Description

Bis(2,4-Di-tert-Butylphenylphosphate) is a high-performance organophosphorus compound widely utilized as a stabilizer and processing aid. Its primary value lies in its exceptional ability to protect polymers from thermal and oxidative degradation during high-temperature processing and long-term use. This product is essential for manufacturers in the plastics, polymer, and specialty chemical industries seeking to enhance the durability and lifespan of their materials.

Application

• Polymer Stabilizer: Acts as a highly effective secondary antioxidant and phosphite processing stabilizer for polyolefins (PP, PE), engineering plastics, and styrenics.
• Synergistic Formulations: Used in combination with primary phenolic antioxidants to provide superior long-term thermal stability and color retention in polymer products.
• Lubricant & Fuel Additive: Employed as an anti-wear agent and antioxidant in advanced lubricant formulations and industrial oils.
• Adhesive & Sealant Production: Enhances the thermal stability and processing performance of hot-melt adhesives and various sealant systems.
• Elastomer Processing: Improves the scorch resistance and aging properties of synthetic rubbers during compounding and vulcanization.
• Specialty Chemical Intermediate: Serves as a key building block in the synthesis of more complex phosphite and phosphate-based additives.

Basic Information

Product Name	Bis(2,4-Di-tert-Butylphenylphosphate)
CAS No.	69284-93-1
Molecular Formula	C28H43O4P
Molecular Weight	474.61 g/mol
Synonyms	Bis(2,4-di-tert-butylphenyl) phosphate; Phosphoric acid, bis(2,4-di-tert-butylphenyl) ester; 2,4-Di-tert-butylphenyl phosphate; Irgafos 168 degradation product; Tris(2,4-di-tert-butylphenyl) phosphite hydrolysis product; Antioxidant 168 phosphate; AO-168 phosphate
EINECS	Contact for details

Quality Control

Our production of Bis(2,4-Di-tert-Butylphenylphosphate) adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques like HPLC and GC to ensure high purity and consistent performance as a polymer stabilizer. Certificates of Analysis (COA) documenting key parameters such as assay, color, and specific impurities are provided and can be tailored to meet specific customer or regulatory requirements.

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 moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	160 - 180 °C
Loss on Drying	≤ 0.5%
Color (APHA)	≤ 50
2,4-Di-tert-butylphenol (HPLC)	≤ 0.5%

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