Product Name: N-Hexyl Pyridinium Hexafluorophosphate
Chemical Formula: C11H18NPF6
Synonyms: 1-Hexylpyridinium hexafluorophosphate
CAS Number: 346324-37-8
Recommended Use: Intermediate in chemical synthesis, ionic liquid research, specialty applications in electrochemistry
Supplier/Manufacturer: Laboratory chemical supplier, multinational chemical distributors
Emergency Contact: Regional Poison Control Center, Local emergency response numbers, Safety personnel at site of use
GHS Classification: Irritant to eyes and skin, Potential reproductive hazard, May cause respiratory distress on inhalation.
Signal Word: Warning
Hazard Statements: Causes skin irritation, Causes serious eye irritation, Harmful if swallowed.
Pictograms: Exclamation mark, Health hazard
Precautionary Statements: Use proper protective equipment, Avoid inhalation of vapors, Wash exposed skin thoroughly after handling.
Route of Exposure: Inhalation, ingestion, skin contact, eye contact
Potential Health Effects: Irritation of the respiratory tract, chemical burns possible on skin and mucous membranes, gastrointestinal discomfort if ingested
Environmental Hazards: Possible aquatic toxicity, persistence in water environments
Chemical Identity: N-Hexyl Pyridinium Hexafluorophosphate
Common Name: 1-Hexylpyridinium hexafluorophosphate
Purity: More than 98%
Hazardous Components: Contains hexafluorophosphate anion, which produces toxic hydrogen fluoride upon decomposition.
Additives or Impurities: Unreacted pyridine derivatives (trace), solvent residues from manufacture (trace)
Concentration Range: 95%–100% active compound, trace residuals from synthesis
Inhalation: Remove the person to fresh air, keep at rest and monitor for any respiratory issues, administer artificial respiration if breathing stops, seek medical attention.
Skin Contact: Immediately wash the affected area with copious amounts of water and soap, remove contaminated clothing, do not use organic solvents, seek medical attention for burns or persistent irritation.
Eye Contact: Rinse the eyes cautiously with water for several minutes, remove contact lenses, continue rinsing, seek medical help for redness, burning, or visual disturbances.
Ingestion: Rinse mouth with water, do not induce vomiting, give small amounts of water if the victim is conscious, seek emergency medical help.
Most Important Symptoms: Irritation, redness, rash, difficulty breathing, gastrointestinal distress.
Follow-up Actions: Consult a toxicologist or poison control center for further advice, monitor for delayed symptoms.
Suitable Extinguishing Media: Dry chemical, carbon dioxide, alcohol-resistant foam, use water spray to cool containers.
Unsuitable Extinguishing Media: Direct water jet on product, as hexafluorophosphate may release toxic gases on contact with water.
Specific Hazards: Release of hydrogen fluoride, phosphorous oxides, carbon oxides, and nitrogen oxides at high temperatures.
Protective Equipment: Firefighters should wear full protective gear and self-contained breathing apparatus (SCBA).
Special Firefighting Procedures: Isolate hazard area, use water spray to keep containers cool, avoid run-off entering drains.
Decomposition Products: Hydrogen fluoride, phosphorous pentafluoride, toxic and corrosive fumes.
Personal Precautions: Use appropriate PPE, ventilate area, keep unprotected persons away, avoid breathing vapors.
Environmental Precautions: Prevent released product from entering soil, sewers, or water courses, contain spillage using inert absorbent material.
Methods for Clean-Up: Absorb with sand or vermiculite, collect and seal waste in clearly labeled containers, clean spill site with water and detergent.
Disposal of Contaminated Material: Dispose as hazardous waste via licensed contractor.
Emergency Procedures: Notify authorities and follow facility emergency protocols.
Handling: Wear suitable PPE, use only in well-ventilated areas, avoid generating dust, practice good hygiene by washing hands before eating or drinking.
Technical Measures: Use local exhaust ventilation, handle within a chemical fume hood.
Avoid: Contact with skin and eyes, inhalation of vapors or dust, ingestion through improper hygiene.
Storage: Keep in tightly sealed original containers, store in a cool, dry place, protect from moisture and incompatible substances.
Incompatible Materials: Strong acids, strong bases, moisture, strong oxidizing agents.
Special Packaging Requirements: Use corrosion-resistant containers, ensure secondary containment to prevent leaks.
Occupational Exposure Limits: No established national exposure limits, follow good industrial hygiene practices.
Engineering Controls: Use chemical fume hood, EMERGENCY EYE WASH and safety shower stations required.
Personal Protective Equipment: Safety goggles with side shields, chemical-resistant gloves (nitrile or neoprene), laboratory coat, closed footwear, if risk of inhalation exists use suitable respirator (organic vapor/acid gas cartridge).
