Description

Tridecyl Phosphite is an organophosphorus compound widely used as a high-performance stabilizer and intermediate in polymer and chemical synthesis. Its primary value lies in its ability to act as an effective antioxidant and secondary stabilizer, preventing degradation and extending the service life of sensitive materials. This product is essential for manufacturers in the plastics, lubricant, and specialty chemical industries seeking to enhance product durability and performance under demanding conditions.

Application

• As a secondary antioxidant and stabilizer in polyolefins (e.g., PP, PE) and other polymers to prevent thermal and oxidative degradation.
• As a synergistic component in combination with primary phenolic antioxidants to enhance overall stabilization efficiency in plastics and elastomers.
• As an intermediate in the synthesis of more complex organophosphorus compounds used as flame retardants or specialty additives.
• As a stabilizer and anti-wear additive in synthetic lubricants and hydraulic fluids to improve thermal stability and reduce friction.
• For the stabilization of PVC and other halogen-containing polymers against dehydrochlorination and color formation.
• In the formulation of adhesives and sealants to prevent gelation and maintain viscosity stability during storage and processing.

Basic Information

Product Name	Tridecyl Phosphite
CAS No.	2929-86-4
Molecular Formula	C39H81O3P
Molecular Weight	628.99 g/mol
Synonyms	Tris(tridecyl) phosphite; Phosphorous acid, tris(tridecyl) ester; Tridecyl phosphite (TDP); Tris(tridecyl) phosphite; Tridecyl phosphite ester; TDP; Lankromark LE65; Weston TDP; Antioxidant TDP
EINECS	220-898-4

Quality Control

Our Tridecyl Phosphite is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing purity, identity, and key parameters is provided with each shipment to guarantee consistency and support your quality assurance protocols.

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); containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to hydrolysis and degradation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0 %
Acidity (as H3PO4)	≤ 0.1 %
Color (APHA)	≤ 50
Refractive Index (n20D)	1.455 - 1.465
Density (20°C)	0.885 - 0.905 g/mL
Moisture (KF)	≤ 0.1 %

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