Material Safety Data Sheet: 1-Hexyl-2,3-Dimethylimidazolium Chloride

Identification

Product Name: 1-Hexyl-2,3-Dimethylimidazolium Chloride
Chemical Family: Imidazolium-based Ionic Liquid
CAS Number: 56038-13-2
Manufacturer: Industrial Chemicals Producer
Recommended Uses: Laboratory solvent, catalysis medium, specialty chemical processes
Emergency Contact: Local poison control center; company emergency spill number

Hazard Identification

GHS Classification: Skin irritant, Eye irritant, Harmful to aquatic life
Signal Word: Warning
Hazard Statements: Causes skin irritation. Causes serious eye irritation. Harmful to aquatic life with long lasting effects. Harmful if swallowed, may irritate respiratory system.
Pictograms: Exclamation mark, environmental hazard symbol
Precautionary Statements: Avoid contact with skin and eyes; avoid release to the environment; use personal protection.

Composition / Information on Ingredients

Chemical Name: 1-Hexyl-2,3-Dimethylimidazolium Chloride
Synonyms: [HMIM]Cl
Concentration: >98%
Impurities: <1% impure content, usually unreacted starting material and minor byproducts

First Aid Measures

Eye Contact: Rinse immediately under gentle flowing water for at least 15 minutes; keep eyelids open; seek medical attention if redness or irritation persists.
Skin Contact: Remove contaminated clothing, wash affected area thoroughly with soap and water; seek advice if symptoms develop.
Inhalation: Move subject to fresh air; support breathing if required; consult medical personnel if effects persist.
Ingestion: Rinse mouth with water; do not induce vomiting unless directed by medical personnel; seek prompt treatment for persistent symptoms.

Fire-Fighting Measures

Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide, water spray
Hazards During Fire: Emits toxic fumes of hydrogen chloride, nitrogen oxides, and carbon monoxide under combustion
Protective Equipment: Use self-contained breathing apparatus and protective clothing
Specific Methods: Cool exposed containers with water; avoid inhalation of fumes; collect contaminated runoff.

Accidental Release Measures

Personal Precautions: Evacuate area; ventilate; wear chemical-resistant gloves, goggles, and suitable clothing
Spill Clean Up Methods: Absorb spill with vermiculite or inert material; collect for disposal; decontaminate surface with water and detergent
Environmental Precautions: Prevent from entering drains or waterways; notify authorities if large spill contaminates water source.

Handling and Storage

Handling: Handle in well-ventilated areas; minimize formation of dust or aerosol; wash hands thoroughly after use; avoid contact with skin, eyes, and clothing
Storage: Store tightly sealed in original container; place in a cool, dry, well-ventilated area away from incompatible materials including strong oxidizers and strong acids; prevent container damage to avoid leaks and spills; keep away from direct sunlight and moisture.

Exposure Controls and Personal Protection

Engineering Controls: Use fume hood or local exhaust if dust or vapor forms; provide eye wash stations and safety showers in laboratory or work area
Personal Protective Equipment: Wear protective lab coat, chemical-resistant gloves (nitrile, butyl), splash-proof safety goggles
Respiratory Protection: Use NIOSH-approved respirator if exposures risk exceeding occupational limits or if ventilation is poor
Hygiene Measures: No eating, drinking, or smoking in work area; remove contaminated clothing and wash thoroughly after exposure

Physical and Chemical Properties

Appearance: White to off-white crystalline solid or powder
Odor: Faint, characteristic odor
Odor Threshold: Not established
pH: 6–8 (5% solution)
Melting Point: 60–70°C
Boiling Point: Decomposes before boiling
Flash Point: >150°C (estimated)
Density: 1.07–1.12 g/cm³ (at 25°C)
Solubility (Water): Soluble
Partition Coefficient (log Kow): Not determined
Vapor Pressure: Negligible at room temperature
Viscosity: Not available

Stability and Reactivity

Chemical Stability: Stable under standard storage and usage conditions
Conditions to Avoid: Excessive heat, moisture, direct sunlight, or sources of ignition
Materials to Avoid: Strong oxidizing agents, strong acids
Hazardous Decomposition Products: Hydrogen chloride, nitrogen oxides, carbon oxides
Polymerization: Does not occur under normal conditions

Toxicological Information

Likely Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Effects: Can cause irritation to skin, eyes, and mucous membranes; if swallowed or inhaled, may produce gastrointestinal upset, coughing, or difficulty breathing
Chronic Effects: Prolonged or repeated contact may produce dermatitis or increased sensitivity
Toxicity Data: No established occupational exposure limits; LD50 (oral, rat): Data not available, but considered moderately toxic based on imidazolium class
Carcinogenicity, Mutagenicity, Reproductive Toxicity: Not listed as carcinogenic by IARC, NTP, OSHA; mutagenicity and teratogenicity data insufficient or not available.

Ecological Information

Ecotoxicity: Toxic to aquatic organisms; can cause long-term adverse effects in aquatic ecosystems
Persistence and Degradability: Not readily biodegradable; may remain in the environment for significant periods
Bioaccumulation Potential: Low to moderate potential for bioaccumulation; based on chemical structure and limited analog data
Mobility in Soil: May leach through soil into groundwater; soluble in water
Other Adverse Effects: Releases chloride ions into water sources; can disrupt local water chemistry.

Disposal Considerations

Product Disposal: Collect material in sealed, labeled containers; avoid disposal to wastewater streams; incinerate via licensed chemical incinerator or send to permitted chemical waste landfill facility
Contaminated Packaging: Decontaminate empty containers before recycling or disposal; dispose as hazardous waste
Local Regulations: Consult national, regional, and local regulations for specific disposal requirements.

Transport Information

UN Number: Not assigned for this compound
UN Proper Shipping Name: Not regulated for transport at this time
Hazard Class: Not classified as dangerous under current transport codes
Packing Group: Not applicable
Environmental Hazards: Not considered marine pollutant, but transporters should prevent releases to environment
Special Precautions: Avoid spillage, ensure container integrity during transport; prepare shipments according to safety requirements for hazardous laboratory chemicals.

Regulatory Information

TSCA Status: Listed or in the process of notification
REACH Status: Registration or notification may be required within the EU
SARA Title III: Not subject to reporting under Sections 302, 304, 311, or 313
Workplace Designations: Handle as a hazardous chemical per OSHA HazCom Standard; provide training, labeling, and access to safety data
Other Regulations: May be regulated under local chemical safety or environmental rules; consult regulatory agencies for updated information.