Product Name: 1-Heptyl-3-Methylimidazolium Chloride
Chemical Formula: C11H21ClN2
Synonyms: [HMIm]Cl, Heptyl Methyl Imidazolium Chloride
CAS Number: 171058-17-6
Recommended Use: Laboratory reagent, solvent in syntheses, electrochemistry, ionic liquid research
Manufacturer: Chemical supplier contact details provided on packaging
Emergency Contact: Local poison control center or national emergency response number; specific contacts on packaging
GHS Classification: Skin corrosion/irritation (Category 2), Serious eye irritation (Category 2A), Acute toxicity—oral (Category 4), Environmental hazard—Aquatic Chronic (Category 3)
Signal Word: Warning
Hazard Statements: Causes skin irritation. Causes serious eye irritation. Harmful if swallowed. May cause long-lasting harmful effects to aquatic life.
Pictograms: Exclamation mark, Health hazard
Precautionary Statements: Avoid skin and eye contact, wash hands thoroughly after handling, avoid releasing into the environment, wear appropriate protective gear
Chemical Name: 1-Heptyl-3-Methylimidazolium Chloride
Common Name: [HMIm]Cl
Purity: ≥98%
Impurities: Trace water, possible minor organic byproducts
Additives: None reported
Molecular Weight: 217.76 g/mol
Inhalation: Move person to fresh air. Support breathing as needed. Seek medical attention for persistent symptoms.
Skin Contact: Remove contaminated clothing. Wash skin with plenty of soap and water. Seek medical care for ongoing irritation.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and seek medical attention.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek immediate medical help.
Note for Healthcare Providers: Treat based on symptoms and supportive care, no specific antidote reported.
Suitable Extinguishing Media: Water spray, dry chemical powder, carbon dioxide, alcohol-resistant foam
Unsuitable Media: Direct water jet, due to possible contamination spreading
Hazardous Combustion Products: Hydrogen chloride gas, nitrogen oxides, carbon oxides, imidazole derivatives
Special Protective Equipment: Firefighters use self-contained breathing apparatus, full protective suit
Firefighting Instructions: Prevent runoff from contaminating waterways, contain firewater if possible, approach fire from upwind to reduce inhalation risk
Personal Precautions: Avoid breathing vapors or dust, ensure adequate ventilation, wear chemical-resistant gloves, goggles, and lab coat
Environmental Precautions: Do not allow product to enter drains, surface water, or soil; report significant releases according to regulations
Containment Methods: Use inert absorbent material (sand, vermiculite), prevent liquid spread, collect spilled material in suitable chemically resistant container
Cleaning Methods: Clean area thoroughly with copious water after material removal; assess contamination risk to surfaces and waste stream
Disposal: Store collected waste safely, dispose per local hazardous waste guidelines
Safe Handling: Use in well-ventilated areas, avoid inhalation or skin/eye contact, wash thoroughly after handling, never eat, drink, or smoke while working with this substance
Technical Precautions: Use closed systems for transfers, ground all equipment to prevent static discharge if handling larger volumes
Storage Conditions: Keep container tightly closed in a dry, cool, well-ventilated area, away from strong oxidizing agents, acids, and moisture
Specific Issues: Protect from light and heat sources, use containers compatible with ionic liquids
Storage Incompatibilities: Do not store near food or drink, avoid storage with halogenated compounds and reactive chemicals
Workplace Exposure Limits: No specific occupational exposure limits established
Engineering Controls: Ensure fume hood or local exhaust ventilation in areas where material is handled
Personal Protective Equipment: Chemically resistant gloves (nitrile or similar), eye protection (goggles or face shield), lab coat or protective clothing, closed shoes
Respiratory Protection: Use respiratory protection if ventilation is insufficient or in spill situations
Hygiene Measures: Remove contaminated clothing before leaving work area, wash thoroughly with soap and water after handling
