MSDS for 1-Hexyl-2,3-Dimethylimidazolium Bis((Trifluoromethyl)Sulfonyl)Imide

1. Identification

Product Name: 1-Hexyl-2,3-Dimethylimidazolium Bis((Trifluoromethyl)Sulfonyl)Imide
Synonyms: [HMIM][NTf2], Ionic Liquid [HMIM][NTf2]
Recommended Use: Laboratory chemicals, industrial processing, specialty catalysis, solvent
Supplier: Manufacturer or distributor details as per purchase source
Emergency Contact: Refer to the distributor’s 24-hour hotline; standard emergency numbers for chemical incidents
CAS Number: 738596-47-5

2. Hazard Identification

GHS Classification: Eye irritation (Category 2), Skin irritation (Category 2), Specific target organ toxicity single exposure (Category 3), Aquatic Chronic (Category 3)
Label Elements: Pictogram: Exclamation mark
Signal Word: Warning
Hazard Statements: Causes serious eye irritation; causes skin irritation; may cause respiratory irritation; harmful to aquatic life with long-lasting effects
Precautionary Statements: Avoid breathing dust or vapors, wash thoroughly after handling, use only outdoors or in well-ventilated area, wear eye protection and gloves
Other Hazards: Vapors from heated product irritate mucous membranes, may cause local skin and eye damage, persistent in environments

3. Composition / Information on Ingredients

Chemical Name: 1-Hexyl-2,3-Dimethylimidazolium bis(trifluoromethylsulfonyl)imide
CAS Number: 738596-47-5
Impurities: Less than 1% hydrolytic or related substances as common by-products
EINECS Number: Not assigned
Formula: C13H23F6N3O4S2
Concentration: Greater than 98% neat substance

4. First Aid Measures

Eye Contact: Rinse with running water for at least 15 minutes; hold eyelids open; seek medical advice
Skin Contact: Wash with soap and water; remove contaminated clothing; seek medical advice if irritation appears
Inhalation: Remove from exposure; move to fresh air; provide artificial respiration if breathing has stopped; seek medical attention
Ingestion: Rinse mouth; do not induce vomiting unless directed; consult a physician
Notes for Physicians: Treat symptomatically; no specific antitote

5. Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray
Hazards from Combustion: Releases hydrogen fluoride, sulfur oxides, nitrogen oxides, carbon oxides, possible imidazole derivatives
Protective Equipment: Self-contained breathing apparatus and full protective suit
Special Precautions: Evacuate area; avoid inhaling decomposition or combustion gases; prevent runoff contamination

6. Accidental Release Measures

Personal Precautions: Wear suitable gloves, goggles, and protective clothing; avoid contact with skin and eyes; ensure adequate ventilation
Environmental Precautions: Prevent spillage into drains, surface and ground waters; alert local environmental agencies in case of large release
Cleanup Methods: Absorb with inert material (sand, vermiculite); shovel into labelled containers; wash spill area with detergent and water
Disposal Considerations: Seal waste for disposal by licensed chemical waste contractor

7. Handling and Storage

Precautions for Safe Handling: Use only in well-ventilated areas; avoid breathing vapors; avoid contact with skin and eyes; avoid ingestion; keep containers tightly closed
Hygiene Measures: No eating, drinking or smoking while handling; wash thoroughly after handling
Conditions for Safe Storage: Store in a cool, dry, well-ventilated area; away from strong acids, bases, oxidizers; keep container tightly sealed; avoid sunlight and excess heat
Incompatible Products: Strong oxidants, water-reactive substances, strong bases or acids, sources of ignition

8. Exposure Controls and Personal Protection

Occupational Exposure Limits: No specific national limits established
Engineering Controls: Local exhaust ventilation recommended; handle inside chemical fume hood for laboratory use
Personal Protective Equipment: Safety glasses or goggles, chemical resistant gloves (nitrile), protective lab coat, avoid breathing dust or mist, respiratory protection for high vapor concentrations
Environmental Controls: Avoid release to the environment where possible

9. Physical and Chemical Properties

Appearance: Clear to pale yellow liquid
Odor: Slight, characteristic
Odor Threshold: Not available
pH: Neutral to slightly acidic aqueous solution
Melting Point/Freezing Point: -10°C to 15°C (varies with purity and water content)
Boiling Point/Range: Decomposes before boiling, typically stable up to 250°C
Flash Point: >140°C (closed cup)
Evaporation Rate: Negligible
Flammability: Non-flammable liquid
Vapor Pressure: Extremely low (less than 0.01 mmHg at 25°C)
Vapor Density: Not determined
Relative Density: 1.44–1.47 g/cm³ at 20°C
Solubility: Soluble in water, ethanol, and most organic solvents
Partition Coefficient (n-octanol/water): Log Kow typically in range of 1–3
Autoignition Temperature: Not available
Decomposition Temp: Above 250°C
Viscosity: 50-75 cP at 25°C

10. Stability and Reactivity

Chemical Stability: Stable under normal ambient and anticipated storage conditions
Conditions to Avoid: High temperatures, moisture, prolonged exposure to air
Incompatible Materials: Strong acids, alkalis, oxidizers, reactive metals
Hazardous Decomposition Products: Hydrogen fluoride, sulfur oxides, nitrogen oxides, toxic fumes, organic fragments
Reactivity: Not reactive under standard handling; avoid mixing with reactive substances

11. Toxicological Information

Acute Toxicity: Low oral and dermal toxicity in rats (oral LD50 > 2000 mg/kg); inhalation data not established
Skin Corrosion/Irritation: May cause moderate irritation upon prolonged or repeated exposure
Serious Eye Damage/Irritation: Can cause severe eye irritation, redness, discomfort
Respiratory or Skin Sensitization: Some reports of allergic responses with repeated handling
Chronic Effects: Prolonged exposure may affect liver and kidneys based on structurally similar ionic liquids
Other Information: No evidence of carcinogenicity, mutagenicity, reproductive toxicity based on current data

12. Ecological Information

Ecotoxicity: Harmful to aquatic organisms, may cause long-term adverse effects in aquatic environment
Persistence and Degradability: Not readily biodegradable, persisting for weeks/months in soils and waters
Bioaccumulative Potential: Moderate potential for bioaccumulation in aquatic biota
Mobility in Soil: Moderately mobile; may leach in wet soils
Other Adverse Effects: Toxic to algae, daphnia, and fish (EC50/LC50: 1–10 mg/L); avoid release to watercourses

13. Disposal Considerations

Waste Methods: Collect and seal waste in approved chemical containers; consign for incineration by licensed waste disposal contractor
Special Precautions: Do not discharge into drains, surface water, or soil; triple rinse empty containers before discarding; comply with local, national, and international waste regulations
Contaminated Packaging: Treat as hazardous chemical waste

14. Transport Information

UN Number: Not classified as dangerous goods for transport; all containers must be sturdy and clearly labelled
Proper Shipping Name: Not regulated under ADR, IMDG, IATA codes
Transport Hazard Class: None allocated
Packing Group: None allocated
Marine Pollutant: Yes, due to aquatic toxicity; avoid transport near waterways
Special Precautions: Ensure upright transport; monitor for leaks during transit; communicate hazards to handlers

15. Regulatory Information

EU Regulations: Not listed on REACH Annex XIV or SVHC; observe workplace controls
USA Regulations: Not listed under TSCA, CERCLA priority pollutant list; SARA Title III not triggered
Canada Regulations: Not on DSL or NDSL
Labelling Requirements: Conforms to GHS hazard statements, pictograms, and signal word use
Other Regulatory Info: Observe all applicable health, safety, environmental labor regulations governing use and waste