Tris(1-chloro-2-propyl) Phosphate (TCPP)

Name: Tris(1-chloro-2-propyl) Phosphate (TCPP)
Brand: Chemzip
Price: 1 USD
Availability: InStock

CAS Number: 13674-84-5

Tris(1-chloro-2-propyl) phosphate (TCPP) is the world's highest-volume chlorinated organophosphate flame retardant, primarily used in flexible and rigid polyurethane foam. It achieves effective flame retardancy through dual halogen-phosphorus action and is accepted in many markets as a preferable alternative to TCEP and TDCPP due to its better regulatory profile. TCPP is a liquid that is fully miscible with polyols and easily incorporated at the standard 5–10 phr addition level in foam systems to pass FMVSS 302, Cal TB 117, and BS 5852 fire test requirements.

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Technical Specifications

appearance	Colorless to pale yellow liquid
chlorine content (%)	32.5–33.5
flash point (COC, °C)	>225
phosphorus content (%)	9.4–9.7
density (20°C, g/cm³)	1.28–1.30
viscosity (25°C, mPa·s)	60–100

Applications

Flexible polyurethane foam for furniture, bedding, and automotive seating (global primary use)
Rigid polyurethane foam insulation panels for refrigerators and building envelopes
Spray polyurethane foam (SPF) insulation for roofing and wall cavities
Semi-rigid and integral skin polyurethane foam for automotive dashboards
PVC cables and wire insulation in markets accepting chlorinated FR

Key Features

World's most widely used PU foam FR with established global supply chain and consistent quality
Better regulatory status than TCEP and TDCPP; not listed as SVHC under current EU REACH
Fully miscible with standard polyols enabling seamless integration into existing foam formulations
Achieves FMVSS 302, Cal TB 117, and BS 5852 FR test compliance at 5–10 phr in flexible PU foam