Product Name: Octyltributylphosphonium Chloride
Chemical Family: Quaternary phosphonium salts
CAS Number: 687973-07-1
Formula: C20H46ClP
Intended Use: Solvent, specialty chemical in research and industrial applications
Manufacturer: Commercial chemical suppliers; name and address provided with each specific order
Emergency Contact Number: Check shipping documents or container label for 24-hour emergency numbers
GHS Classification: Skin corrosion/irritation - Category 2; Serious eye damage/irritation - Category 2; Acute toxicity (oral, dermal, inhalation) - Category 4
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation. Harmful if inhaled or swallowed.
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust/vapor. Wear protective gloves and eye protection. Wash thoroughly after handling.
Known Symptoms: Redness, pain on contact with skin or eyes, nausea, headache, respiratory tract irritation
Chemical Name: Octyltributylphosphonium Chloride
Synonyms: Tributyl(n-octyl)phosphonium chloride
CAS Number: 687973-07-1
EC Number: Not assigned
Concentration: ≥98% pure
Impurities: Trace amounts of other phosphonium salts or solvent residues may be present in very low concentrations, typically under 1%
Inhalation: Move to fresh air. Seek medical attention if symptoms develop. Provide oxygen if breathing is difficult.
Skin Contact: Wash with plenty of soap and water for at least 15 minutes. Remove contaminated clothing. Seek medical advice for irritation.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if easy to do. Seek prompt medical care.
Ingestion: Rinse mouth thoroughly. Do not induce vomiting. Seek medical attention immediately.
General Advice: Show safety data sheet to doctor. Treat symptomatically.
Suitable Extinguishing Media: Foam, dry chemical powder, carbon dioxide. Water spray for large fires.
Specific Hazards: May release toxic fumes of phosphorous oxides and hydrogen chloride when burning.
Protective Equipment: Fire-fighters should use self-contained breathing apparatus and full protective gear.
Unusual Fire Hazards: Vapors may travel; avoid breathing combustion gases.
Advice for Fire-fighters: Isolate area. Do not use water jet. Cool containers with water spray to prevent pressure build-up and possible explosion in heat.
Personal Precautions: Wear chemical-resistant gloves, safety goggles, and suitable protective clothing. Avoid inhaling vapors or dust.
Environmental Precautions: Prevent spilled material from entering drains, surface or groundwater. Notify authorities if significant environmental contamination occurs.
Methods for Clean-up: Absorb liquid with inert material (sand, earth, vermiculite). Collect waste in a suitable closed container for disposal. Clean area with water and detergent.
Disposal of Contaminated Material: Dispose in accordance with official regulations, using a licensed waste disposal service.
Handling: Use in a ventilated area. Avoid contact with skin, eyes, or clothing. Do not breathe dust, vapor, or mist. Prevent build-up of electrostatic charge.
Storage: Store in a tightly closed container at room temperature or lower. Store away from oxidizers, acids, and strong bases. Keep in a dry, cool, well-ventilated area.
Incompatible Materials: Keep away from oxidizing agents, acids, and strong alkalis.
Hygiene: Never eat, drink, or smoke in work area. Wash hands before breaks and at end of work shift.
Engineering Controls: Use local exhaust ventilation, fume hood, or other corrective measures to maintain airborne exposure below recommended limits.
Occupational Exposure Limit: No established TLV by OSHA or ACGIH for this compound.
Personal Protection: Chemical-resistant gloves (nitrile, neoprene), safety goggles, lab coat, and closed footwear. Use respiratory protection (NIOSH/MSHA approved) if dust, vapor, or aerosols are generated above nuisance levels.
Environmental Controls: Prevent release into the environment by following containment and waste disposal procedures.
Appearance: Colorless to pale yellow liquid or low-melting solid
Odor: Mild, characteristic
pH: Not determined
Melting Point: 30 – 40°C
Boiling Point: Decomposes before boiling
Flash Point: > 100°C
Evaporation Rate: Not determined
Vapor Pressure: Very low at ambient conditions
Solubility: Miscible in water and organic solvents (ethanol, DMSO, acetonitrile)
Relative Density: 0.95 – 1.05 g/cm³
Partition Coefficient (Log Kow): Not available
Viscosity: Slightly viscous
Auto-ignition Temperature: Not available
Decomposition Temperature: Above 160°C
Explosive Properties: Product not sensitive to impact or static
Oxidizing Properties: Not an oxidizer
Chemical Stability: Stable under recommended storage conditions.
Conditions to Avoid: Heat, flames, sparks. Avoid strong oxidizing and reducing agents.
Incompatible Materials: Strong acids, strong oxidizers, alkali metals.
Hazardous Decomposition Products: Thermal decomposition may release phosphorous oxides, hydrogen chloride, carbon monoxide, and carbon dioxide.
Hazardous Polymerization: Will not occur under normal conditions.
Acute Toxicity: Expected to have moderate toxicity if inhaled or swallowed; LD50 (oral, rat) not fully established, estimated 300–1000 mg/kg
Skin Corrosion/Irritation: May cause moderate to severe irritation with prolonged contact
Serious Eye Damage/Irritation: Causes eye irritation, redness, watering
Sensitization: Sensitization potential not fully evaluated but is considered low
Repeated Dose Toxicity: No known long-term hazards from repeated exposure at low levels; high exposure over time may damage liver, kidneys, or nervous system
Carcinogenicity: No data showing carcinogenic properties in humans or animals
Mutagenicity: Not mutagenic based on current information
Reproductive Toxicity: No evidence of reproductive or developmental toxicity based on available data
Toxicity: Hazardous to aquatic life; very limited environmental data. High concentrations may cause harm to fish and invertebrates.
Persistence and Degradability: Not readily biodegradable. May persist in soil and water.
Bioaccumulative Potential: Not expected to significantly bioaccumulate.
Mobility in Soil: Moderate mobility. Product can leach into groundwater if released.
Other Adverse Effects: Discharge into the environment must be avoided due to toxicity to aquatic organisms.
Waste Disposal Methods: Dispose as hazardous chemical waste at an approved facility. Do not discharge into surface water, sewer, or ground.
Container Disposal: Triple rinse and puncture empty containers before disposal as hazardous waste.
Regulatory Requirements: Comply with all local, regional, national, and international regulations regarding hazardous waste disposal.
UN Number: Not assigned
UN Proper Shipping Name: Not classified as dangerous for transport by ICAO/IATA, IMDG, DOT based on available data
Transport Hazard Class: Not regulated
Packing Group: Not regulated
Environmental Hazards: Product is hazardous to aquatic environments; contain spillages during transport
Special Precautions: Avoid damage to containers during handling and transport.
OSHA Hazards: Irritant; harmful by inhalation, skin contact, or ingestion
Risk Phrases: R36/37/38: Irritating to eyes, respiratory system, and skin
Safety Phrases: S26: In case of contact with eyes, rinse immediately
Chemical Inventory Status: Reach registration not fully confirmed
Other Regulations: Subject to community right-to-know and workplace hazard communication standards in many regions
Labeling Requirements: Product must be labeled as hazardous according to local workplace safety regulations
