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Chemical Name: Butylphosphoric acid Common Synonyms: Dibutyl phosphate, Monobutyl phosphate Chemical Formula: C4H11O4P Appearance: Clear to slightly yellow liquid, sometimes faint odorous Common Use: Metal extraction, chemical synthesis, emulsification
Hazard Class: Corrosive to skin and eyes, moderate inhalation risk, mild environmental hazard Pictograms: Corrosive symbol, exclamation mark for irritation Main Hazards: Skin burns, eye damage, inhalation irritation, slippery spills cause falls Warning Statements: Contact burns skin, fumes may irritate lungs, ingestion causes severe digestive tract injury
Main Component: Butylphosphoric acid (>95%) Other Components: Minor impurities from manufacturing, usually no significant additive contaminants Impurity Disclosure: Sometimes contains traces of related phosphoric acid esters
Eye Exposure: Flush with plenty of water, lids wide apart, rinse persistently Skin Exposure: Remove contaminated clothing, wash with soap and water Inhalation Exposure: Move to fresh air, rest, get help for breathing difficulty Ingestion: Rinse mouth, do not induce vomiting, seek medical advice immediately Extra Notes: Prompt attention crucial for splashes to eyes
Suitable Extinguishing Media: CO2, dry chemical powder, foam Specific Hazards: Acidic vapors rise, irritating smoke, possible release of phosphorus oxides when hot Protective Equipment: Chemical-resistant suit, full face shield, breathing apparatus Special Techniques: Control runoff to avoid drains, keep containers cool with water spray
Personal Precautions: Wear gloves, goggles, acid-resistant boots Spill Containment: Dike area with sand, prevent from seeping into soil or wastewater Cleanup Methods: Neutralize with soda ash, shovel up, wash away residue with lots of water Ventilation: Ensure air exchange, avoid breathing vapors, use local exhaust
Handling: Use only with chemical-resistant gloves, protect skin and eyes, never eat, drink, or smoke nearby Storage: Keep containers tightly sealed, away from oxidizers and strong bases, cool location, avoid sunlight Technical Measures: Use secondary containment for large containers, label all vessels clearly
Workplace Limits: No established permissible exposure limit, follow best industry hygiene Engineering Controls: Work under fume extraction or with forced ventilation Personal Protective Equipment: Safety glasses, chemical-resistant gloves, lab coat, face shield for splashes Hygiene Measures: Wash hands after use, do not take contaminated gear home
State: Liquid Color: Clear to pale yellow Odor: Slight, sometimes pungent Boiling Point: Approximately 150-200°C Melting Point: Below room temperature Solubility: Soluble in water, may cause local heating as it dissolves pH: Acidic (measured at recommended dilution) Vapor Pressure: Low under standard conditions
Stability: Stable in closed containers at ambient temperature Reactivity: Reacts strongly with bases, oxidizers, many metals Thermal Decomposition: Produces toxic phosphorus oxides, irritating vapors at high heat Incompatible Materials: Strong bases, sodium hypochlorite, strong oxidizers
Acute Effects: Contact causes chemical burns, pain, potential blistering, ingestion damages GI tract Chronic Effects: No clear evidence linking to long-term health risks in everyday use, but repeated exposure roughs up skin, irritates airways Sensitization: No widespread reports of sensitization Route of Entry: Skin and eyes at greatest risk; inhalation possible in poorly ventilated spots
Aquatic Toxicity: Unfriendly to fish and algae, disrupts water pH, moderate long-term concern in spill-prone zones Biodegradability: Breaks down slowly in soil and water, risk grows with repeated spills Soil Mobility: Moves with water, may reach groundwater in sandy areas Persistent Risks: No bioaccumulation known, but acid effect disrupts ecosystems
Recommended Methods: Neutralize with lime, soda ash, or similar base Local Regulations: Follow municipal rules for hazardous chemical disposal Container Disposal: Rinse thoroughly before disposal, never reuse for food or drink Volume Precaution: Larger quantities require professional disposal through licensed waste contractors
UN Number: Regulated as a corrosive substance Hazard Label: Corrosive sticker for all transit Packing Group: Usually Group II, stricter packing needed Shipping Instructions: Prevent leaks, label clearly, secure in upright position Common Modes: Road and rail preferred for small drums; bulk may need tankers with inner lining
Classification: Registered as hazardous under most chemical laws for workplace safety Right-to-Know: Disclosed on workplace inventory lists Reporting Requirements: Spills above certain amounts must be reported to authorities Personal Guidelines: Every handler should receive safety training in chemical use
