Description

Polyethylene Glycol, Diethylphosphite Polycondensation Product is a specialized organophosphorus compound synthesized via the polycondensation of polyethylene glycol with diethyl phosphite. This product is valued for its unique combination of polyether flexibility and phosphite functionality, making it a versatile intermediate and additive. It is primarily sought by manufacturers in the polymer, lubricant, and specialty chemical industries for applications requiring flame retardancy, antioxidant properties, or as a reactive modifier.

Application

• As a reactive flame retardant and plasticizer in polyurethane foams, PVC, and other polymer systems.
• As a stabilizer and antioxidant in synthetic lubricants and hydraulic fluids to prevent thermal and oxidative degradation.
• As a key intermediate for the synthesis of more complex phosphonates and phosphate esters with tailored properties.
• As a viscosity modifier and dispersant in specialty coatings and adhesives formulations.
• In the production of textile auxiliaries to impart flame-retardant or softening characteristics to fabrics.
• Potential use as a chelating agent or sequestrant in specific industrial processes.

Basic Information

Product Name	Polyethylene Glycol, Diethylphosphite Polycondensation Product
CAS No.	68072-32-2
Molecular Formula	Contact for details
Molecular Weight	Variable (depends on PEG chain length)
Synonyms	Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, phosphate; PEG Diethylphosphite Condensate; Polyethylene Glycol Phosphite; Phosphited Polyethylene Glycol; Polyoxyethylene Phosphite; Oligomeric Ethylene Glycol Phosphite; Flame Retardant PEG Derivative; Antioxidant PEG Intermediate
EINECS	Contact for details

Quality Control

Our production of Polyethylene Glycol, Diethylphosphite Polycondensation Product adheres to strict internal quality protocols to ensure batch-to-batch consistency and performance reliability. Key parameters such as phosphorous content, hydroxyl value, viscosity, and acid number are rigorously monitored. A comprehensive Certificate of Analysis (COA) detailing these specifications is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under an inert atmosphere (e.g., nitrogen) after opening to prevent moisture uptake and oxidation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Phosphorus Content	Contact for details
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Viscosity @ 25°C (cP)	Contact for details
Water Content (KF)	≤ 0.5%

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