What is CAS 31570-04-4? An In-Depth Guide to Veenox Antioxidant 168

Introduction 

Veenox 168 CAS 31570-04-4 plays a crucial role as a high-performance stabilizer in the chemical and polymer industries. Commonly known as Antioxidant 168, this phosphite-based additive is widely used to enhance the stability and longevity of polymers, preventing oxidative degradation during processing and usage. Understanding its antioxidant properties and applications is essential for industries looking to improve material performance and durability. 

This guide explores the chemical nature, applications, and benefits of Antioxidant 168, as well as its role in polymer stabilization and industrial processes. 

Understanding Veenox 168 CAS 31570-04-4 

Every chemical substance is identified by a unique Chemical Abstracts Service (CAS) number. Veenox 168 CAS 31570-04-4 refers to Antioxidant 168, a phosphite ester used primarily as a processing stabilizer in various polymer applications. 

Antioxidant 168 Chemical Name: Tris(2,4-di-tert-butylphenyl) phosphite Molecular Formula: C42H63O3P Molecular Weight: 646.93 g/mol Chemical Structure: This compound consists of three 2,4-di-tert-butylphenyl groups bonded to a phosphite core, contributing to its exceptional stabilizing properties. 

Key Antioxidant Properties of Antioxidant 168 

1. Oxidation Inhibition: One of the primary benefits of Antioxidant 168 is its ability to prevent oxidative degradation of polymers, which occurs due to exposure to heat, oxygen, and UV radiation. 

1. Processing Stability: As a phosphite antioxidant, it protects materials from degradation during high-temperature processing in plastic manufacturing and polymer extrusion industries. 

1. Hydrolysis Resistance: The molecular structure of Veenox 168 CAS 31570-04-4 provides excellent resistance to hydrolysis, ensuring longer-lasting performance. 

1. Synergistic Effects: It is often combined with primary antioxidants such as hindered phenols to enhance long-term thermal stability in polymers. 

1. Compatibility with Various Polymers: Antioxidant 168 is highly effective in stabilizing a broad range of thermoplastics and elastomers, making it a versatile choice for multiple industrial applications. 

Applications of Antioxidant 168 

Due to its unique antioxidant properties, Antioxidant 168 is widely used across multiple industries: 

1. Plastics and Polymers

• Used in polypropylene (PP), polyethylene (PE), polystyrene (PS), and ABS resins to enhance oxidation resistance. 

• Protects plastics during high-temperature processing and extends their service life. 

• Plays a critical role in ensuring color retention and mechanical stability in high-performance polymer products. 

2. Rubber and Elastomers

• Reduces degradation in synthetic rubbers, improving material elasticity and durability. 

• Enhances processing stability in applications such as tire manufacturing. 

• Helps rubber compounds maintain flexibility and performance under extreme temperature conditions. 

3. Adhesives and Coatings

• Prevents oxidation and thermal degradation in hot melt adhesives and industrial coatings. 

• Contributes to the durability and long-term performance of paints and sealants. 

• Improves resistance to discoloration, keeping coatings and adhesives clear and effective for longer periods. 

4. Automotive and Packaging Industries

• Applied in producing automobile interiors, exterior coatings, and protective films. 

• Used in food packaging to ensure product integrity by preventing oxidation-related degradation. 

• Ensures mechanical strength and stability of protective layers in automotive components, reducing wear and tear. 

Comparison with Other Antioxidants 

To better understand Antioxidant 168, it is essential to compare it with other commonly used stabilizers. Unlike hindered phenolic antioxidants, which primarily provide long-term thermal stability, Antioxidant 168 is designed to act as a processing stabilizer. Its high hydrolysis resistance makes it a preferred choice in environments where moisture exposure is a concern. Additionally, when combined with hindered phenols, Antioxidant 168 enhances both processing and long-term stability, making it suitable for high-performance polymer applications. 

Antioxidant 168 stands out due to its efficiency in preventing early-stage degradation in the context of phosphite-based antioxidants. It ensures that materials retain structural integrity, especially in demanding industrial applications such as high-speed extrusion and molding. 

Safety and Handling of Veenox 168 CAS 31570-04-4 

Although Antioxidant 168 is considered relatively safe, proper handling precautions should be followed: 

• Storage Conditions: Store in a cool, dry place away from direct sunlight and moisture. 

• Handling Precautions: Use protective gear such as gloves and safety glasses to prevent skin and eye irritation. 

• Environmental Impact: While Antioxidant 168 is stable, proper disposal is necessary to prevent environmental contamination. 

• Regulatory Compliance: Many international regulations govern using CAS 31570-04-4 in food packaging and medical applications. Ensuring compliance with industry standards is essential for manufacturers utilizing this additive. 

Why Choose High-Quality Antioxidant 168? 

The effectiveness of Antioxidant 168 in polymer applications depends on its purity and quality. Choosing a reliable supplier ensures that the additive maintains its performance characteristics and does not introduce impurities that could compromise product integrity. Key factors to consider when selecting Antioxidant 168 include: 

• Purity Levels: High-purity Antioxidant 168 guarantees consistent performance in polymer formulations. 

• Stability in Application: The additive should remain effective across varying processing conditions. 

• Customization Options: Some suppliers provide specialized formulations to meet unique industry needs. 

The antioxidant properties of Veenox 168 CAS 31570-04-4, commonly known as Antioxidant 168, make it a critical stabilizer in polymer and industrial applications. With its ability to prevent oxidation, enhance processing stability, and improve material longevity, this additive plays a vital role across multiple industries. 

For companies looking for high-quality Antioxidant 168, Vinati Organics offers a reliable, superior-grade solution that ensures consistency and performance across various applications.