Isopropylated Triphenyl Phosphate (IPPP / Reofos 65)

Name: Isopropylated Triphenyl Phosphate (IPPP / Reofos 65)
Brand: Chemzip
Price: 1 USD
Availability: InStock

CAS Number: 26967-76-0

Isopropylated triphenyl phosphate (IPPP) is a liquid aryl phosphate ester flame retardant and plasticizer used in flexible PVC, polyurethane foams, and rubber. Its isopropyl-substituted aryl structure delivers improved thermal stability, hydrolytic stability, and lower volatility compared to unsubstituted triphenyl phosphate, while retaining comparable phosphorus content and FR effectiveness. IPPP is widely used in flexible PVC wire and cable jacketing, PU foam, and vinyl coatings where both plasticization and flame retardancy are needed in a single additive.

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Technical Specifications

appearance	Colorless to pale yellow liquid
flash point (COC, °C)	>225
phosphorus content (%)	7.5–8.5
density (20°C, g/cm³)	1.14–1.16
viscosity (25°C, mPa·s)	40–80
isopropyl substitution degree	Approx. 65% (mixed mono/di)

Applications

Flexible PVC wire and cable insulation and jacketing flame retardant plasticizer
Rigid and flexible polyurethane foam flame retardant additive in polyol blends
Vinyl plastisol coatings for textile and tarpaulin with FR requirements
Natural and synthetic rubber compounds requiring FR with plasticizing effect
PVC automotive interior components including floor mats and door panels

Key Features

Improved hydrolytic stability over unsubstituted triphenyl phosphate reduces long-term migration from PVC
Liquid form enables easy incorporation into PVC plastisols, polyurethane polyol blends, and rubber
Dual plasticizer-FR function replaces two separate additives, reducing formulation complexity and cost
Low color (water-white) preserves optical clarity in transparent films and light-colored PVC compounds