Description

Bis(2-Butoxyethyl) Isotridecyl Phosphite is a high-performance organophosphite antioxidant and stabilizer. This compound is critical for protecting polymers and synthetic materials from oxidative degradation and thermal breakdown during processing and service life. It is primarily needed by manufacturers in the plastics, lubricant, and synthetic rubber industries seeking to enhance product durability and longevity.

Application

• Primary antioxidant and stabilizer in polyolefins (PP, PE) and other polymers.
• Effective hydroperoxide decomposer in lubricants and synthetic oils to prevent viscosity increase and sludge formation.
• Used as a color and melt flow stabilizer during the high-temperature processing of engineering plastics.
• Imparts long-term thermal stability to adhesives, sealants, and synthetic elastomers.
• Acts as a synergistic co-stabilizer when used with primary phenolic antioxidants in stabilization packages.
• Employed in the formulation of greases and functional fluids to extend service life under oxidative stress.

Basic Information

Product Name	Bis(2-Butoxyethyl) Isotridecyl Phosphite
CAS No.	93980-87-1
Molecular Formula	C25H53O5P
Molecular Weight	464.66 g/mol
Synonyms	Isotridecyl Bis(2-butoxyethyl) Phosphite; Phosphorous Acid, Bis(2-butoxyethyl) Isotridecyl Ester; Isotridecyl Di(butoxyethyl) Phosphite; Antioxidant 688; Weston 688; Doverphos 688; ADK STAB 1500; Bis(2-butoxyethyl) Ester of Phosphorous Acid with Isotridecyl Alcohol
EINECS	Contact for details

Quality Control

Our Bis(2-Butoxyethyl) Isotridecyl Phosphite is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance as a polymer stabilizer. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and key physical properties is provided with every shipment to guarantee compliance with your specifications.

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 easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Phosphorus Content)	≥ 96.0%
Acidity (as Phosphorous Acid)	≤ 0.5%
Color (APHA)	≤ 100
Refractive Index (n20D)	1.450 - 1.455
Density (20°C)	0.94 - 0.98 g/mL
Moisture (Karl Fischer)	≤ 0.1%

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