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Name: Tetrabutylphosphonium Chloride
Chemical Formula: C16H36ClP
Physical Appearance: White to off-white solid or powder with a faint odor
Common Uses: Employed as a phase transfer catalyst in organic synthesis, industrial processes, research
Classification: Irritant to skin, eyes, and respiratory tract
Signal Word: Warning
Precautionary Statements: Avoid skin and eye contact; steam, dust, or powder may cause respiratory irritation; do not breathe dust or vapors
Risk Phrases: Can cause skin and eye irritation; prolonged exposure may intensify harmful reactions
GHS Symbols: Exclamation mark (irritant)
Main Component: Tetrabutylphosphonium Chloride (pure form or high percentage)
CAS Number: 2304-30-5
Impurities: Minor additives from manufacturing traces possible, though typical manufacturing ensures high purity
Eye Contact: Rinse eyes with clean water for at least 15 minutes; seek medical advice if irritation persists
Skin Contact: Wash area thoroughly with soap and running water; remove contaminated clothing
Inhalation: Move to fresh air; provide artificial respiration if breathing is difficult; seek help if symptoms remain
Ingestion: Rinse mouth thoroughly; do not induce vomiting; drink water if conscious and contact a health professional
Suitable Extinguishers: Carbon dioxide, foam, dry chemical powder; use water spray only to cool surfaces
Hazardous Combustion Products: Phosphorus oxides, hydrogen chloride, and carbon oxides can form under fire conditions
Special Equipment: Use self-contained breathing apparatus; wear protective clothing to prevent exposure
Thermal Hazards: Product may emit toxic fumes when burned; avoid inhalation of combustion products
Personal Precautions: Wear gloves, goggles, and protective clothing; keep people away from spill site
Environmental Precautions: Prevent runoff into drains, waterways, and soil; stop spread by diking or absorbing
Methods for Cleanup: Collect mechanically or with absorbent; place in containers for proper disposal; ventilate affected area
Disposal: Refer to local regulations for hazardous waste disposal
Handling: Work in a well-ventilated environment; minimize dust generation; wash hands after use; avoid inhalation and skin contact
Storage Conditions: Keep container tightly closed in a cool, dry, and well-ventilated spot; avoid sources of ignition; separate from incompatible chemicals, such as strong oxidizers
Storage Class: Store away from acids and bases to prevent unwanted reactions
Engineering Controls: Use local ventilation or extraction to prevent dust buildup; install emergency eyewash and shower stations in working areas
Personal Protection: Make goggles, gloves (nitrile or neoprene), lab coats, and dust masks or respirators available to all handlers
Occupational Exposure Limit: No established standard for this compound, but best practices suggest minimizing all exposures
Hygiene Measures: Remove contaminated clothing immediately; never eat, drink, or smoke while using product
Appearance: White crystal or powder
Melting Point: About 75°C to 85°C
Boiling Point: Decomposes before boiling
Solubility: Soluble in water and common organic solvents such as alcohols and acetone
Odor: Mild, characteristic odor, not usually overpowering
Vapor Pressure: Negligible at room temperature
Density: Typically ranges around 0.9–1.1 g/cm³
Chemical Stability: Product remains stable under normal temperatures and conditions
Conditions to Avoid: Excessive heat, open flame, incompatible materials
Incompatible Materials: Strong oxidizing agents, acids, strong bases
Decomposition Products: Burning produces phosphorus and carbon oxides, hazardous to breathe
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Plausible Health Effects: Short term exposure likely causes irritation of skin, mucous membranes, and eyes; high concentrations by ingestion or inhalation can trigger gastrointestinal upset or respiratory distress
Chronic Effects: Long-term or repeated contact can worsen skin conditions or provoke allergies
Carcinogenicity: Not known to be a carcinogen by major agencies
Sensitization: Rare, but possible in cases of repeated contact
Aquatic Toxicity: Significant release to waterways has the potential for harm to aquatic life
Bioaccumulation: Limited evidence exists, but best practice keeps material out of ecosystems
Degradability: Decomposition may be slow; breakdown products remain under study
Other Information: Avoid unintentional spillages; responsible disposal protects local environments
Waste Handling: Collect waste in sealed containers
Disposal Methods: Incinerate under controlled conditions if possible; approved hazardous waste facilities suit best
Avoid: Never discharge to sewers or natural bodies of water
Container Disposal: Clean thoroughly before discarding or recycling; follow hazardous waste protocols
Classification: Typically not regulated as a dangerous good; always check for updates
Shipping Precautions: Sturdy packaging with proper labels prevents leaks and exposure
Transport Guidance: Protect from heat, moisture, and shifting during transit
In Case of Spill: Notify authorities and follow emergency response guidelines
EU Regulations: Classified as hazardous for irritation hazard; safety data sheet requires handling guidance
US Regulations: Not listed as a controlled substance; local workplace safety rules apply
Other Standards: Comply with all safety, health, and environmental regulations in your jurisdiction
