Description

Tris(4-Ethylphenyl) Phosphate is a high-purity organophosphate compound, also known by its CAS number 3820-69-7. It serves as a critical functional additive and chemical intermediate valued for its stability and performance in demanding industrial formulations. This product is essential for manufacturers in the polymer, lubricant, and specialty chemical sectors seeking reliable flame retardancy and plasticizing effects.

Application

• Primary use as a flame retardant plasticizer in PVC, polyurethane foams, and other polymer systems.
• Functional additive in industrial lubricants and hydraulic fluids to enhance thermal and oxidative stability.
• Chemical intermediate for the synthesis of more complex organophosphate esters with tailored properties.
• Component in specialty adhesive and sealant formulations requiring improved flexibility and fire resistance.
• Potential use as a solvent or extractant in specific chemical separation processes.
• Additive in engineering plastics and composite materials to meet specific flame retardancy standards.

Basic Information

Product Name	Tris(4-Ethylphenyl) Phosphate
CAS No.	3820-69-7
Molecular Formula	C24H27O4P
Molecular Weight	410.44 g/mol
Synonyms	Tris(p-ethylphenyl) phosphate; Phosphoric acid tris(4-ethylphenyl) ester; 4-Ethylphenyl phosphate; TOEP; Tri(4-ethylphenyl)phosphate; p-Ethylphenyl phosphate triester; 1,1',1''-Phosphorylidynetris(4-ethylbenzene)
EINECS	223-304-8

Quality Control

Our production of Tris(4-Ethylphenyl) Phosphate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high purity, consistent performance, and traceability. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases. The container should be kept tightly sealed to minimize moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Acidity (as H3PO4)	≤ 0.1%
Water Content (KF)	≤ 0.2%
Refractive Index (n20D)	1.550 - 1.560
Density (20°C)	1.10 - 1.20 g/mL

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