
Sensitization: No reliable data on sensitization available
Chronic Toxicity: No classification for carcinogenicity, mutagenicity, or reproductive toxicity due to limited data
Target Organ Effects: No specific organ toxicity identified
Ecotoxicity: Toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Not readily biodegradable; ionic liquids tend to persist in the environment
Potential Bioaccumulation: Limited potential for bioaccumulation due to low octanol-water partitioning
Mobility in Soil: High water solubility and low volatility increases risk of leaching into groundwater
Other Adverse Effects: Avoid uncontrolled release; can disrupt aquatic ecosystems even at low concentrations
Waste Disposal: Treat as hazardous chemical waste; incineration in approved facility preferred; follow local, regional, and national regulations
Container Handling: Triple rinse before disposal, ensure complete removal of product; do not reuse empty containers
Special Precautions: Avoid release into sewage, water bodies, or soils; consult with qualified waste disposal contractor
UN Number: Not classified as a dangerous good under current transport regulations (IMDG, IATA, ADR)
Shipping Name: 1-Hexyl-3-methylimidazolium methanesulfonate
Packing Group: Not assigned
Transport Hazards Class: No dangerous class assigned for shipping purposes
Environmental Hazards: Label as hazardous to aquatic environment if shipping large quantities
EU CLP Regulation: Classified as Eye Irritant (Category 2), Aquatic Chronic (Category 2)
OSHA Status: Not specifically regulated as a hazardous substance
TSCA Inventory: May not be listed, intended for research and development use only
REACH Status: Not registered for commercial use; substance intended for laboratory settings
WHMIS Classification: Not classified; general chemical precautions apply
Other Regulations: Manage in conformance with local, national, and international regulations for chemicals with aquatic toxicity risks
