Product Name: Tris(2-Chloroethyl) Phosphate
CAS Number: 115-96-8
Synonyms: TCEP, Phosphoric acid, tris(2-chloroethyl) ester
Recommended Use: Flame retardant in polyurethane foam, plastics, and resins
Manufacturer: Listed on purchased product; for workplace, supplier’s details required
Contact Information: Company emergency phone, standard information lines
Emergency Contact Number: CHEMTREC or local poison control center
Address: Physical and mailing address of supplier
Date of Issue/Revision: Shown on current documentation
Classification: Eye irritation (Category 2), Carcinogenicity (Category 2), Reproductive toxicity (Category 1B), Acute toxicity (oral Category 4)
Signal Word: Danger
Hazard Statements: Harmful if swallowed; may cause genetic defects; suspected of causing cancer; may damage fertility or the unborn child; causes serious eye irritation
Precautionary Statements: Avoid breathing dust/vapors; Wash hands thoroughly; use personal protective equipment as required; eat, drink, or smoke only after washing up
Pictograms: Health hazard, exclamation mark
Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Symptoms: Eye redness, respiratory discomfort, headache, fatigue
Ingredient: Tris(2-Chloroethyl) phosphate
Common Name: TCEP
Chemical Formula: C6H12Cl3O4P
Concentration: Usually 98-100% for industrial grade
Impurities: Manufacturing trace impurities, not generally hazardous at standard concentrations
Other Components: Not significant for main ingredient grades
Inhalation: Move to fresh air. Seek medical attention if symptoms persist. If breathing is difficult, oxygen may be administered by trained personnel.
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water. Wash thoroughly with soap. Medical advice is recommended if irritation develops.
Eye Contact: Rinse eyes cautiously with water for 15 minutes, lifting eyelids occasionally. Remove contact lenses if present. Seek medical attention promptly.
Ingestion: Rinse mouth. Do not induce vomiting. Seek immediate medical advice.
Most Important Symptoms: Irritation, headache, dizziness, gastrointestinal discomfort, possible chronic effects with repeated exposure
Note to Physician: Treat symptomatically. No specific antidote known.
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Specific Hazards: Decomposition can produce toxic fumes, including hydrogen chloride, phosphorus oxides, and carbon oxides
Special Equipment for Firefighters: Self-contained breathing apparatus, full protective suit
Protective Actions: Contain run-off from fire-fighting to prevent environmental contamination. Evacuate area and fight fire from a safe distance.
Explosion Data: No particular risk of explosion; dust buildup should be avoided
Personal Precautions: Use full protective equipment including gloves, goggles, and respirator if necessary. Ensure adequate ventilation.
Evacuation Procedures: Restrict access to spill area; remove incompatible materials.
Containment: Collect leaked material with absorbent (sand, earth, vermiculite) and place in secure containers.
Clean-Up Methods: Do not allow material to enter drains or groundwater. Scrape up residue and dispose of according to laws.
Environmental Precautions: Prevent further leakage or spillage if safe to do so. Notify authorities if product enters watercourses.
Handling: Handle in a chemical fume hood or with local exhaust. Avoid contact with skin, eyes, and clothing. No eating, drinking, or smoking near product use. Wash hands and face before breaks and after handling.
Storage Requirements: Store in tightly closed containers in cool, dry, well-ventilated area. Keep away from oxidizers, acids, and ignition sources.
Incompatibilities: Strong acids, bases, and oxidizing agents.
Protection Against Fire and Explosion: Ground and bond containers during transfer. Use spark-proof tools where large quantities are stored.
Exposure Limits: No specific OSHA or ACGIH exposure limits, but airborne exposures should be minimized. Industry recommends keeping levels as low as possible.
Engineering Controls: Work in a chemical fume hood. Maintain good ventilation in all working areas.
Personal Protective Equipment:
Appearance: Clear, colorless to pale yellow viscous liquid
Odor: Faint, characteristic odor
Odor Threshold: Not available
pH: Not determined (insoluble in water)
Melting Point: -64°C
Boiling Point: 320°C at 101.3 kPa
Flash Point: 210°C (closed cup)
Evaporation Rate: Very low
Flammability: Not easily flammable
Vapor Pressure: <1 hPa at 20°C
Vapor Density: 8.5 (air = 1)
Relative Density: 1.42–1.45 g/cm³ at 20°C
Solubility: Slight (approx. 1 g/L in water); miscible with most organic solvents
Partition Coefficient (log Kow): 1.44
Auto-ignition Temperature: No data
Decomposition Temperature: 320°C
Chemical Stability: Stable under normal industrial and storage conditions
Reactivity: Reacts with strong acids, bases, and oxidizing agents, generating decomposition products
Hazardous Reactions: May occur if mixed with incompatible materials
Conditions to Avoid: Heat, open flame, and direct sunlight
Incompatible Materials: Strong oxidants and acids
Hazardous Decomposition Products: Hydrogen chloride, phosphorus oxides, carbon oxides upon burning or decomposition
Acute Toxicity (Oral): LD50 (rat): approx. 1150 mg/kg
Acute Toxicity (Dermal): LD50 (rabbit): >2000 mg/kg
Acute Toxicity (Inhalation): Data not fully established, exposure should be avoided
Skin Corrosion/Irritation: May cause mild to moderate irritation
Serious Eye Damage/Irritation: Causes eye irritation
Respiratory Sensitization: Not classified as a respiratory sensitizer
Germ Cell Mutagenicity: Evidence of mutagenicity in laboratory studies
Carcinogenicity: Classified as possible carcinogen (IARC Group 2B: possibly carcinogenic to humans)
Reproductive Toxicity: Animal studies show possible reproductive harm
Specific Target Organ Toxicity: Can affect kidney and nervous system on repeated exposure
Symptoms Related to Exposure: Gastrointestinal upset, dizziness, headaches, long-term effects target fertility and development
Aquatic Toxicity: LC50 (fish, 96 hr): 6.3 - 14 mg/L; EC50 (daphnia, 48 hr): 96 mg/L
Persistence and Degradability: Not readily biodegradable; shows persistence in soil and water
Bioaccumulation: Low potential, based on log Kow value
Mobility in Soil: Potential for limited mobility due to low solubility; leaching possible in groundwater over time
Other Adverse Effects: Toxic for aquatic organisms in high concentrations; avoid ecosystem exposure
Waste Disposal Methods: Dispose of in accordance with local, regional, and national regulations. Incineration in an approved facility is preferred for large quantities.
Contaminated Packaging: Empty containers should be handled as hazardous; avoid reuse, send for appropriate disposal.
Special Precautions: Do not pour into drains, surface waters, or soil.
Disposal Classification: Often classified as hazardous waste; follow agency-specific codes
UN Number: Not regulated for transport under most conditions; check regional specifics
UN Proper Shipping Name: Not classified as dangerous for transport
Transport Hazard Class: N/A
Packing Group: N/A
Environmental Hazards: Product is dangerous to aquatic life; notify centers in case of spill in transit
Special Precautions for User: Use leak-proof containers for all shipments; comply with national transport regulations.
TSCA: Listed in the U.S. Toxic Substances Control Act Inventory
REACH Status: Registered; use restrictions apply across EU
ECHA: Substance of Very High Concern (SVHC) for reproductive toxicity
OSHA: Regulated as hazardous chemical
SARA Title III: May trigger reporting obligations if quantities reach threshold planning quantities
WHMIS: Classified as D2A (very toxic, chronic) and D2B (toxic, other effects)
California Prop 65: Listed as chemical known to cause cancer
GHS Classification: Health hazard pictogram, signal word “Danger” for applicable jurisdictions
