Product Name: 1-Hexyl-3-Methylimidazolium Acetate
Synonyms: HMIM Acetate, C6mim AcO
Chemical Formula: C12H22N2O2
CAS Number: 646-93-1
Recommended Use: Solvent for cellulose processing, CO2 capture, chemical synthesis
Supplier Details: Manufacturer’s name, address, and emergency contact number
GHS Classification: Skin irritation (Category 2), Eye irritation (Category 2A), Acute aquatic toxicity (Category 3), Specific target organ toxicity (single exposure) (Category 3)
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause respiratory irritation, harmful to aquatic life
Pictograms: Exclamation mark, environment
Precautionary Statements: Wash thoroughly after handling, avoid release to the environment, use only outdoors or in well-ventilated area, wear protective gloves and eye protection
Chemical Name: 1-Hexyl-3-Methylimidazolium Acetate
CAS Number: 646-93-1
Concentration: ≥ 98%
Impurities: Trace moisture (<0.5%), trace halides (<0.2%)
Inhalation: Remove person to fresh air, keep at rest, seek medical attention if symptoms persist, administer oxygen if breathing is difficult
Skin Contact: Remove contaminated clothing, rinse skin with water for 15 minutes, obtain medical help for irritation or persistent discomfort
Eye Contact: Rinse with plenty of water for at least 15 minutes, lift eyelids occasionally, remove contact lenses if safe to do, consult ophthalmologist
Ingestion: Rinse mouth, do not induce vomiting, call poison control or a physician, never give anything by mouth to an unconscious person
Most Important Symptoms: Irritation of the respiratory tract, skin redness, eye pain or burning sensation, no known delayed effects
Suitable Extinguishing Media: Dry chemical, CO2, water spray, foam
Unsuitable Media: High-pressure water jets can spread liquid
Specific Hazards: May emit toxic fumes of carbon oxides, nitrogen oxides, and acetic acid during combustion
Protective Equipment for Firefighters: Full protective clothing and self-contained breathing apparatus, avoid inhalation of vapors or combustion residues
Special Procedures: Cool fire-exposed containers with water spray, prevent runoff into drains or waterways
Personal Precautions: Evacuate area, ventilate location, wear protective equipment such as gloves, goggles, and chemical-resistant clothing
Environmental Precautions: Prevent spillage from entering sewers or watercourses, report significant spills to relevant authorities
Methods for Containment: Absorb small spills with inert material like sand or vermiculite, collect in containers for disposal, wash site with water after material pick-up
Additional Advice: Dispose according to local regulations, avoid incompatible cleaning agents or tools
Handling: Use with adequate ventilation, avoid contact with skin and eyes, do not breathe vapor or mist, use personal protection provided for chemical handling
Hygiene Recommendations: Wash hands after handling, remove contaminated clothing before entering eating areas
Storage Conditions: Store in tightly closed containers, keep in cool, dry, well-ventilated areas away from sources of heat and ignition, protect from moisture
Incompatible Materials: Strong oxidizers, acids, strong bases, halogenated compounds
Safe Packaging Materials: Use HDPE, glass, or steel containers resistant to ionic liquids
Occupational Exposure Limits: No established limits for this substance; follow general workplace safety guidelines
Engineering Controls: Use fume hood or local exhaust ventilation to minimize exposure
Personal Protective Equipment (PPE): Chemical-resistant gloves (nitrile, PVC), safety goggles, lab coat or chemical apron, closed footwear
Respiratory Protection: Use approved respirators if exposure limits are exceeded or inhalation risks exist
Environmental Controls: Minimize emissions to air and water, implement spill and leak containment systems
Appearance: Colorless to pale yellow liquid
Odor: Mild, acetate-like odor
pH: Not available, but mildly basic in aqueous solution
Melting Point/Freezing Point: -20°C
Boiling Point: Near 310°C at atmospheric pressure (decomposition may occur before boiling)
Flash Point: >180°C (closed cup)
Viscosity: 70–120 mPa·s at 25°C
Solubility: Miscible with water and many organic solvents
Density: 1.06–1.10 g/cm³ at 25°C
Vapor Pressure: Negligible at room temperature
Partition Coefficient: Log Kow not determined
Decomposition Temperature: Above 180°C, may decompose with heat
Evaporation Rate: Not volatile under ambient conditions
Chemical Stability: Stable under normal conditions, sensitive to moisture and strong oxidizers
Reactivity: Reacts vigorously with strong acid or strong base, may hydrolyze slowly in presence of water
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, acetic acid, imidazole derivatives
Polymerization: Not expected
Incompatibility: Oxidizing agents, strong acids or bases accelerate decomposition
Acute Toxicity: Low oral and dermal toxicity in laboratory animals, exact LD50 not established
Skin Corrosion/Irritation: Causes moderate skin irritation, may provoke redness and dryness
Eye Damage/Irritation: Causes eye discomfort, watering, possible burning sensation
Respiratory Effects: Mist or vapor inhalation may cause coughing, respiratory tract irritation
Chronic Effects: Prolonged skin exposure may lead to irritation or allergic responses, not classified as carcinogen or mutagen, no reproductive toxicity data available
Other Health Effects: No known significant acute or chronic effects beyond irritation
Ecotoxicity: Moderately toxic to aquatic organisms, LC50 (fish) >10 mg/L but <100 mg/L
Persistence and Degradability: Not readily biodegradable, may persist in the environment
Bioaccumulation Potential: Low potential for bioaccumulation due to solubility and breakdown in water
Mobility in Soil: Mobile in aqueous phase, possible migration to groundwater if released
Other Adverse Effects: Avoid direct release to surface water, potential risk to aquatic life if uncontrolled discharge occurs
Waste Disposal Methods: Dispose of contents and container in accordance with local, regional, and national regulations
Container Disposal: Triple rinse containers, render unusable, and send to licensed chemical waste facility
Incineration: Permitted for this compound, but notify incinerator operator due to possible emission of toxic fumes
Special Precautions: Do not discharge to natural waters, avoid landfill unless approved for chemical waste, comply with environmental guidelines for hazardous materials
UN Number: Not regulated as hazardous for most transport routes
Transport Hazard Class: Not classified as dangerous goods
Packing Group: Not applicable
Proper Shipping Name: 1-Hexyl-3-Methylimidazolium Acetate
Special Precautions for User: Properly label containers, keep them tightly sealed, ensure carriers are informed of physical and chemical properties
Environmental Hazards: Not specifically regulated, but bulk shipments should avoid waterway exposure
US Regulation: Not listed as a hazardous substance under OSHA, CERCLA, or SARA Title III; comply with employee right-to-know and safe handling rules
EU Regulation: Not classified under REACH as a substance of very high concern, safety data sheet required for industrial supply
Canada: No domestic substances list reporting required; treated under general chemical safety rules
Other International: Follow IATA, IMDG, and local transport authority guidelines; ensure export/import notifications for large quantities
Labeling: Containers must display appropriate hazard pictograms, precautionary statements, and emergency procedures per GHS recommendations
