MSDS: 4-Methyl-N-Butylpyridinium Hexafluorophosphate

Identification

Product Name: 4-Methyl-N-Butylpyridinium Hexafluorophosphate
Chemical Formula: C10H16NPF6
Synonyms: 1-Butyl-4-methylpyridinium hexafluorophosphate
CAS Number: 244615-64-1
Recommended Use: Laboratory reagent, electrochemical applications, research and development
Manufacturer Contact: Emergency phone and supplier information must be current, including address and technical phone number
Emergency Contact Number: Chemtrec International Service available for 24-hour chemical emergencies

Hazard Identification

GHS Classification: Acute Toxicity Oral Category 4, Skin Irritation Category 2, Serious Eye Irritation Category 2A
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation
Pictograms: Exclamation mark symbol
Precautionary Statements: Avoid breathing dust or vapors, wash thoroughly after handling, do not eat or drink during handling, wear protective gloves and eye protection, if in eyes rinse cautiously with water, if skin irritation occurs seek medical advice, if ingested call a poison center
Potential Hazards: Can harm if inhaled or ingested, irritates respiratory tract, may aggravate existing skin problems, may affect eyes and mucous membranes

Composition / Information on Ingredients

Chemical Name: 4-Methyl-N-Butylpyridinium Hexafluorophosphate
Common Name: Ionic liquid
Concentration: Over 95%
Impurities: Trace organic side products less than 2%
Molecular Weight: 289.22 g/mol

First Aid Measures

Inhalation: Move to fresh air immediately, support breathing if needed, seek medical attention for persistent symptoms like coughing or chest tightness
Skin Contact: Remove contaminated clothing, flush skin with plenty of water and mild soap for at least 15 minutes, seek medical help for redness or discomfort
Eye Contact: Rinse eyes gently with running water for at least 15 minutes, keep eyelids open, remove contact lenses, consult physician for pain or blurred vision
Ingestion: Rinse mouth with water but do not induce vomiting, seek immediate medical advice, show the label or MSDS to emergency responders
Most Important Symptoms: Irritation, redness, pain, difficulty breathing, upset stomach

Fire-Fighting Measures

Suitable Extinguishing Media: Use dry chemical powder, CO2, foam, or water spray
Unsuitable Media: Avoid water jet due to possible spread of contamination
Fire Hazards: Decomposition produces toxic and corrosive fumes such as phosphorus oxides, hydrogen fluoride, and nitrogen oxides
Protective Equipment: Full protective gear and self-contained breathing apparatus for fire fighters
Specific Hazards: Thermal stress may cause rupture of containers, gases can cause respiratory irritation and chemical burns

Accidental Release Measures

Personal Precautions: Wear chemical-resistant gloves, goggles, and laboratory coat, avoid inhalation and direct contact, evacuate area if necessary for large spills
Environmental Precautions: Prevent chemical from entering sewers, watercourses, or soil, alert authorities in case of environmental contamination
Methods for Cleaning Up: Absorb spill with inert material like sand or vermiculite, gather in closed container for disposal, ventilate area well
Decontamination Steps: Wash area with detergent and water, collect washings for disposal, inspect for residual contamination

Handling and Storage

Precautions for Safe Handling: Work with adequate ventilation, avoid skin and eye contact, never eat, drink, or smoke in work area, keep away from incompatible substances
Storage Conditions: Store in original, tightly closed container, keep in a cool, dry, well-ventilated place, avoid direct sunlight, segregate from oxidizing agents, acids, and bases
Containers: Use only authorized containers with labels, inspect regularly for leaks
Other Notes: Rotate stock, avoid freezing and high temperature cycles, ensure secondary containment

