Product Name: 1,3-Diethylimidazolium Hexafluorophosphate
Chemical Formula: C7H13F6N2P
CAS Number: 223419-35-6
Synonyms: [DEIm][PF6], Diethylimidazolium Hexafluorophosphate
Recommended Uses: Electrolyte in electrochemistry, solvent in synthesis, ionic liquid for catalysis
Supplier: Industrial chemical suppliers and laboratory distributors
Emergency Contact: Refer to local regulations and supplier information
GHS Classification: Acute toxicity (Oral, Dermal, Inhalation) Category 4; Serious eye irritation Category 2A; Skin irritation Category 2
Signal Word: Warning
Hazard Statements: Harmful if swallowed; Causes skin and eye irritation; Contact can irritate respiratory tract
Precautionary Statements: Wear protective gloves and eye protection; Avoid breathing vapors, mists, or sprays; Wash thoroughly after handling
Pictograms: Exclamation mark
Chemical Identity: 1,3-Diethylimidazolium Hexafluorophosphate
Concentration: >98%
Impurities: Trace imidazole derivatives and moisture, which may cause additional hazards
Additives: None typically added in commercial or lab-grade forms
Skin Contact: Wash with water and mild soap for no less than 15 minutes; remove contaminated clothing; seek medical attention for persistent irritation
Eye Contact: Rinse with water for at least 15 minutes, keeping eyelids apart; see a physician immediately if pain or visual disturbances persist
Inhalation: Move to fresh air; keep at rest; if symptoms such as coughing or shortness of breath develop, contact medical services
Ingestion: Rinse mouth; do not induce vomiting; give water in small quantities if person is conscious; seek medical help without delay
Notes for Medical Providers: Symptomatic treatment; monitor for electrolyte disturbances and pulmonary irritation
Extinguishing Media: Use foam, dry powder, or CO2 fire extinguishers; avoid water jets due to possible hydrolysis
Special Hazards: Decomposition under heat forms toxic or irritating gases such as hydrogen fluoride, phosphorus oxides, and nitrogen oxides
Personal Protective Equipment: Use self-contained breathing apparatus and chemical protective clothing
Advice for Firefighters: Stay upwind; do not allow runoff from fire-fighting to reach water systems
Thermal Decomposition Products: Release of HF and POx at high temperatures poses acute risk
Personal Precautions: Evacuate area if spilled in large quantity; ventilate zone of accident; wear chemical-resistant gloves, goggles, and a laboratory coat
Environmental Precautions: Prevent spills from entering drains, surface and ground water
Methods for Clean-Up: Absorb with non-combustible material such as vermiculite or sand; transfer to collection container for proper disposal; wipe spill area with damp cloth
Emergency Procedures: Isolate hazard area; restrict access until cleanup finishes; follow up with decontamination of surfaces
Safe Handling: Work inside fume hood; avoid contact and inhalation; use tools instead of bare hands
Hygiene Practices: Wash hands before breaks and after handling; do not eat, drink, or smoke near product
Storage Conditions: Store in tightly closed containers in dry, cool, well-ventilated location; protect against moisture, open flame, and strong oxidizers
Specific Incompatibilities: Strong bases, strong oxidizing agents, and moisture
Engineering Controls: Tasks should take place in chemical fume hood with exhaust ventilation
Eye/Face Protection: Chemical safety goggles compliant with ANSI Z87.1
Skin Protection: Nitrile or neoprene gloves; long-sleeved lab coat or apron
Respiratory Protection: Wear appropriate NIOSH-certified vapor respirator if exposure limits might be exceeded
Workplace Monitoring: Check airborne concentrations periodically, especially with prolonged use
Exposure Limits: No occupational exposure limits established by OSHA or ACGIH; handle with care due to limited toxicity data
Appearance: Colorless to pale yellow liquid
Odor: Mild, non-distinct chemical odor
Melting Point: -28 °C
Boiling Point: Decomposes before boiling
Flash Point: >130 °C (closed cup)
Vapor Pressure: Negligible at 25 °C
Solubility: Slightly soluble in water; miscible with organic solvents such as acetone and acetonitrile
Density: 1.29–1.30 g/cm3 at 25 °C
pH: Not applicable (ionic liquid)
Partition Coefficient: Not established
Stability: Stable under recommended conditions; avoid strong heat and incompatible materials
Reactivity: Can hydrolyze under acidic or basic conditions, particularly in presence of water
Conditions to Avoid: High temperatures, moisture, strong oxidizing agents
Decomposition Products: Hydrofluoric acid, phosphorus oxides, and nitrogen oxides upon strong heating or reaction with moisture
Routes of Exposure: Inhalation, dermal and eye contact, ingestion
Acute Effects: Skin and eye irritation, respiratory tract irritation, gastrointestinal discomfort if swallowed
Chronic Effects: Repeated or prolonged exposure may increase risk of respiratory and skin sensitization
Toxicity Data: Limited specific data available; structurally related imidazolium salts have LD50 (oral, rat) of 300–2000 mg/kg
Other Risks: Hydrolysis products such as HF are extremely toxic and corrosive
Ecotoxicity: Not fully evaluated; ionic liquids may present risks to aquatic organisms due to persistence and toxic by-products
Persistence and Degradability: Stable in the environment but can degrade slowly to release toxic substances like PF6- and HF
Bioaccumulation Potential: Not well studied, but possible accumulation in aquatic food chains
Mobility in Soil: Ionic nature may enhance leaching potential in moist soil
Aquatic Toxicity: Related substances can inhibit microbial and aquatic life at high concentrations
Waste Treatment Methods: Contaminated materials and residues must be handled as hazardous waste
Disposal Containers: Use sealed, clearly labeled chemical waste drums
Uncleaned Packaging: Decontaminate containers with water before disposal; dispose as hazardous waste
Regulations: Disposal must comply with federal, state, and local environmental control regulations
Do Not: Discharge into sewage systems, waterways, or the environment
UN Number: Not officially classified under standard transport numbers
Proper Shipping Name: Not classified as dangerous goods under international transport regulations IF properly packaged
Transport Hazard Class: Not regulated as hazardous under IATA, IMO, or ADR for most cases
Packing Group: Usually not assigned
Special Precautions: Prevent release in transit by securing containers and using secondary containment; label according to local or national requirements
Labelling: Complies with Globally Harmonized System (GHS) labeling for laboratory and industrial agents
SARA Title III: Not listed as a reportable substance on the EPA’s SARA 302, 304, or 313 lists
Toxic Substances Control Act (TSCA): May not appear on the TSCA Inventory; usage often limited to research and industrial applications
REACH Regulation: Should only be handled by trained personnel under REACH compliance when supplied in European Union
Other Considerations: Always confirm with latest federal and regional legislation—regulations may shift as research on ionic liquids and their byproducts evolves
