Description

1,2-Bis(1,3,2-Dioxaphospholan-2-Yloxy)Ethane is a specialized organophosphorus compound, specifically a cyclic phosphite ester, known for its role as a high-performance intermediate and stabilizer. Its primary commercial value lies in its function as a synergistic antioxidant and thermal stabilizer in polymer systems, where it helps to prevent degradation and extend material lifespan. This chemical is essential for manufacturers in the plastics, synthetic fibers, and lubricant additive industries seeking to enhance product durability and performance under demanding conditions.

Application

• Polymer Stabilization: Acts as a key component in antioxidant packages for polyolefins (PP, PE), polyamides, and polyesters to prevent thermal and oxidative degradation during processing and end-use.
• Synergistic Additive: Used in combination with primary phenolic antioxidants (e.g., hindered phenols) to significantly improve the stabilization efficiency in plastics and elastomers.
• Lubricant and Grease Additive: Serves as an antioxidant and anti-wear agent in advanced synthetic lubricants and industrial greases.
• Chemical Intermediate: Employed in the synthesis of more complex organophosphorus compounds, including certain flame retardants and ligands for catalysis.
• Fiber Industry: Applied as a stabilizer in the production of synthetic fibers to maintain strength and color during high-temperature spinning processes.
• Adhesive and Sealant Formulations: Enhances the thermal stability and longevity of hot-melt adhesives and specialty sealants.

Basic Information

Product Name	1,2-Bis(1,3,2-Dioxaphospholan-2-Yloxy)Ethane
CAS No.	1015-05-0
Molecular Formula	C8H16O6P2
Molecular Weight	270.16 g/mol
Synonyms	Ethylene Glycol Bis(2-oxo-1,3,2-dioxaphospholane); 2,2'-(Ethane-1,2-diylbis(oxy))bis(1,3,2-dioxaphospholane); 1,3,2-Dioxaphospholane, 2,2'-(1,2-ethanediylbis(oxy))bis-; Bis(2-oxo-1,3,2-dioxaphospholanyl) Ether of Ethylene Glycol; Ethylene Bis(oxy-2,1,3,2-dioxaphospholane); Cyclic Ethylene Phosphite; Antioxidant PEP-36 (related commercial designation); Phosphite Stabilizer P-EPQ (related type)
EINECS	213-816-1

Quality Control

Our production of 1,2-Bis(1,3,2-Dioxaphospholan-2-Yloxy)Ethane adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and GC for residual solvents, to ensure it meets precise specifications for use in sensitive polymer and lubricant applications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, impurity profile, and physical properties is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (nitrogen or argon) in the headspace of the container is recommended to preserve efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Refractive Index (n20/D)	1.460 - 1.470
Density (20°C)	1.30 - 1.35 g/cm³
Water Content (KF)	≤ 0.2%
Acidity (as H3PO4)	≤ 0.1%

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