Product Name: 2-Hydroxy-N,N,N-Trimethylethanaminium Hexafluorophosphate
Chemical Formula: C5H14F6NOP
CAS Number: 1011329-73-7
Synonyms: Choline hexafluorophosphate
Recommended Use: Laboratory chemicals, research and development
Supplier Information: Manufacturer’s name and address on purchase documents
Emergency Phone Number: Provided by manufacturer
Classification: Acute toxicity (oral, dermal, inhalation), Skin irritation, Serious eye damage
Hazard Statements: Toxic if swallowed, contact causes skin and eye irritation, exposure can cause respiratory tract irritation
Pictograms: Skull and crossbones, exclamation mark
Signal Word: Danger
Precautionary Statements: Wear gloves, protect eyes, avoid breathing dust or fumes, wash skin thoroughly after handling, seek medical attention if feeling unwell or experiencing contact symptoms
Chemical Name: 2-Hydroxy-N,N,N-Trimethylethanaminium Hexafluorophosphate
Concentration: ≥98%
Impurities: Residual acids <1%, water traces
Hazardous Components: Hexafluorophosphate ion, ammonium derivative
Inhalation: Move affected person to fresh air, provide oxygen if breathing is difficult, seek immediate medical attention
Skin Contact: Remove contaminated clothing, flush skin with plenty of water and soap, get medical help if irritation persists
Eye Contact: Rinse opened eyes under running water for at least 15 minutes, remove contact lenses if present and safe to do so, consult an eye specialist
Ingestion: Rinse mouth, never give anything by mouth to an unconscious person, call poison control center or doctor at once
Extinguishing Media: CO2, dry chemical powder, alcohol-resistant foam
Unacceptable Media: Strong water jets
Fire Hazards: Produces toxic fumes including HF, PF5, phosphorus oxides during combustion
Protective Equipment: Use self-contained breathing apparatus (SCBA), wear full fire-fighting gear including gloves, boots, and chemical-resistant suit
Special Procedures: Move containers from fire area if possible without risk, cool containers with flooding quantities of water until well after fire is out
Personal Precautions: Wear respiratory protection, gloves, tight-fitting goggles, prevent dust formation
Environmental Precautions: Prevent further leakage or spillage if safe, do not allow product to enter drains or watercourses
Cleanup Methods: Sweep up and place in a suitable container, avoid dust generation, keep waste in closed containers for disposal, ventilate spillage area, decontaminate surfaces with sodium carbonate solution
Precautions for Safe Handling: Handle in a chemical fume hood, avoid contact with skin, eyes, and clothing, minimize dust creation, keep out of reach of untrained individuals
Conditions for Safe Storage: Store in tightly closed containers, keep in a dry, cool and well-ventilated place, separate from acids, bases, and reducing agents, protect from moisture and light
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits
Personal Protection: Chemical-resistant gloves, long-sleeved lab coat, safety goggles, NIOSH-approved respirator when necessary
Hygiene Measures: Wash hands and face before eating, drinking, or smoking, remove contaminated clothing, clean PPE after use, showers and eyewash stations in work area recommended
Appearance: White to off-white crystalline powder
Odor: Odorless or slight amine-like smell
pH: Weakly acidic to neutral (1% aqueous solution)
Melting Point: 220–225 °C (decomposes)
Boiling Point: Decomposes before boiling
Solubility: Easily dissolves in water, slightly soluble in alcohols
Vapor Pressure: Not applicable (non-volatile)
Density: 1.47 g/cm³
Partition Coefficient: No data available
Stability under normal conditions: Stable if handled and stored as recommended
Chemical Stability: Stable under recommended handling and storage conditions
Reactivity: Reacts with strong acids, bases, oxidizers; moisture-sensitive
Hazardous Decomposition Products: Hydrofluoric acid, phosphorus oxides, trimethylamine fumes
Polymerization: Does not undergo hazardous polymerization
Incompatible Materials: Strong acids, strong bases, water, reducing agents
Routes of Exposure: Ingestion, skin contact, inhalation, eye contact
Acute Effects: Nausea, vomiting, abdominal pain if swallowed; irritation, redness, dermatitis from skin exposure; corrosive to mucous membranes in eyes and respiratory tract
Chronic Effects: Possible liver and kidney effects with repeated exposure, sensitization of skin possible
Toxicological Data: Oral LD50 (rat) not established – considered toxic, dermal studies incomplete, may release HF which poses significant risk
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, OSHA
Mutagenicity and Teratogenicity: No adequate studies found
Aquatic Toxicity: Harmful to aquatic life, toxic to fish and invertebrates based on structural analogs
Persistence and Degradability: Not readily biodegradable, persistent in soil and water
Potential Bioaccumulation: Bioaccumulation potential not fully studied, hexafluorophosphate ion may persist in environment
Other Hazards: Component breakdown products such as fluoride ions may be environmentally hazardous
Waste Treatment Methods: Dispose via licensed chemical disposal contractor, do not pour down drains, incinerate under controlled conditions
Contaminated Packaging: Dispose as hazardous waste, rinse containers well before discarding, do not reuse packaging
Special Precautions: Handle waste in accordance with local, regional, and national regulations, neutralize residues with calcium carbonate/lime as needed
UN Number: UN 3261 (Corrosive solid, acidic, organic, n.o.s.)
UN Proper Shipping Name: Corrosive solid, acidic, organic, n.o.s. (contains hexafluorophosphate compound)
Transport Hazard Class: Class 8 (Corrosive substances)
Packing Group: II
Marine Pollutant: Yes
Special Transport Precautions: Package for transport to prevent leaks, follow local and international transport regulations, emergency response guide available from DOT or IATA
OSHA Status: Considered hazardous by OSHA Hazard Communication Standard
TSCA Status: Not listed on the United States TSCA inventory
DSL/NDSL (Canada): Not listed
EINECS/ELINCS (EU): Not listed
SARA Title III: Not classified under sections 302, 304, 313
California Proposition 65: No components listed
Other Regulation Notes: Compliance with chemical safety standards in workplace, environmental release notification requirements if spilled in significant quantity, maintain documentation for regulatory inspection
