Description

Diphenyl Isopropylphenyl Phosphate is an organophosphate compound widely utilized as a flame retardant and plasticizer. Its primary value lies in enhancing the fire safety and flexibility of various polymer systems without significantly compromising other material properties. This product is essential for manufacturers in the plastics, electronics, and construction industries seeking to meet stringent fire safety regulations.

Application

• Primary flame retardant plasticizer for engineering plastics such as PVC, polycarbonate blends, and polyphenylene oxide (PPO).
• Key additive in wire and cable insulation and jacketing compounds to improve fire resistance.
• Component in electronic encapsulants and circuit board laminates for enhanced safety.
• Used in adhesive and sealant formulations requiring flame retardancy.
• Plasticizer for specialty synthetic rubbers and elastomers.
• Additive in hydraulic fluids and functional fluids where flame resistance is critical.
• Potential stabilizer or intermediate in the synthesis of other specialty chemicals.

Basic Information

Product Name	Diphenyl Isopropylphenyl Phosphate
CAS No.	28108-99-8
Molecular Formula	C21H21O4P
Molecular Weight	368.36 g/mol
Synonyms	Isopropylphenyl Diphenyl Phosphate; IPDPP; Phosphoric Acid, Diphenyl Isopropylphenyl Ester; Diphenyl Mono(isopropylphenyl) Phosphate; Isopropylated Triphenyl Phosphate (ITP) mixture component; FR-200; Reofos 35; Kronitex 35; Fyrolflex RDP related isomer
EINECS	248-864-3

Quality Control

Our Diphenyl Isopropylphenyl Phosphate is produced under a stringent quality management system. Each batch is tested to ensure consistent purity, performance, and compliance with relevant industry specifications for flame retardant additives. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong bases and incompatible materials. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Clear, Colorless to Pale Yellow Liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Acidity (as H3PO4)	≤ 0.1 %
Water Content (Karl Fischer)	≤ 0.1 %
Density at 25°C	1.18 - 1.22 g/cm³
Refractive Index (nD20)	1.550 - 1.560
Viscosity at 25°C	50 - 100 mPa·s

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.