Isopropylphenyl phosphate

Isopropylphenyl phosphate (CAS 68937-41-7), also known as IPPP or isopropylated triphenyl phosphate, is an organophosphate ester used as a flame retardant and plasticizer.

Where is Isopropylphenyl phosphate used?

• Plastics and polymer compounding: reactive flame retardant-plasticizer
• PVC, polyurethane foams and engineering resins: improves processability while meeting flammability standards
• Hydraulic fluids and fire-resistant lubricants for aerospace and industrial machinery
• Automotive interior components: wire and cable insulation, seating foams, under-hood parts
• Metalworking fluids: fire resistance at elevated operating temperatures
• It delivers fire resistance and flexibility simultaneously, reducing the need for multiple additive systems.

Good to know: Buyers should confirm purity and isomer distribution with suppliers, as these affect flame retardant efficiency and compatibility with target polymer systems.

Commercial specifications

• Phosphorus content, viscosity and acid value are key quality parameters
• Bulk drums or IBC containers