Description

Ethaphos is a specialized organophosphorus compound widely recognized for its utility as a high-performance chelating agent and stabilizer. Its primary value lies in its ability to effectively sequester metal ions, preventing unwanted catalytic degradation and enhancing the stability of various formulations. This makes it a critical component for manufacturers in the polymer, agrochemical, and specialty chemical industries seeking to improve product shelf-life and performance under demanding conditions.

Application

• Polymer Stabilizer: Acts as a secondary antioxidant and metal deactivator in polyolefins (PP, PE) and other polymers to prevent thermo-oxidative degradation during processing and end-use.
• Agrochemical Formulations: Used as a stabilizer and compatibility agent in pesticides and herbicides to enhance shelf-life and maintain efficacy.
• Lubricant and Fuel Additive: Functions as an antioxidant and metal passivator in industrial lubricants and fuels to reduce sludge formation and corrosion.
• Chelating Agent: Effective in water treatment and industrial cleaning formulations to control scale and inhibit metal-ion catalyzed reactions.
• Plasticizer and Flame Retardant Synergist: Employed in certain PVC and engineering plastic formulations to improve flexibility and fire resistance.
• Intermediate for Specialty Chemicals: Serves as a key building block in the synthesis of more complex phosphorous-based compounds for various industrial applications.

Basic Information

Item	Details
Product Name	Ethaphos
CAS No.	65900-18-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Ethaphos; Tris(2,4-di-tert-butylphenyl) phosphite; Phosphorous acid, tris(2,4-bis(1,1-dimethylethyl)phenyl) ester; Irgafos 168; Alkanox 240; Doverphos S-480; Ultranox 668; Antioxidant 168; TBPP
EINECS	Contact for details

Quality Control

Our Ethaphos is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for identity, purity, and performance. We provide Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, melting point, and specific impurity levels. Our quality commitment aligns with global standards to ensure reliability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	180 - 185 °C
Loss on Drying	≤ 0.5%
Acidity (as H3PO4)	≤ 0.1%

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