Product Name: N-Butylimidazolium Dihydrogen Phosphate
Chemical Family: Ionic Liquid, Imidazolium Salt
Synonyms: 1-Butyl-3-methylimidazolium Dihydrogen Phosphate, BMIM DHP
CAS Number: 63647-95-8
Recommended Use: Solvent, Catalysis, Electrolyte, Lubricant, Green Chemistry Applications
Manufacturer/Supplier: Refer to regional supplier details
Emergency Phone: Refer to local regulations and safety personnel contacts
Contact Information: Available through organizational health and safety database
GHS Classification: Eye Irritant (Category 2A), Skin Sensitizer (Category 1), Acute Toxicity (Oral, Category 4), Aquatic Chronic Hazard (Category 3)
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes serious eye irritation, may cause skin sensitization, may cause moderate irritation to respiratory tract, may cause long-term adverse effects in the aquatic environment
Pictograms: Exclamation Mark, Health Hazard, Environmental Hazard
Precautionary Statements: Avoid eye or skin contact, do not ingest, use gloves and goggles, work in a ventilated area, avoid release into water sources
Other Hazards: May react with strong oxidizing agents or acids to release toxic gases
Chemical Name: N-Butylimidazolium Dihydrogen Phosphate
Concentration: ≥98%
CAS Number: 63647-95-8
Impurities/Additives: May contain less than 2% water or non-ionic organic impurities based on source
Molecular Formula: C7H15N2O4P
Molecular Weight: 222.18 g/mol
Inhalation: Remove to fresh air immediately, seek medical attention for persistent cough or difficulty breathing
Skin Contact: Wash area thoroughly with soap and water, remove contaminated clothing, seek medical advice if irritation or rash develops
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and easy to do, get medical help if irritation persists
Ingestion: Rinse mouth with water, do not induce vomiting, get immediate medical attention, provide product relevance to health professionals
Other Notes: If exposed and feeling unwell, get medical advice, show MSDS to physician
Extinguishing Media: Use water spray, foam, dry chemical or carbon dioxide, avoid direct stream on burning product
Unusual Hazards: Material may decompose under intense heat, producing toxic fumes including nitrogen oxides, phosphorus oxides, and carbon monoxide
Protective Equipment: Firefighters need self-contained breathing apparatus and protective gear, minimize contact with contaminated runoff
Fire Combustion Products: Potential formation of corrosive phosphoric acid vapors, imidazole decomposition products
Advice for Firefighters: Approach from upwind, use extreme caution, evacuate area and cool containers if exposed to fire
Spill Response: Evacuate unprotected personnel, isolate area, prevent entry to sewers, waterways or soil
Containment: Absorb spillage using sand, earth or inert absorbent, collect residue in tightly closed containers for safe disposal
Cleanup Procedures: Ventilate affected area, wash residual stain with water and mild detergent, avoid splashing
Personal Protection: Use gloves, goggles, and respirator if ventilation is insufficient, avoid skin or eye exposure
Environmental Precautions: Prevent further leakage or spillage where safe to do so, inform environmental agencies as required by local law
Small Spills: Wipe up with absorbent paper then scrub area, deposit paper and contaminated waste in chemical waste bin
Handling: Use only in areas with local exhaust, avoid direct contact with liquid and vapor, never eat, drink, or use tobacco while handling chemicals
Storage Conditions: Store in well-ventilated, cool, dry place away from direct sunlight, ignition sources or incompatible substances
Container Requirements: Keep tightly sealed in original packaging or compatible chemical-resistant containers
Incompatible Materials: Avoid storage near strong acids, bases, or oxidizers, do not mix with foodstuffs or feed
Hygiene Practices: Wash hands thoroughly after handling, remove contaminated clothing before entering eating areas
Engineering Controls: Use mechanical ventilation, fume hoods, or process enclosures to minimize vapor exposure
Occupational Exposure Limits: No established regulatory limits, use best industrial hygiene practices to minimize exposure
Personal Respirators: Respiratory protection required for high vapor concentrations, follow local guidelines
Gloves: Wear chemical resistant gloves such as nitrile or neoprene
Eye/Face Protection: Use safety goggles or safety glasses with side shields
Body Protection: Wear protective lab coat or suit, use chemical-resistant footwear for large spills
