Product Name: 1-Butyl-3-Methylimidazolium Dihydrogen Phosphate
CAS Number: 678045-45-7
Synonyms: [Bmim][H2PO4], Ionic Liquid
Recommended Use: Solvents, Catalysis, Extraction Processes
Manufacturer Information: Supplier name, address, phone number, emergency contact
Product Description: Clear to pale yellow liquid, mild characteristic odor
GHS Classification: Eye Irritant (Category 2A), Skin Irritant (Category 2), Acute Toxicity (Oral, Category 4), Aquatic Hazard (Category 3)
Hazard Statements: Causes skin irritation, causes serious eye irritation, harmful if swallowed, may cause damage to aquatic life
Pictograms: Exclamation mark symbol, hazard to environment
Signal Word: Warning
Precautionary Statements: Avoid contact with eyes and skin, wash thoroughly after handling, do not eat, drink, or smoke during use, avoid release to the environment
Potential Health Effects: Burns and irritation to skin and eyes, possible respiratory irritation, may be harmful if ingested
Chemical Name: 1-Butyl-3-Methylimidazolium Dihydrogen Phosphate
CAS Number: 678045-45-7
Concentration: >98%
Impurities: Trace water, trace imidazolium analogues
Molecular Formula: C8H17N2O4P
Molecular Weight: 236.21 g/mol
Inhalation: Move affected person to fresh air, monitor breathing, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water for at least 15 minutes, seek medical advice if irritation develops
Eye Contact: Flush eyes with water for at least 15 minutes lifting eyelids occasionally, seek immediate medical attention
Ingestion: Rinse mouth with water, do not induce vomiting, seek medical help immediately
Advice for First Responders: Wear protective gloves and eyewear, avoid exposure to spilled material
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical powder, carbon dioxide, water spray
Specific Hazards: May emit toxic fumes including phosphorus oxides, nitrogen oxides, carbon oxides when heated
Protective Equipment: Wear self-contained breathing apparatus, fire-resistant suit, prevent runoff from entering water systems
Special Instructions: Avoid inhalation of combustion products, use water spray to cool adjacent containers, evacuate area of non-emergency personnel
Personal Precautions: Wear gloves, chemical splash goggles, and protective clothing, ventilate area
Environmental Precautions: Prevent material from reaching drains or natural waterways, contain spill with absorbent materials like sand or vermiculite
Cleanup Methods: Collect liquid in sealable containers, clean spill site with water and detergent, dispose of contaminated materials according to regulations
Decontamination: Wash area thoroughly after removal
Handling: Use only in well-ventilated areas, avoid contact with skin, eyes, and clothing, do not inhale vapors or mist, avoid contamination with incompatible materials
Storage Conditions: Store in tightly sealed containers in a dry, well-ventilated location, keep away from heat sources, oxidizing agents, and strong acids
Special Requirements: Label storage containers clearly, include danger and hazard information, keep away from food and drink
Shelf Life: Stable under recommended conditions for at least two years
Occupational Exposure Limits: No specific U.S. OSHA or ACGIH limits; minimize exposure as a precaution
Engineering Controls: Provide sufficient general and local exhaust ventilation, use closed systems where possible
Personal Protective Equipment (PPE): Chemical resistant gloves (nitrile or neoprene), safety goggles or face shield, lab coat or apron, appropriate footwear
Respiratory Protection: Use NIOSH-approved respirator if vapor concentration increases or if handling large spills
Hygiene Measures: Wash hands after handling, remove and wash contaminated clothing before reuse, avoid eating or drinking around chemical
Appearance: Colorless to pale yellow liquid
Odor: Slight, characteristic
Melting Point: <-20°C
Boiling Point: Decomposes before boiling, >200°C
Flash Point: >110°C (closed cup)
Auto-ignition Temperature: Not determined
Explosive Properties: Not explosive under normal conditions
Vapor Pressure: Negligible at room temperature
Solubility: Very soluble in water, soluble in polar organic solvents
Density: 1.14 - 1.19 g/cm³ at 25°C
pH (10% solution): 1.7 - 2.2
Partition Coefficient (log Kow): Not available
Viscosity: 90–150 mPa·s at 25°C
Chemical Stability: Stable under standard conditions and recommended storage environment
Reactivity: Non-reactive under normal use; decomposes on strong heating
Incompatible Materials: Strong oxidizers, strong bases, strong acids, moisture may affect purity
Hazardous Decomposition Products: Phosphoric acid, nitrogen oxides, carbon oxides, hydrogen fluoride (if contaminated)
Polymerization: Will not occur
Routes of Exposure: Inhalation, skin, eye contact, ingestion
Acute Toxicity: LD50 (oral, rat): 500–2,000 mg/kg (estimated)
Skin Corrosion/Irritation: Causes moderate to severe irritation
Eye Damage/Irritation: Can cause serious injury, burning, and redness
Chronic Effects: Prolonged or repeated contact may produce dermatitis or sensitization
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, or OSHA
Mutagenicity: No data available
Reproductive Toxicity: No data available
Symptoms: Burning sensation, coughing, headache, gastrointestinal upset, skin redness or blistering
Ecotoxicity: Harmful to aquatic organisms, may result in long-lasting effects in the environment
Persistence and Degradability: Not fully biodegradable, persists under environmental conditions
Bioaccumulation Potential: Potential to bioaccumulate is low, but not fully excluded
Mobility in Soil: High mobility due to water solubility; potential for leaching into groundwater
Other Adverse Effects: Ionic liquids may disrupt aquatic life cycles and soil micro-organisms
Waste Treatment Methods: Avoid discharge to environment, treat hazardous waste using approved chemical incineration, follow local, national, and international regulations
Contaminated Packaging: Thoroughly wash and recycle or dispose of as hazardous material
Disposal Precautions: Do not mix with household waste, do not discharge into sewer, secure waste for transport using compliant containers
UN Number: Not classified as dangerous for transport
UN Proper Shipping Name: Non-hazardous chemical under most shipping regulations
Transport Hazard Classes: Not a regulated class for road, air, or sea movement
Packing Group: Not applicable
Special Precautions: Prevent spillage and container damage, label all containers appropriately during shipment
International Transport: Comply with ICAO, IATA, IMDG, ADR guidelines as appropriate
US TSCA Status: Listed or meets inclusion standards
OSHA Hazard Communication: Considered hazardous by OSHA standards (29 CFR 1910.1200)
EU REACH Status: Registration or notification may be required for import/use in Europe
DSCL (EEC): Not classified as a dangerous substance but handled as hazardous
SARA Title III Sections 302/313: Product does not contain listed substances
California Prop 65: Not listed, no known cancer or reproductive toxicity
Other Applicable Law: Comply with local, regional, and national chemical safety regulations
