Tris(2-chloroethyl) Phosphate (TCEP)

Name: Tris(2-chloroethyl) Phosphate (TCEP)
Brand: Chemzip
Price: 1 USD
Availability: InStock

CAS Number: 115-96-8

Tris(2-chloroethyl) phosphate (TCEP) is a halogen-phosphorus synergistic flame retardant and plasticizer for flexible polyurethane foam, PVC, and resin systems. It provides high flame retardant efficiency through dual chlorine and phosphorus mechanisms at relatively low loading levels. TCEP is a clear liquid with good compatibility across a wide range of flexible foam and vinyl systems. Note: TCEP is classified as an SVHC under EU REACH due to reproductive toxicity concerns; users in regulated markets should evaluate alternative chlorinated or halogen-free FR options.

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Technical Specifications

appearance	Colorless transparent liquid
chlorine content (%)	37.0–37.5
flash point (COC, °C)	>225
phosphorus content (%)	10.7–11.0
density (20°C, g/cm³)	1.39–1.42
viscosity (25°C, mPa·s)	20–40

Applications

Flexible polyurethane foam flame retardant in non-restricted jurisdictions
PVC gel coat and plastisol applications requiring liquid halogen-phosphorus FR
Rigid polyurethane and phenolic foam flame retardant where SVHC restrictions allow
Epoxy coating and resin flame retardant reactive diluent
Unsaturated polyester gel coat with halogen-phosphorus FR synergism

Key Features

Halogen-phosphorus synergism provides high FR efficiency at lower loading than phosphorus-only alternatives
Clear liquid with low viscosity enables easy processing in polyurethane foam dispensing and PVC plastisol systems
Wide compatibility with polyols, polyesters, and vinyl resins without adverse effects on processing
Regulatory note: Listed as EU REACH SVHC; verify local regulations before specifying for end products