Workplace Practices: Ensure all safety showers and eyewash stations are accessible, institute regular workplace air monitoring as needed
Appearance: Colorless to pale yellow viscous liquid
Odor: Mild, not strongly discernible
Odor Threshold: Not determined
pH: 2–3 as supplied
Melting Point/Freezing Point: -15°C (approximate)
Boiling Point: >220°C (decomposes before boiling)
Flash Point: >110°C (closed cup, approximate)
Evaporation Rate: Slow
Flammability: Not easily flammable
Vapor Pressure: Negligible at room temperature
Vapor Density: Not applicable
Solubility: Highly soluble in water, miscible in polar organic solvents
Partition Coefficient (n-octanol/water): Not measurable due to ionic nature
Auto-Ignition Temperature: Data not available
Decomposition Temperature: ~220°C
Viscosity: Moderate to high at ambient temperature
Chemical Stability: Stable under recommended storage and handling conditions
Hazardous Reactions: May react exothermically with strong oxidizing agents, strong acids or bases, generating toxic or corrosive gases
Conditions to Avoid: High temperatures, direct sunlight, uncontrolled mixing with incompatible substances
Incompatible Materials: Strong acids, strong bases, oxidizers, halogenating agents
Hazardous Decomposition Products: Imidazole compounds, nitrogen oxides, phosphorus oxides, carbon monoxide, possibly phosphoric acid fumes
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Effects: Oral exposure causes gastrointestinal distress, nausea, possible vomiting, significant eye contact produces irritation, tearing and redness, skin absorption may lead to irritation or allergic reaction
Chronic Effects: Repeated exposure may cause skin sensitization, long-term skin contact could trigger dermatitis or allergic eczema
Toxicity Data: Acute Oral LD50 (rat): ~1,200 mg/kg (estimated, based on class and similar chemicals)
Carcinogenicity: No evidence of carcinogenic properties to date
Mutagenicity/Teratogenicity: No data suggest mutagenic or teratogenic effects
Sensitization: May act as a moderate skin sensitizer in predisposed individuals
Other Information: Risk of pulmonary irritation if inhaled as aerosol or mists
Environmental Toxicity: Moderately toxic to aquatic life, may cause long-term adverse effects in aquatic environment, aquatic EC50 (algae/48hr): 30–100 mg/L (estimated, refer to QSAR studies on related ionic liquids)
Persistence and Degradability: Not readily biodegradable, potential for moderate persistence in soil and water
Bioaccumulative Potential: Expected to have low bioaccumulation due to ionic properties
Mobility in Soil: High water solubility increases vertical mobility in soil, careful site containment is needed to prevent groundwater contamination
Other Adverse Effects: Disruption of microbial activity possible with large spills, avoid release to surface water
Waste Disposal Methods: Dispose of in accordance with local, regional, and national environmental control regulations, do not discharge undiluted product into drains or water bodies
Container Disposal: Do not reuse empty containers, triple rinse with water or appropriate solvent, follow chemical waste recycling protocols
Incineration: Suitable for incineration in approved facilities equipped for chemical waste
Special Precautions: Waste handlers must use recommended PPE, segregate from incompatible waste streams, keep records of volumes and disposal actions
UN Number: Not classified as hazardous for transport (consult current regulations for local exceptions)
Transport Hazard Class: Not regulated under ADR/RID, IMDG or IATA
Packing Group: Not assigned
Environmental Hazards: Not a marine pollutant under IMDG
Special Transport Precautions: Keep container upright and closed, store securely during transit to prevent leaks or punctures, use packaging that prevents any form of release
Transport Labeling: Ensure secondary containment for bulk shipments, follow all safety labeling requirements
TSCA Status: Listed or exempt under the Toxic Substances Control Act (verify with supplier)
DSL/NDSL (Canada): Check current list status
REACH Status (EU): Manufacturer/importer must ensure compliance for registration and usage restrictions
Other Regulatory Lists: Product not specifically listed as hazardous but must be managed per workplace safety and environmental guidelines
Worker Protection: Review applicable OSHA, WHMIS, or local chemical safety legislations to determine site requirements and employee rights
SARA Title III: Not subject to Section 302, 304, 313 reporting
Other Requirements: Provide safety training programs for frequent users, keep safety data and protocols updated per regulatory change cycles
