Material Safety Data Sheet: N-Propyl-N-Methylpiperidinium Hexafluorophosphate

Identification

Product Name: N-Propyl-N-Methylpiperidinium Hexafluorophosphate
Chemical Formula: C9H20F6NP
Synonyms: N-Propyl-N-Methylpiperidinium PF6, Ionic Liquid, PMPI-PF6
Recommended Use: Laboratory chemicals, chemical synthesis, electrochemical applications
Manufacturer: High-purity chemical suppliers, contact details provided on packaging
Emergency Contact: Information provided on shipping label, local poison control, CHEMTREC

Hazard Identification

GHS Classification: Acute toxicity—oral: Category 4; Eye irritation: Category 2A; Skin irritation: Category 2
Label Elements: Pictograms (exclamation mark), Signal Word: Warning
Hazard Statements: Harmful if swallowed; causes skin and eye irritation
Precautionary Statements: Avoid breathing dust/fumes/gas/mist/vapors/spray; wash hands thoroughly after handling; wear protective gloves, safety glasses, and face protection

Composition / Information on Ingredients

Chemical Name: N-Propyl-N-Methylpiperidinium Hexafluorophosphate
CAS Number: 56213-18-8
Concentration: 98-100%
Impurities: Trace water and unreacted precursors, typically <1%

First Aid Measures

Inhalation: Move to fresh air, keep individual at rest in a position comfortable for breathing; seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water for at least 15 minutes; seek medical advice for irritation or allergic reaction
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do; continue rinsing, obtain medical attention if irritation persists
Ingestion: Rinse mouth with water; never give anything by mouth to an unconscious person; seek immediate medical advice, do not induce vomiting

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical powder, carbon dioxide, foam
Unsuitable Extinguishing Media: None specifically identified, avoid high-pressure water streams directly on burning liquid
Specific Hazards: During combustion, toxic and corrosive gases such as hydrogen fluoride, phosphorus oxides, and carbon oxides can form
Protective Equipment: Wear self-contained breathing apparatus and full protective gear
Firefighting Instructions: Approach fire from upwind side, keep unnecessary personnel away, use water spray to cool exposed containers

Accidental Release Measures

Personal Precautions: Use personal protective equipment including gloves, goggles, lab coat
Environmental Precautions: Prevent spillage from entering drains, watercourses, or soil; notify environmental authorities if large quantities enter the environment
Containment: Stop leak if safe to do so; absorb spillage with inert material (sand, vermiculite), collect in suitable containers for disposal
Cleanup Methods: Ventilate the area thoroughly, clean contaminated surfaces with soap and water, dispose of collected material as hazardous waste following local regulations

Handling and Storage

Safe Handling: Avoid contact with skin, eyes, and clothing; do not breathe dust, mist, or vapors; handle in a chemical fume hood or well-ventilated area
Storage Conditions: Store in tightly closed containers away from direct sunlight, moisture, and incompatible substances; keep at ambient temperature
Incompatible Materials: Strong bases/acids, oxidizing agents, materials containing water; avoid contact with metals that may react with released acids
Hygiene Measures: Practice good industrial hygiene, wash hands before eating/drinking, do not eat, drink or smoke when using the substance

Exposure Controls and Personal Protection

Engineering Controls: Chemical fume hood, local exhaust ventilation, safety shower, and eye wash station in work area
Personal Protective Equipment: Nitrile gloves, chemical splash goggles, lab coat or chemical-resistant apron
Respiratory Protection: Air-purifying respirator with organic vapor/acid gas cartridge if ventilation is inadequate
Exposure Limits: No occupational exposure limits established by OSHA, ACGIH, or NIOSH; minimize exposure by administrative and engineering controls

Physical and Chemical Properties

Appearance: Colorless to pale yellow liquid
Odor: Slight, musty
Melting Point: -60°C to -40°C
Boiling Point: Decomposes above 200°C
Flash Point: > 100°C (closed cup, estimated)
Solubility: Slightly soluble in water, soluble in common organic solvents
Density: 1.25–1.35 g/cm3
Vapor Pressure: Low, not readily volatile at room temperature
pH: Neutral to slightly acidic (aqueous solution)
Viscosity: High, varies with temperature
Partition Coefficient: Not available

Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Reactivity: Reacts with strong oxidizers and bases, can hydrolyze slowly in presence of water
Possible Hazardous Reactions: Decomposition produces hazardous gases including hydrogen fluoride and phosphorus oxides
Conditions to Avoid: Heat, direct sunlight, moisture, contact with incompatible materials

Toxicological Information

Routes of Exposure: Skin, eyes, inhalation, ingestion
Acute Toxicity: Oral LD50 (rat): Estimated 300–2000 mg/kg; inhalation and dermal toxicity data not available
Symptoms: Skin and eye irritation, cough, sore throat, abdominal pain, nausea on ingestion
Chronic Effects: Prolonged exposure may irritate respiratory system and skin, no long-term carcinogenicity, mutagenicity, or reproductive toxicity data available
Sensitization: Not reported, but handle with caution as ionic liquids often cause mild to moderate irritation

Ecological Information

Ecotoxicity: Harmful to aquatic life with long lasting effects based on structural similarity to other quaternary ammonium salts
Persistence and Degradability: Not rapidly biodegradable, can remain in environment for extended periods
Bioaccumulative Potential: No strong evidence of significant bioaccumulation, but limited data available
Mobility in Soil: Moderately mobile, but high ionic strength tends to reduce leaching
Other Hazards: Avoid release to the environment, inform relevant authorities in case of accidental waterway contamination

Disposal Considerations

Waste Treatment Methods: Dispose of as hazardous chemical waste in accordance with local regulations; approved chemical incineration facilities recommended
Contaminated Packaging: Rinse thoroughly, dispose of as hazardous waste
Environmental Impact: Prevent entry into waterways, sewers, soil; follow regional and national legislation on chemical disposal
Reuse/Recycle: Not recommended due to contamination risk, prioritize safety during disposal

Transport Information

UN Number: Not classified as dangerous goods for transport under UN regulations
Transport Hazard Class: Not regulated
Packing Group: Not assigned
Labeling Requirements: Use “Chemical—Handle with Care” labels as per facility standard
Special Precautions: Keep container tightly closed, temperature controlled transport not mandatory but preferable for long distance
Transport Documentation: Include safety data sheet and emergency contact details with shipment

Regulatory Information

TSCA Inventory: Not listed individually, check supplier for current status
REACH Status: Not registered individually within EU, obtain confirmation on specific uses
OSHA Hazards: Harmful by ingestion, skin and eye irritant
Right-to-Know Lists: Not present on California Proposition 65, Massachusetts, New Jersey, or Pennsylvania lists
Other Regulations: Ensure compliance with workplace safety rules, hazardous chemical labeling, and chemical hygiene plans as applicable to local and national law