Description

Tricyclohexyl Trithiophosphite is a versatile organophosphorus compound that functions as a high-performance stabilizer and intermediate. Its primary commercial value lies in its ability to act as an effective antioxidant and metal deactivator, protecting materials from thermal and oxidative degradation. This makes it a critical component for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product longevity and performance under demanding conditions.

Application

• Polymer Stabilizer: Used as a secondary antioxidant and metal deactivator in polyolefins (e.g., PP, PE) and other polymers to prevent thermal and oxidative degradation during processing and end-use.
• Lubricant & Grease Additive: Functions as an anti-wear and extreme pressure (EP) additive, as well as an antioxidant, in synthetic lubricants and industrial greases.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex organophosphorus compounds, including pesticides and flame retardants.
• Rubber Industry: Acts as a non-staining stabilizer and antioxidant in synthetic rubber production to prevent premature aging.
• Adhesive & Sealant Formulations: Incorporated to improve the thermal stability and shelf-life of high-performance adhesives and sealants.
• Metalworking Fluids: Utilized as a corrosion inhibitor and stabilizer in cutting oils and hydraulic fluids.

Basic Information

Product Name	Tricyclohexyl Trithiophosphite
CAS No.	13676-85-2
Molecular Formula	C18H33PS3
Molecular Weight	392.62 g/mol
Synonyms	Tris(cyclohexyl) Trithiophosphite; Cyclohexyl Phosphorotrithioite; Phosphorotrithious Acid, Tris(cyclohexyl) Ester; Tris(cyclohexyloxy)phosphine Sulfide; P,S,S,S-Tris(cyclohexyloxy)phosphine; Trithiophosphorous Acid Tricyclohexyl Ester; Antage TPPT; TNPP-S Analog (Trithio)
EINECS	237-189-8

Quality Control

Our Tricyclohexyl Trithiophosphite is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay by titration, identification by FT-IR, and impurity profiling, to ensure it meets precise specifications for industrial applications. A Certificate of Analysis (COA) documenting purity, physical properties, and test results is provided with each shipment to guarantee consistency and traceability.

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 strong bases and incompatible materials such as strong oxidizing agents. The product is stable under recommended storage conditions.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0 %
Specific Gravity (20°C)	1.10 - 1.20
Refractive Index (n20D)	1.550 - 1.570
Water Content (KF)	≤ 0.5 %

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