Appearance: Colorless to pale yellow solid or viscous liquid (depends on ambient temperature)
Odor: Slight odor, not well characterized
pH: Not applicable (neat), slightly acidic in solution
Melting Point: 52-58°C
Boiling Point: Decomposes before boiling
Flash Point: >120°C (closed cup approximation)
Solubility: Highly soluble in water, ethanol, methanol, DMF, DMSO
Vapor Pressure: Negligible at room temperature
Density: 1.05–1.10 g/cm³ (at 20-25°C)
Partition Coefficient (log Kow): Not available
Other Data: Hygroscopic, viscous at room temperature, stable when sealed from air and moisture
Chemical Stability: Stable under recommended storage conditions, sensitive to strong oxidizers, hydrolysis may occur in presence of water and acids
Reactivity: Reacts with strong oxidizing agents, acids, and some strong bases
Hazardous Decomposition: Hydrogen chloride, imidazole compounds, nitrogen oxides, carbon monoxide, and other unknown gases on combustion
Polymerization: No polymerization risk reported
Incompatibilities: Strong oxidizers, halogen donors, active metals, moisture may degrade material over time
Routes of Exposure: Ingestion, inhalation, dermal, ocular
Acute Toxicity: Harmful if swallowed; estimated oral LD50 (rat): >200 to 2000 mg/kg
Skin Corrosion/Irritation: Causes irritation, may cause redness, dryness, discomfort
Serious Eye Damage/Irritation: May cause severe eye irritation, redness, pain, blurred vision
Respiratory Sensitization: Dust or aerosols may irritate respiratory tract; persistent coughing or shortness of breath should be medically assessed
Chronic Effects: No long-term toxicity studies available; avoid repeated exposure until further data are available
Other Data: Not considered carcinogenic, mutagenic, or reprotoxic based on available data; use caution until additional studies are conducted
Ecotoxicity: Toxic to aquatic organisms in higher concentrations, may cause long-lasting harmful effects in the aquatic environment
Persistence and Degradability: Stable under natural conditions, slow degradation in the environment
Bioaccumulation Potential: Bioaccumulation not specifically studied but not expected to be significant
Mobility in Soil: High solubility in water, potential for transport in surface and groundwater
Other Adverse Effects: Avoid dispersal into the environment, further testing needed for full environmental impact assessment
Waste Disposal: Treat as hazardous waste; collect and label waste in compatible containers; follow local, regional, and national regulations for hazardous chemical disposal
Certified Disposal: Send to a licensed chemical waste disposal contractor; do not release unused material to drains, waterways, or general waste
Contaminated Packaging: Rinse thoroughly and dispose of packaging as hazardous waste
Other Recommendations: Keep waste secure from access by unauthorized personnel; document all hazardous waste shipments and handling
UN Number: Not classified for transport under most major regulations (ADR, IATA, IMDG), unless otherwise noted
Transport Hazard Class: Not regulated as dangerous for transport unless mixed with other hazardous materials
Packing Group: Not assigned
Proper Shipping Name: 1-Heptyl-3-Methylimidazolium Chloride, Ionic Liquid (for reference)
Environmental Hazards: Prevent leaking containers from entering water or soil, consult carrier and national regulations for large shipments
Transport Precautions: Ship in sealed containers, well labeled, with access to SDS
Regulatory Listings: Not specifically listed under most global chemical regulatory frameworks, but handle as a hazardous material due to toxicity profile
OSHA: Not listed on US OSHA hazardous chemicals but subject to General Duty Clause
EPA: Not on specific TSCA inventory, handle as research chemical
REACH: Not registered under EU REACH; laboratory or research use accepted with controls
SARA: Not classified under SARA Title III
Labeling Requirements: GHS-compliant labeling recommended including hazard pictograms, precautionary and hazard statements
Other Applicable Laws: Follow all applicable regional and national guidelines for chemical safety, environmental protection, employee protection, and chemical transportation
