Description

Tris(2-Chloroethyl) Phosphite is an organophosphorus compound widely used as a key intermediate and additive in advanced chemical synthesis. Its primary commercial value lies in its role as a flame retardant synergist and a versatile building block for more complex phosphorus-containing molecules. This product is essential for manufacturers in the polymer, agrochemical, and specialty chemical industries seeking to enhance material properties or develop novel compounds.

Application

• Flame Retardant Synergist: Used in combination with halogenated flame retardants to improve the fire resistance of plastics, textiles, and coatings.
• Chemical Intermediate: Serves as a crucial precursor in the synthesis of pesticides, herbicides, and other organophosphorus agrochemicals.
• Polymer Additive: Functions as a stabilizer and antioxidant in polymer formulations to prevent degradation during processing and use.
• Lubricant & Hydraulic Fluid Additive: Imparts anti-wear and extreme pressure properties to industrial lubricants and functional fluids.
• Phosphorylation Agent: Employed in organic synthesis to introduce phosphite or phosphate groups into target molecules.
• Epoxy Resin Modifier: Used to modify the properties of epoxy resins, improving flexibility and adhesion.

Basic Information

Product Name	Tris(2-Chloroethyl) Phosphite
CAS No.	140-08-9
Molecular Formula	C6H12Cl3O3P
Molecular Weight	269.49 g/mol
Synonyms	Tris(β-chloroethyl) phosphite; Phosphorous acid, tris(2-chloroethyl) ester; 2-Chloroethanol phosphite (3:1); Tris(2-chloroethoxy)phosphine; CEPS; TCEP (Note: sometimes confused with Tris(2-chloroethyl) phosphate, a different compound); Ethanol, 2-chloro-, phosphite (3:1)
EINECS	205-400-0

Quality Control

Our Tris(2-Chloroethyl) Phosphite is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and 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 incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. 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)	≥ 97.0%
Density (20°C)	1.35 - 1.39 g/cm³
Refractive Index (n20D)	1.480 - 1.490
Water Content (KF)	≤ 0.5%
Acidity (as HCl)	≤ 0.1%

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