Description

Tridocosyl Phosphite is a high-molecular-weight organophosphorus compound, specifically a trialkyl phosphite. This chemical serves as a highly effective secondary antioxidant and process stabilizer, protecting polymers and other materials from thermal and oxidative degradation during processing and in end-use applications. It is primarily utilized by manufacturers in the polymer, plastics, and specialty lubricant industries seeking to enhance product longevity and performance.

Application

• Primary and secondary antioxidant in polyolefins (e.g., PP, PE) and other polymers.
• Process stabilizer to prevent degradation during high-temperature polymer extrusion and molding.
• Synergistic component in stabilization packages for plastics and synthetic rubbers.
• Additive in lubricants and greases to improve oxidative stability and reduce sludge formation.
• Intermediate in the synthesis of other organophosphorus compounds.
• Stabilizer for adhesives and sealants to prevent gelation and maintain viscosity.

Basic Information

Product Name	Tridocosyl Phosphite
CAS No.	85118-41-8
Molecular Formula	C69H141O3P
Molecular Weight	1049.8 g/mol
Synonyms	Tricosyl Phosphite; Tris(tricosyl) Phosphite; Phosphorous Acid Tridocosyl Ester; Tris(docosyl) Phosphite; Docosyl Phosphite (tri-); Tridocosyl Phosphite; Tris(n-docosyl) Phosphite; Antioxidant TDP
EINECS	Contact for details

Quality Control

Our Tridocosyl Phosphite is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, color, and performance. Certificates of Analysis (COA) detailing assay, identity, and impurity profiles are provided to guarantee consistency and reliability for your industrial 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 easily oxidized; it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Acid Value	≤ 1.0 mg KOH/g
Color (APHA)	≤ 50
Moisture (KF)	≤ 0.5%

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