Product Name: Tributylhexylphosphonium Chloride
Chemical Formula: C18H40PCl
CAS Number: 50586-59-9
Synonyms: Tributyl(n-hexyl)phosphonium chloride
Recommended Use: Phase transfer catalyst, ionic liquid, specialty chemical synthesis
Supplier Details: Name, full address, phone number, emergency contact number
GHS Classification: Skin Irritation, Eye Irritation, Acute Oral Toxicity
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, harmful if swallowed, may cause respiratory irritation
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust/fume/gas/mist/vapors, wash hands thoroughly after handling, wear protective gloves/eye protection, do not eat, drink or smoke while using this product
Chemical Name: Tributylhexylphosphonium Chloride
CAS No.: 50586-59-9
Concentration: 98 – 100%
Impurities/Additives: Trace amounts of by-products from synthesis, such as tributylphosphine
Eye Contact: Rinse carefully with water for several minutes, remove contact lenses, keep eyelids open
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing, seek medical advice for irritation
Inhalation: Move to fresh air area, seek medical attention if symptoms develop, loosen tight clothing
Ingestion: Rinse mouth, do not induce vomiting, obtain medical assistance immediately
Most Important Symptoms: Redness, stinging, feeling of irritation, difficulty breathing in case of inhalation
Advice for Medical Personnel: Symptomatic treatment, supportive care
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray for larger fires
Unsuitable Media: Direct water stream can spread material
Specific Hazards: During fire, may release toxic fumes of phosphorus oxides, hydrogen chloride
Protective Equipment: Self-contained breathing apparatus, full protective gear
Special Instructions: Fight fire from safe distance, keep containers cool by spraying with water, avoid inhalation of combustion products
Personal Precautions: Wear proper eye, face, and skin protection, use NIOSH-approved respirator
Environmental Precautions: Prevent material from entering drains, sewers, water sources, isolate spill area
Cleanup Methods: Absorb spill with inert material, sweep up and place in appropriate chemical waste container, thoroughly ventilate area, wash contaminated area with water and detergent
Other Precautions: Dispose according to local, regional, national regulations
Handling: Keep containers tightly closed, avoid direct contact with eyes, skin, clothing, use in well-ventilated area, implement measures to avoid generation of dust or vapor
Storage: Store in original container, in cool, dry, enclosed area, away from sources of ignition and strong oxidizers, moisture sensitive – reseal container after use
Incompatibilities: Strong oxidizers, strong acids, halogens
Exposure Limits: No occupational exposure limits established specifically for this compound
Engineering Controls: Use local exhaust ventilation, chemical fume hood
Personal Protection: Chemical-resistant gloves, safety goggles or face shield, lab coat or apron, use approved respirator if exposure values are exceeded
Hygiene Measures: Wash hands after handling, launder contaminated clothing before reuse, avoid eating, drinking, smoking in chemical handling areas
Appearance: Colorless to pale yellow, oily liquid or waxy solid
Odor: Mild, unpleasant
Melting Point: 30 – 40°C (86 – 104°F)
Boiling Point: Decomposes before boiling
Flash Point: Above 150°C (302°F)
Solubility: Soluble in water, alcohols, organic solvents
Vapor Pressure: Not significant at 20°C
Density: Approximately 0.93 g/cm3 at 25°C
pH: Approximately 5–7 (10% solution)
Partition Coefficient (n-octanol/water): Not measured
Chemical Stability: Stable under recommended storage conditions
Thermal Decomposition: Can decompose at elevated temperatures, producing fumes such as phosphine and hydrogen chloride
Hazardous Reactions: Reacts with strong oxidizers, acids, chlorinating agents
Incompatible Materials: Avoid contact with strong oxidizers, acids, halogens
Hazardous Decomposition Products: Phosphorus oxides, hydrogen chloride gas, carbon monoxide, carbon dioxide
Acute Toxicity: Oral LD50 (rat): estimated >1500 mg/kg
Skin Corrosion/Irritation: Moderately irritating to skin
Eye Damage/Irritation: Causes severe eye irritation
Respiratory Effects: Dust or vapor can cause respiratory tract irritation
Chronic Effects: Data limited; no evidence of carcinogenicity, mutagenicity, reproductive toxicity found in publicly available studies
Other Effects: No known sensitizing effects, but handle with caution due to lack of long-term data
Ecotoxicity: Toxic to aquatic life, potential to cause long-term adverse effects in aquatic environments
Persistence and Degradability: Likely to be persistent, poor biodegradability reported
Bioaccumulative Potential: Potential for bioaccumulation in aquatic species
Mobility in Soil: May leach to ground water in liquid form
Other Harmful Effects: Due to limited degradation, can impact water treatment systems and aquatic habitats negatively
Waste Disposal Methods: Treat as hazardous chemical waste, incinerate under controlled conditions equipped with scrubbers for acidic and phosphine gases
Contaminated Packaging: Triple rinse containers, puncture and dispose of at permitted chemical waste facility
Special Precautions: Do not dispose into surface waters, sewers, storm drains, adhere to all local, national disposal regulations
UN Number: Not regulated under most transport modes, check regional regulations
Transport Hazard Class: Not classified as hazardous for transport unless part of a mixture
Packing Group: Consult specific regulations for classification
Proper Shipping Name: Tributylhexylphosphonium Chloride or "Organic Phosphonium Compound" as required
Environmental Hazards: Marine pollutant in bulk quantities
Special Precautions for Transport: Avoid exposure to moisture, extreme temperature shifts, handle containers gently to prevent rupture
US Regulations: Not listed as hazardous under major US regulations (e.g., SARA, CERCLA), TSCA inventory status must be confirmed
EU Classification: Subject to REACH registration and restriction assessments, not found on ECHA SVHC list as of the last update
Canada: Evaluate for compliance with WHMIS and Canadian DSL
Other Regions: Check local chemical inventories and restrictions
Labeling Requirements: GHS label, hazard pictogram, signal word, hazard and precautionary statements on all packages
Workplace Controls: Implementation in accordance with local occupational health and safety rules
