Product Name: Tetrabutylphosphonium Hydroxide
Synonyms: Tetrabutylphosphanium hydroxide
Chemical Formula: C16H37OP
CAS Number: 58681-06-4
Recommended Use: Specialty chemical, organic synthesis, phase transfer catalyst
Manufacturer: Supplier information as labeled on packaging
Emergency Contact: Manufacturer's emergency hotline number and local poison control
GHS Classification: Corrosive to skin and eyes, harmful if inhaled or ingested
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage, may cause respiratory irritation, toxic to aquatic organisms
Pictograms: Corrosive symbol, exclamation mark, environment hazard
Routes of Exposure: Skin contact, inhalation, ingestion, eye contact
Specific Risks: Can produce irreversible eye injury, burns respiratory tract, extremely harmful if swallowed
Chemical Name: Tetrabutylphosphonium Hydroxide
Concentration: Typically provided as a 40% aqueous solution
Impurities: May contain trace organic materials and water
Inhalation: Move person to fresh air, keep breathing unrestricted, administer oxygen if breathing is difficult, seek medical help
Skin Contact: Remove contaminated clothing, flush skin with water for at least 15 minutes, seek medical attention
Eye Contact: Rinse eyes cautiously with water for at least 15 minutes, remove contact lenses if possible, seek immediate medical attention
Ingestion: Do not induce vomiting, rinse mouth, give water if conscious, call a physician or poison control immediately
Notes for Physician: Treat symptomatically and monitor for delayed pulmonary effects
Suitable Extinguishing Media: Use foam, carbon dioxide, dry chemical or water spray
Unsuitable Media: Avoid direct water streams as product can react violently with acids
Specific Hazards: Emits toxic fumes of phosphine, oxides of phosphorus, carbon monoxide under fire conditions
Special Equipment: Use full protective gear and self-contained breathing apparatus
Precautions: Approach from upwind, keep containers cool, prevent chemicals from entering drains or water courses
Personal Precautions: Wear chemical-resistant gloves, goggles, face shield, and protective clothing
Environmental Precautions: Prevent release to waterways, contain spill with inert materials, notify local authorities
Cleanup Methods: Absorb with inert material, collect in suitable chemical waste container, ventilate area, wash spill site after pickup
Safe Handling Advice: Work in a chemical fume hood, avoid breathing vapors, avoid direct contact, only use with adequate ventilation, wash hands after handling
Storage Conditions: Keep in tightly closed original container, store in a cool, dry, well-ventilated area, segregate from acids, oxidizers and incompatible materials
Incompatible Materials: Avoid strong acids, oxidizing agents, and halogenated compounds
Packaging Materials: Store in corrosion-resistant containers such as HDPE or glass
Engineering Controls: Local exhaust ventilation, safety showers, eyewash stations, avoid open vessels
Personal Protection: Chemical-resistant gloves (nitrile or neoprene), goggles, face shield, lab coat, chemical-resistant apron
Respiratory Protection: Use an appropriate NIOSH/MSHA-approved respirator if ventilation is inadequate
Occupational Exposure Limits: No established OSHA or ACGIH limits for Tetrabutylphosphonium Hydroxide, monitor workplace conditions carefully
Appearance: Colorless to pale yellow liquid
Odor: Faint amine-like or organic odor
pH: Very alkaline in solution, typically above 13 (conc. aqueous)
Melting Point: Not determined
Boiling Point: Decomposes before boiling
Solubility: Readily miscible with water
Specific Gravity: Approximately 0.94-1.01 (dependent on concentration)
Vapor Pressure: Negligible at room temperature
Flash Point: Not applicable
Evaporation Rate: Not determined
Viscosity: Slightly viscous in concentrated form
Chemical Stability: Stable under recommended storage and handling conditions
Incompatible Materials: Acids, oxidizing agents, halogenated solvents
Hazardous Decomposition Products: Phosphine, carbon monoxide, phosphorus oxides, butenes under fire
Polymerization: Not expected under normal conditions
Reactivity: Produces heat and toxic fumes with acids, decomposes at high temperatures
Acute Toxicity: Harmful if swallowed, inhaled, or in contact with skin, LD50 data by exposure route is limited
Corrosive Effects: Causes severe burns to skin, eyes, and mucous membranes
Chronic Effects: Prolonged exposure may result in persistent dermatitis, conjunctivitis
Potential Symptoms: Pain, redness, tissue destruction on contact, possible breathing difficulty
Carcinogenicity: No data indicate carcinogenic potential
Sensitization: No known allergic sensitization
Aquatic Toxicity: Toxic to aquatic organisms, may cause long-term adverse effects
Mobility: Highly soluble in water, likely to disperse in aquatic environments
Degradability: Not readily biodegradable, persists in environment
Bioaccumulation: Not expected to bioaccumulate significantly
Other Adverse Effects: May alter pH and damage aquatic life if released
Waste Treatment Methods: Dispose via licensed chemical waste contractor
Disposal of Packaging: Decontaminate containers, dispose as hazardous waste
Environmental Precautions: Do not discharge to surface waters, sewers, or soils
Regulations: Follow local, regional, and national regulations on hazardous chemical disposal
UN Number: 2735
UN Proper Shipping Name: Amines, liquid, corrosive, n.o.s. (contains Tetrabutylphosphonium Hydroxide)
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: II
Marine Pollutant: Yes
Special Transport Measures: Keep tightly sealed, upright, and protected from damage during transport
OSHA Status: Classified as corrosive
SARA Title III Sections 302/304: Not listed
TSCA Inventory: Listed
WHMIS Classification (Canada): Class E (Corrosive Material)
EU Classification: Xi - Irritant, C - Corrosive
REACH Registration: Registered substance
Other Regulations: Subject to chemical hazard communication and worker protection standards
