Antioxidant 168
Tris(2,4-di-tert-butylphenyl) Phosphite (CAS 31570-04-4), commonly known by trade names such as Irgafos 168, is a widely used phosphite antioxidant and processing stabilizer with formula C42H63O3P and molecular weight ~646.9 g/mol. This phosphite acts principally as a hydroperoxide decomposer, reacting with peroxides formed during melt processing and polymer degradation to prevent chain scission, discoloration and formation of volatile by-products. It is effective in polyolefins, PVC, engineering plastics and a variety of polymer compounding systems.
KieRay Chem supplies Tris(2,4-di-tert-butylphenyl) Phosphite with reliable quality control and appropriate packaging to support industrial usage. Our supply reliability, certificates of analysis and technical guidance ensure customers can implement effective stabilization packages and optimize processing conditions. KieRay Chem offers practical assistance on synergistic antioxidant combinations and dosing to maximize polymer lifetime and processing performance. Tris(2,4-di-tert-butylphenyl) Phosphite is selected by formulators and purchasing teams that need dependable identity, consistent handling, and repeatable performance from batch to batch. KieRay Chem supports customers with responsive technical communication, careful document control, export-ready packing, and stable supply planning. Our team can coordinate specification confirmation, sample evaluation, production scheduling, and international logistics so that this CAS 31570-04-4 material is easier to qualify and reorder.
1. Hydroperoxide decomposer in polymer processing: Effectively reacts with hydroperoxides generated during extrusion and molding, limiting oxidative chain scission and preserving molecular weight and mechanical properties. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Tris(2,4-di-tert-butylphenyl) Phosphite (CAS 31570-04-4).
2. Color and odor control: By interrupting oxidative degradation pathways, it reduces thermal discoloration and off-odors in processed polymers, improving final appearance and consumer acceptance. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Tris(2,4-di-tert-butylphenyl) Phosphite (CAS 31570-04-4).
3. Synergistic use with phenolic antioxidants: When paired with hindered phenolic antioxidants, it forms a complementary stabilization system that protects against both processing-induced and long-term oxidative degradation. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Tris(2,4-di-tert-butylphenyl) Phosphite (CAS 31570-04-4).
4. Broad resin compatibility: Suitable for polyolefins, PVC, elastomers and engineering plastics; its solubility characteristics facilitate homogeneous distribution in masterbatches and compound formulations. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Tris(2,4-di-tert-butylphenyl) Phosphite (CAS 31570-04-4).
5. Processing performance benefits: Lowers formation of volatile degradation products and minimizes equipment fouling and die build-up during high-temperature processing, improving production efficiency. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Tris(2,4-di-tert-butylphenyl) Phosphite (CAS 31570-04-4).
6. Reliable supply and guidance: Provided in industrial packaging with certificates of analysis, KieRay Chem offers dosing recommendations, storage advice and technical support to help customers achieve consistent stabilization and product quality. It also helps users improve process consistency, manage production risk, and maintain predictable results across scale-up, routine manufacturing, and finished-product quality checks for Tris(2,4-di-tert-butylphenyl) Phosphite (CAS 31570-04-4).
Product Name: Antioxidant 168
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