Description

Isodecyl Diphenyl Phosphate is a high-performance organophosphate ester widely recognized for its excellent flame-retardant and plasticizing properties. This compound is a critical additive in polymer formulations, enhancing material safety and durability without compromising performance. It is primarily utilized by manufacturers in the plastics, electronics, and construction industries seeking reliable and efficient flame-retardant solutions.

Application

• As a primary flame retardant and plasticizer in flexible and rigid polyvinyl chloride (PVC) formulations for cables, wires, and flooring.
• As a flame-retardant additive in engineering plastics, including polycarbonates, polyurethanes, and phenolic resins, for electronic housings and automotive components.
• In the production of fire-resistant hydraulic fluids and lubricants for industrial and aerospace applications.
• As a functional additive in adhesives, sealants, and coatings to improve fire safety and material flexibility.
• For enhancing the flame retardancy of synthetic rubbers and elastomers used in gaskets, belts, and specialized seals.
• In the formulation of fire-safe composite materials for construction, transportation, and public infrastructure.

Basic Information

Product Name	Isodecyl Diphenyl Phosphate
CAS No.	29761-21-5
Molecular Formula	C22H31O4P
Molecular Weight	390.45 g/mol
Synonyms	Phosphoric acid, isodecyl diphenyl ester; Isodecyl diphenyl phosphate; IDDP; Diphenyl isodecyl phosphate; Firemaster IDDP; Santicizer 148; Kronitex IDDP; Reofos IDDP; Plasticizer IDDP
EINECS	249-862-1

Quality Control

Our Isodecyl Diphenyl Phosphate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is tested against rigorous internal specifications, which typically include assay, color, acidity, and refractive index. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

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 to structure
Assay (GC)	≥ 98.0%
Acidity (as H3PO4)	≤ 0.1%
Color (APHA)	≤ 50
Refractive Index (20°C)	1.506 - 1.512
Density (20°C)	1.08 - 1.12 g/cm³
Water Content (KF)	≤ 0.1%

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