Product Name: N-Butylpyridinium Dihydrophosphate
Synonyms: 1-Butylpyridinium dihydrogen phosphate; N-Butyl-1-pyridinium dihydrogen phosphate
Chemical Formula: C9H16NO4P
CAS Number: 63378-13-2
Uses: Laboratory chemicals, research purposes, ionic liquids
Manufacturer Info: Supplier name and emergency phone number must be kept accessible where this product is stored and used
Emergency Contacts: Local emergency services and poison control
GHS Classification: Skin Irritation (Category 2), Eye Irritation (Category 2A), Specific Target Organ Toxicity – Single Exposure (Category 3)
Pictograms: Exclamation mark
Signal Word: Warning
Hazard Statements: Causes skin and serious eye irritation, may cause respiratory irritation
Precautionary Statements: Avoid contact with skin and eyes, use only in a well-ventilated place, wash thoroughly after handling, avoid breathing vapors and dust
Chemical Name: N-Butylpyridinium dihydrophosphate
CAS Number: 63378-13-2
EC Number: Not assigned
Concentration: 97-100%
Impurities: No hazardous impurities relevant for classification
Inhalation: Move affected person to fresh air, support breathing, seek medical advice if symptoms persist such as coughing or shortness of breath
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water, wash with soap, consult medical attention if irritation continues
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, continue rinsing, seek immediate medical advice
Ingestion: Rinse mouth, do not induce vomiting, seek medical attention immediately, never give anything by mouth to an unconscious person
Most Important Symptoms: Redness, irritation, burning sensation, headache, dizziness
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical powder, carbon dioxide
Unsuitable Media: Direct solid water jet can spread fire
Specific Hazards: Product may release corrosive or toxic fumes including phosphorus oxides and nitrogen oxides in a fire
Protective Equipment: Self-contained breathing apparatus and full protective clothing
Firefighting Advice: Approach fire from upwind to avoid hazardous vapors, remove sources of ignition, avoid runoff into drains
Personal Precautions: Ventilate area, avoid breathing vapors, use personal protective equipment including gloves and goggles
Environmental Precautions: Prevent further leakage or spillage if safe to do so, avoid release into drains or surface water
Cleanup Methods: Absorb spillage with inert absorbent such as sand, collect in a tightly closed container for disposal, wash residue with plenty of water, ventilate area
Handling: Use in well-ventilated locations, wear suitable chemical-resistant gloves and eye/face protection, avoid contact with skin, eyes, and clothing, prevent ingestion, wash hands thoroughly after handling
Storage: Store in a cool, dry, well-ventilated area, keep container tightly closed, segregate from incompatible materials including oxidizing agents, acids, and bases, avoid exposure to moisture and direct sunlight, label storage containers clearly
Occupational Exposure Limits: No established exposure limit, handle in line with good chemical hygiene practices
Engineering Controls: Use with local exhaust ventilation to minimize exposure, provide eyewash stations and safety showers
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), tightly fitting safety goggles, protective clothing such as lab coats, NIOSH-approved respirator under conditions of insufficient ventilation
Hygiene Measures: Keep work clothing separate, remove contaminated clothing promptly, wash hands and face after handling
Appearance: Colorless to pale yellow liquid
Odor: Mild, characteristic
Melting Point/Freezing Point: -35°C (approximate)
Boiling Point: Decomposes before boiling
Flash Point: Above 100°C
Solubility: Soluble in water and many organic solvents (methanol, ethanol, acetone)
pH: 2-3 (aqueous solution)
Vapor Pressure: Very low at room temperature
Relative Density: 1.20–1.24 g/cm³
Viscosity: High compared to water
Chemical Stability: Stable under recommended storage and handling conditions
Thermal Decomposition: High temperatures produce phosphorus oxides, nitrogen oxides, carbon oxides
Incompatible Materials: Strong oxidizers, strong acids, strong bases
Reactivity: Not considered reactive under normal environmental conditions
Hazardous Reactions: No dangerous reactions known under normal uses
Routes of Exposure: Inhalation, ingestion, skin contact, eye contact
Acute Toxicity: Data on acute toxicity is limited; may cause mild to moderate irritation on skin and eyes, possible discomfort if swallowed or inhaled
Chronic Effects: No known chronic toxicity with prolonged low-level exposure, repeated skin contact can lead to dermatitis
Other Effects: Data not fully available; structure suggests similar effects to related pyridinium salts
Carcinogenicity: Not classified as carcinogenic by IARC, ACGIH, NTP, or OSHA
Sensitization: No data on sensitizing potential
Ecotoxicity: Not thoroughly investigated; ionic nature suggests possible toxicity to aquatic organisms
Persistence and Degradability: May persist in the environment due to low volatility and slow degradation
Bioaccumulation Potential: No data on bioconcentration; ionic liquids usually have low bioaccumulation, but bioaccumulation cannot be excluded
Mobility in Soil: Soluble in water, may migrate in soil and groundwater
Additional Notes: Avoid release into environment, harmful to aquatic life based on related compounds
Waste Treatment Methods: Dispose of contents in accordance with local, regional, and national regulations, do not discharge into drains or environment
Container Disposal: Rinse empty containers, dispose by controlled waste disposal systems
Special Considerations: Incinerate in chemical incinerator equipped with afterburner and scrubber where permitted, consult licensed disposal company
UN Number: Not regulated as hazardous for transport (check latest updates before shipping)
UN Proper Shipping Name: Not applicable
Transport Hazard Class: Not regulated under ADR, IMDG, ICAO/IATA
Packing Group: Not assigned, usually shipped as non-dangerous goods
Special Precautions: Keep away from heat, store upright, label clearly
TSCA (US): Not listed; research or R&D use only
REACH (EU): Not pre-registered; subject to restrictions in Europe for use outside treatment and research
OSHA Hazards: Irritant
SARA Title III: Not listed under Sections 302, 304, 313
DSL/NDSL (Canada): Not listed
WHMIS Classification: Regulated as a hazardous material in Canada due to irritant properties
Other Regulations: Inventory status and labeling requirements depend on latest updates from local authorities, users must ensure compliance with applicable regulations before handling
