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Chemical Name: 1-Methyl-3-Ethylimidazolium Hexafluorophosphate
Chemical Formula: C6H11F6N2P
Common Names: [Emim][PF6], Ionic Liquid
Form: Usually presents as a colorless to pale yellow liquid
General Uses: Used in research for green chemistry, batteries, and as a solvent in extraction processes
Main Hazards: Corrosive to skin and eyes, harmful if swallowed, can irritate respiratory tract, suspected of releasing toxic fumes when heated
Signal Word: Danger
GHS Pictograms: Corrosive, Health Hazard, Environmental Hazard
Acute Effects: Exposure can burn tissue, produce persistent coughing, and cause eye redness or watering
Chronic Effects: Ongoing contact may contribute to long-term tissue irritation
Component 1: 1-Methyl-3-Ethylimidazolium cation—provides the ionic nature
Component 2: Hexafluorophosphate anion—responsible for fluorine presence
Percentage Composition: Pure formulations, with minimal impurities if handled in controlled labs
Notable Impurities: Trace levels of water or unreacted starting materials may appear if handled without strict dry conditions
Skin Contact: Immediately wash skin with plenty of running water, remove contaminated clothing, keep rinsing for several minutes
Eye Contact: Avoid rubbing, rinse with water for at least 15 minutes, seek medical help for persistent pain or vision changes
Inhalation: Move to fresh air, allow shallow breathing to calm breathing, get help if coughing or throat discomfort does not resolve
Ingestion: Do not induce vomiting, rinse mouth with water if conscious, call for professional evaluation as swallowing may burn mucous membranes
Suitable Extinguishing Media: Dry chemical, CO2, or alcohol-resistant foam can suppress flames
Unsuitable Media: Water streams may cause splattering
Special Hazards: Decomposition can release toxic hydrogen fluoride and phosphorus oxides
Protective Equipment: Firefighters should use self-contained breathing apparatus and chemical-resistant gear
Advice for Responders: Avoid inhaling fumes, evacuate area, ventilate spill zones
Personal Precautions: Don chemical-resistant gloves, splash goggles, and respiratory protection to avoid exposure
Environmental Precautions: Prevent entry into drains or waterways to reduce contamination risks
Methods for Cleaning Up: Absorb with inert material like dry sand, sweep, then collect in closed containers for disposal
Dilution: Avoid using water as primary diluent, since water contact can increase splatter and spread contaminants
Safe Handling: Work in fume hood, keep the container sealed, and avoid direct skin or eye contact at all steps
Storage Requirements: Place container in a cool, dry, well-ventilated area free from sunlight, moisture, and incompatible substances
Incompatible Materials: Strong acids, alkalis, oxidizing agents, and sources of moisture may cause hazardous reactions
Hygiene Practices: Wash hands thoroughly after handling, avoid eating or drinking in areas where substance is stored
Engineering Controls: Use local exhaust ventilation, chemical fume hoods to reduce airborne particles
Personal Protective Equipment: Gloves resistant to chemicals, splash goggles, lab coats, and in some cases, face shields
Respiratory Protection: NIOSH-approved respirators if airborne concentrations become noticeable or spills occur
Safety Showers/Eyewash Stations: Accessible in all labs using this ionic liquid
Appearance: Usually clear or slightly yellowish liquid
Odor: Mild or negligible
Boiling Point: Decomposes before boiling above 200°C
Melting Point: Often below room temperature (varies by purity)
Solubility: Poorly soluble in water, miscible with select organic solvents
Vapor Pressure: Low volatility under normal conditions
Partition Coefficient: Limited data, but shows affinity for nonpolar and slightly polar solvents
Viscosity: Notable for high viscosity compared to traditional solvents
Chemical Stability: Stable under proper storage; exposure to moisture, acids, or bases can cause rapid decomposition
Hazardous Decomposition: Heating may produce toxic fluoride and phosphorus oxides
Incompatible Materials: Contact with strong oxidizers or water raises potential for hazardous breakdown
Polymerization: Unlikely in typical lab settings under controlled conditions
Routes of Exposure: Inhalation, dermal, and ingestion pose risk of chemical burns and systemic toxicity
Immediate Symptoms: Irritation, burning sensation, redness
Long-Term Effects: Continuous unprotected exposure may aggravate existing respiratory or skin conditions
Toxicity Data: Documented as causing moderate, dose-dependent cellular toxicity in research studies
Carcinogenicity: No classification by major cancer agencies based on available evidence
Aquatic Toxicity: Ionic liquids like [Emim][PF6] have been shown to harm aquatic life under chronic exposure
Persistence: Can persist in the environment, raising risks of bioaccumulation if discharged untreated
Mobility in Soil: Tends to remain in top layers due to low solubility in water
Degradability: Slowly breaks down in natural systems; incomplete degradation can release hazardous byproducts
Disposal Method: Considered hazardous chemical waste; collect in clearly labeled containers, pass to licensed waste management services
Avoid: Direct discharge into sewers, surface water, or regular trash
Rinsing: Do not rinse glassware into sinks; collect washings for safe disposal
Regulatory Concerns: Consult local and national laws before disposal to prevent environmental pollution
UN Classification: Sometimes handled as dangerous goods due to corrosive nature
Packaging: Use leak-proof, chemically resistant containers, secondary containment recommended during transport
Transport Hazards: Avoid temperature extremes and vibration
Spill Response in Transit: Use inert absorbents and full protective gear should leaks occur
Workplace Limits: No established occupational exposure limits from OSHA or ACGIH
Environmental Regulation: Disposal, emissions, and spill response governed by hazardous waste frameworks in many jurisdictions
Labeling Requirement: Clearly mark all containers, keep safety data available for lab or workplace users
Reach/TSCA Status: Check for inclusion and registration under chemical safety inventories depending on locality
