Description

Antioxidant 5057 is a high-performance, hindered phenolic antioxidant widely recognized for its exceptional stabilizing effects in polymer systems. Its primary value lies in effectively inhibiting thermal oxidative degradation, thereby significantly extending the service life and maintaining the physical properties of materials during high-temperature processing and end-use. This additive is essential for manufacturers in the plastics, synthetic rubber, and adhesive industries seeking to enhance product durability and performance under demanding conditions. The compound is identified by CAS No. 68411-46-1.

Application

Antioxidant 5057 is a versatile stabilizer utilized across various polymer applications to prevent oxidative chain scission and crosslinking. Key application areas include:

• Polyolefins: Critical for stabilizing polypropylene (PP) and polyethylene (PE) during extrusion, injection molding, and long-term thermal aging.
• Engineering Plastics: Provides essential thermal protection for polymers like ABS, polystyrene (PS), and polycarbonate (PC) blends.
• Synthetic Rubbers: Used in SBR, BR, and EPDM to prevent cracking and maintain elasticity.
• Adhesives & Sealants: Enhances the thermal stability of hot-melt and reactive adhesive formulations.
• Fiber & Film: Protects polypropylene and polyester fibers and films from degradation during manufacturing and use.
• Masterbatches & Compounds: Serves as a key component in additive concentrates for easy dispersion in final polymer matrices.

Basic Information

Product Name	Antioxidant 5057
CAS No.	68411-46-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Irganox 5057; 1,3,5-Tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione; Tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate; Antioxidant 1790; AO-5057; Tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate; 1,3,5-Tris[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione
EINECS	Contact for details

Quality Control

Our production of Antioxidant 5057 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical testing, including assay purity, melting point determination, and color analysis. A Certificate of Analysis (COA) documenting all critical specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	220 - 225 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %

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