Description

Tris(Tridecan-1-Yl) Phosphite is a high-purity organophosphorus compound widely utilized as a high-performance stabilizer and antioxidant. Its primary value lies in its ability to prevent oxidative degradation and maintain the integrity of sensitive materials during processing and long-term use. This product is essential for manufacturers in the polymer, lubricant, and specialty chemical industries who require reliable protection against thermal and oxidative stress.

Application

• Polymer Stabilizer: Acts as a highly effective secondary antioxidant and process stabilizer in polyolefins (e.g., PP, PE), PVC, and engineering plastics to prevent discoloration and maintain mechanical properties.
• Lubricant & Grease Additive: Used as an anti-wear and extreme pressure (EP) additive, as well as an antioxidant, in synthetic lubricants, hydraulic fluids, and industrial greases to extend service life.
• Rubber Industry: Functions as a non-staining antioxidant and stabilizer in synthetic rubber production and processing, protecting against heat aging.
• Adhesive & Sealant Formulations: Incorporated to enhance the thermal-oxidative stability of hot-melt adhesives, polyurethane systems, and other sealants.
• Synergistic Stabilizer Systems: Often used in combination with primary phenolic antioxidants to provide superior, cost-effective stabilization in demanding applications.
• Chemical Intermediate: Serves as a key building block in the synthesis of other specialized organophosphorus compounds for various industrial uses.

Basic Information

Product Name	Tris(Tridecan-1-Yl) Phosphite
CAS No.	4089-53-6
Molecular Formula	C39H81O3P
Molecular Weight	629.03 g/mol
Synonyms	Tris(tridecyl) phosphite; Tridecyl phosphite (tris); Phosphorous acid, tris(tridecyl) ester; Tris(tridecan-1-yl) phosphite; Tris-n-tridecyl phosphite; Antioxidant TNPP (related class); TDP; Tridecan-1-ol, phosphite (3:1)
EINECS	223-816-7

Quality Control

Our Tris(Tridecan-1-Yl) Phosphite is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by titration and impurity profile analysis, to ensure it meets precise specifications for color, clarity, and phosphite content. A comprehensive Certificate of Analysis (COA) documenting purity, acid value, and other critical parameters is provided with every shipment to guarantee consistency and performance.

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; containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen blanket) after opening to prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0 %
Acid Value	≤ 1.0 mg KOH/g
Color (APHA)	≤ 50
Refractive Index (n20/D)	1.455 - 1.465
Density (20°C)	0.88 - 0.92 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.