Description

2-Butoxyethyl Didecyl Phosphite is a high-performance organophosphite compound widely utilized as a stabilizer and antioxidant in polymer processing. Its primary value lies in its ability to effectively scavenge hydroperoxides and prevent thermal and oxidative degradation, thereby extending the service life of finished products. This chemical is essential for manufacturers in the plastics, lubricant, and specialty chemical industries seeking to enhance the durability and color stability of their materials under demanding conditions.

Application

• Primary and secondary antioxidant in polyolefins (e.g., PP, PE) and other polymers.
• Stabilizer for synthetic lubricants and hydraulic fluids to prevent oxidation and viscosity change.
• Additive in adhesive and sealant formulations to improve thermal aging resistance.
• Processing stabilizer for engineering plastics during high-temperature extrusion and molding.
• Co-stabilizer in PVC and other halogenated polymer systems.
• Intermediate for the synthesis of more complex phosphite-based antioxidants.
• Stabilizing agent for elastomers and synthetic rubbers.

Basic Information

Product Name	2-Butoxyethyl Didecyl Phosphite
CAS No.	94006-31-2
Molecular Formula	C26H55O4P
Molecular Weight	462.69 g/mol
Synonyms	Bis(decyl) 2-butoxyethyl phosphite; Didecyl 2-butoxyethyl phosphite; Phosphorous acid, bis(decyl) ester, 2-butoxyethyl ester; 2-Butoxyethanol didecyl phosphite; Antioxidant 1222; Weston 491; Doverphos 253; Ultranox 253; Ethanoldidecylphosphite, 2-butoxy-; Stabilizer T 492
EINECS	Contact for details

Quality Control

Our 2-Butoxyethyl Didecyl Phosphite is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity, color, acidity, and phosphite content. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Phosphite Content)	≥ 97.0%
Acidity (as Phosphorous Acid)	≤ 0.5%
Color (APHA)	≤ 50
Refractive Index (n20D)	1.450 - 1.455
Density (20°C)	0.920 - 0.935 g/mL

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