Environmental Controls: Utilize spill containment trays, dedicated waste collection bins.
Monitoring: Regular area and personal monitoring for airborne particulate and fluoride levels if routine use is expected.
Appearance: Colorless to pale yellow liquid or solid at room temperature.
Odor: Mild, somewhat sweet or aromatic odor.
pH: Not applicable, non-aqueous.
Melting Point: Approximately 30–50°C (variable by purity).
Boiling Point: Decomposes before boiling.
Flash Point: Above 110°C (estimate, closed cup).
Evaporation Rate: Slow, non-volatile under ambient conditions.
Solubility in Water: Slightly soluble, hydrolyzes slowly in moist air.
Density: About 1.15–1.23 g/cm³ at 20°C.
Vapor Pressure: Negligible at 20°C.
Partition Coefficient (log Kow): Data not available.
Viscosity: Moderate (dependent on temperature and phase).
Decomposition Temperature: Above 180°C.
Molecular Weight: 323.23 g/mol.
Chemical Stability: Stable under recommended storage conditions, sensitive to strong acids/bases.
Possibility of Hazardous Reactions: Hydrolyzes in presence of water to form toxic gases.
Conditions to Avoid: Moisture, heat above decomposition temperature, exposure to light.
Incompatible Materials: Strong oxidizers, acids and bases, reactive metals and water.
Hazardous Decomposition Products: Hydrogen fluoride, ammonia, nitrogen/fluorine compounds, phosphorous oxides.
Polymerization: No data of hazardous polymerization under normal handling.
Acute Toxicity: Data limited, contact may cause eye, skin, and respiratory irritation.
Chronic Effects: Prolonged exposure could result in dermatitis, respiratory sensitization, or cumulative organ damage, according to related ionic liquids.
Skin Contact: Redness, dryness, cracking; possible burns with extended exposure.
Eye Contact: Irritation, tearing, blurred vision, chemical conjunctivitis.
Inhalation: Coughing, throat irritation, chest discomfort, potential headache.
Ingestion: Abdominal pain, nausea, vomiting, diarrhea, possible systemic toxicity.
Carcinogenicity: No classification by IARC, NTP, or OSHA.
Mutagenicity/Reproductive Toxicity: Insufficient data; best practice includes minimizing exposure.
Other Effects: Immediate and delayed symptoms possible; observe exposed individuals.
Ecotoxicity: Expected to be moderately toxic to aquatic organisms based on ionic liquid structure–activity relationships; may persist.
Persistence and Degradability: Poor biodegradability suspected; slow breakdown in soil or water.
Bioaccumulation Potential: Unlikely to bioaccumulate given ionic nature and water solubility.
Mobility in Soil: Moderate; ionic species might leach.
Aquatic Fate: Hydrolysis releases harmful fluorine-containing byproducts; risk to water bodies.
Other Adverse Effects: Monitor pH and fluoride ion concentration in affected habitats.
Waste Disposal Methods: Collect waste in labeled, sealed chemical containers, send to hazardous waste facility, avoid disposal into drains or environment.
Container Disposal: Rinse empty containers with compatible solvent, triple rinse, offer for chemical recycling or incineration under controlled conditions.
Precautions: Wear full PPE and ensure good ventilation when transferring waste.
Regulatory Considerations: Waste likely considered hazardous under many regional laws.
Reuse/Recovery: Contaminated product and materials unsuitable for reuse.
UN Number: To be determined based on product form and country of transport
UN Proper Shipping Name: Environmentally hazardous substance, liquid, n.o.s. (contains hexafluorophosphate salt)
Transport Hazard Class: Class 9 (Miscellaneous hazardous materials) based on composition and use
Packing Group: III (low to moderate hazard risk)
Marine Pollutant: Yes, harmful to aquatic life
Special Precautions for User: Use secondary containment, maintain MSDS copy with transport paperwork, notify carriers of hazards
Transport Labeling: Proper dot hazard markings, indication of toxic and environmental risks
Additional Information: Not regulated in small quantities within certain national boundaries; check local restrictions
Safety, Health and Environmental Regulations: Subject to chemical inventories in EU (REACH), USA (TSCA), Canada (DSL or NDSL), and others.
Hazardous Chemical Restrictions: On-site limits for quantity stored and handled to minimize risks.
Labelling Requirements: Compliance with GHS/OSHA, CLP, workplace labeling rules.
SARA 313/California Proposition 65: Not specifically listed; monitor updates for hexafluorophosphate-related listings.
Local Authority Requirements: Comply with municipal fire and environmental protection directives.
Industry Standards: Consistent with laboratory best practices for handling ionic liquids and specialty salts.
Record Keeping: Maintain inventory, usage, training, and incident records according to local laws and supplier recommendations.