Exposure Controls and Personal Protection

Engineering Controls: Use chemical fume hood for open transfers and manipulations, ensure eye wash and safety shower available
Personal Protective Equipment: Nitrile or neoprene gloves, chemical splash goggles, laboratory coat, in high exposure cases use face shield and full body covering
Respiratory Protection: NIOSH-certified respirator if airborne concentrations exceed safe limits or if ventilation insufficient
Hygiene Practices: Wash hands thoroughly after handling, do not touch eyes or mouth, change contaminated clothing promptly

Physical and Chemical Properties

Appearance: Clear to pale yellow liquid
Odor: Mild, slightly amine-like
Odor Threshold: Not established
pH: Not applicable (non-aqueous liquid)
Melting Point: -13°C
Boiling Point: Decomposes above 270°C
Flash Point: Above 140°C
Evaporation Rate: Not volatile under normal conditions
Flammability: Not classified as a flammable liquid
Vapor Pressure: Less than 0.01 mm Hg at 25°C
Solubility: Miscible with organic solvents such as acetonitrile, poorly soluble in water
Density: 1.22 g/cm³ at 20°C
Viscosity: High, approximately 210 cP at 25°C
Partition Coefficient: No data available
Decomposition Temperature: Above 270°C

Stability and Reactivity

Chemical Stability: Stable under normal storage and handling conditions
Reactivity: Avoid contact with strong oxidizers, strong acids, or bases, may react and produce hazardous decomposition gases
Hazardous Decomposition Products: Hydrogen fluoride, phosphorus oxides, nitrogen oxides, fluoroalkanes
Polymerization: Product does not undergo hazardous polymerization
Other Remarks: Avoid moisture ingress which may cause hydrolysis and release of acidic byproducts

Toxicological Information

Acute Toxicity: Harmful if swallowed, LD50 (oral, rat) estimated between 300-2000 mg/kg
Skin Corrosion/Irritation: Causes local irritation, repeated or prolonged exposure may lead to dermatitis
Serious Eye Damage/Irritation: Risk of serious eye irritation with potential for redness and pain
Respiratory or Skin Sensitization: No data indicating sensitization effects
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Reproductive Toxicity: No specific studies available; as a precaution, minimize exposure for pregnant individuals
Other Effects: No chronic toxicity data, long-term health effects not well studied, exposure may aggravate pre-existing allergies or skin problems

Ecological Information

Aquatic Toxicity: Information on aquatic organisms is limited; based on structure, may pose chronic hazard to aquatic life with possible bioaccumulation
Mobility in Soil: Limited mobility due to high viscosity and low vapor pressure; binds to organic matter
Persistence and Degradability: Not readily biodegradable in standard OECD tests
Bioaccumulative Potential: Moderate due to ionic nature, possible accumulation in aquatic organisms
Other Effects: Avoid uncontrolled release, chemical can disrupt wastewater microbial systems

Disposal Considerations

Waste Treatment Methods: Consider incineration by licensed chemical waste disposal contractor, follow local, state, and national environmental regulations
Waste Code: Must assess according to local listings
Contaminated Packaging: Empty containers must be triple rinsed, then disposed as hazardous chemical waste
Precautions: Do not release to environment or sewer, avoid formation of dust or aerosol, label all waste containers properly
Other Recommendations: Check with national and local agencies for additional disposal guidance

Transport Information

UN Number: Not assigned for this material
Shipping Name: Not classified as dangerous goods under USDOT, IMDG, or IATA guidelines
Hazard Class: None assigned
Packing Group: Not applicable
Marine Pollutant: Not specifically listed but avoid release to waterways
Special Precautions: Secure packaging, protect from damage, document chemical in transport log

Regulatory Information

OSHA Status: Not specifically regulated by OSHA standard
TSCA: Check inventory status for commercial use
SARA Title III: Not listed under Sections 302, 304, or 313
California Proposition 65: Compound not listed
REACH/CLP (Europe): Considered a substance of concern; check current registration and safety requirements for use in EU
Other Regulations: Consult local and national chemical safety rules for restrictions, training, and reporting obligations for laboratory and industrial use