For product formulators and R&D scientists, understanding the precise technical attributes of raw materials is crucial for optimizing product performance and developing innovative solutions. Tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate (CAS 40601-76-1), often known as Antioxidant 1790, is a sophisticated hindered phenolic antioxidant that offers a unique combination of properties beneficial for a wide range of polymer applications. As a leading manufacturer and supplier, we provide detailed insights to help you leverage its capabilities effectively.

Understanding the Chemistry of Antioxidant 1790
Antioxidant 1790 is a sterically hindered phenolic compound featuring a triazine ring. The bulky tert-butyl groups adjacent to the hydroxyl (-OH) groups on the phenolic rings are key to its functionality. These groups provide steric hindrance, which:

• Enhances Stability: Protects the reactive phenolic radical formed after hydrogen donation, preventing it from initiating further degradation.
• Controls Reactivity: Allows for controlled radical scavenging, making it an effective primary antioxidant that primarily targets peroxy radicals.
• Contributes to Low Volatility: The high molecular weight (699.92 g/mol) inherent in its structure translates to low volatility, crucial for high-temperature polymer processing.

Key Technical Specifications and Their Impact
When you buy Antioxidant 1790, understanding its specifications is vital:

• Appearance: Typically a White Powder. This physical form facilitates easy handling and dispersion in various polymer systems.
• Melting Range: Approximately 158-162°C. This high melting point signifies good thermal stability and suitability for high-temperature applications.
• Assay (Purity): Often specified as ≥95% or ≥96%. High purity ensures consistent performance and predictable results in your formulations. We, as a dedicated supplier in China, ensure our product meets stringent purity requirements.
• Transmittance (e.g., at 450 nm & 500 nm): High transmittance values indicate low color contribution to the final polymer product, which is important for clarity and aesthetic appeal.

Performance Advantages for Formulators
By incorporating Tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate into your formulations, you can achieve:

• Superior Long-Term Thermal Stability (LTTS): Protects polymers from degradation during prolonged exposure to heat, extending product life.
• Excellent Processing Stability: Minimizes degradation during extrusion, injection molding, and other high-temperature manufacturing processes.
• Protection Against Gas Fading: Maintains color integrity when exposed to atmospheric pollutants like NOx.
• Synergistic Effects: Often exhibits enhanced performance when used in combination with secondary antioxidants like phosphites or thioesters, providing a comprehensive stabilization package.

Application Insights for Procurement
For procurement managers, understanding the application benefits is key to justifying the purchase. Our Antioxidant 1790 is ideal for:

• Polyolefins: For films, fibers, and molded articles where thermal resistance and color stability are crucial.
• Engineering Plastics: Enhancing the durability of polyamides, polyesters, and polyurethanes in demanding environments.
• Synthetic Fibers: Ensuring longevity and resistance to degradation in materials like spandex.

As a reliable manufacturer of polymer additives, we are here to support your formulation challenges. We provide the technical data and consistent quality you need to confidently select and utilize Tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate. Contact us to discuss your specific application needs and explore our competitive Antioxidant 1790 price.