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Atomfair Tris(nonylphenyl)phosphite TNPP, Antioxidant TNP, Irgafos TNPP, Naugard TNPP C45H69O3P

Description Tris(nonylphenyl)phosphite (CAS 3050-88-2) is a high-performance organophosphite antioxidant widely utilized in polymer stabilization and industrial applications. With the molecular formula C45H69O3P and IUPAC name tris(4-nonylphenyl) phosphite , this compound acts as a highly effective secondary antioxidant, preventing thermal degradation and oxidative chain scission in polymers. It is particularly valued for its compatibility with polyolefins, ABS, PVC, and synthetic rubbers, where it synergizes with phenolic antioxidants to enhance material longevity. Available in liquid form, this phosphite exhibits excellent hydrolytic stability and low volatility, making it ideal for high-temperature processing. Suitable for research, manufacturing, and formulation of stabilized polymer systems.

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Description

Description

Tris(nonylphenyl)phosphite (CAS 3050-88-2) is a high-performance organophosphite antioxidant widely utilized in polymer stabilization and industrial applications. With the molecular formula C45H69O3P and IUPAC name tris(4-nonylphenyl) phosphite, this compound acts as a highly effective secondary antioxidant, preventing thermal degradation and oxidative chain scission in polymers. It is particularly valued for its compatibility with polyolefins, ABS, PVC, and synthetic rubbers, where it synergizes with phenolic antioxidants to enhance material longevity. Available in liquid form, this phosphite exhibits excellent hydrolytic stability and low volatility, making it ideal for high-temperature processing. Suitable for research, manufacturing, and formulation of stabilized polymer systems.

  • CAS No: 3050-88-2
  • Molecular Formula: C45H69O3P
  • Molecular Weight: 689.0
  • Exact Mass: 688.49843306
  • Monoisotopic Mass: 688.49843306
  • IUPAC Name: tris(4-nonylphenyl) phosphite
  • SMILES: CCCCCCCCCC1=CC=C(C=C1)OP(OC2=CC=C(C=C2)CCCCCCCCC)OC3=CC=C(C=C3)CCCCCCCCC
  • Synonyms: 3050-88-2, Phenol, 4-nonyl-, phosphite (3:1), Antioxidant TNP, Irgafos TNPP, Naugard TNPP

Application

Tris(nonylphenyl)phosphite is primarily used as a secondary antioxidant in polymer processing, where it decomposes hydroperoxides to prevent oxidative degradation. It is commonly applied in polyolefins, styrenics, and elastomers to improve thermal stability during extrusion and molding. The compound also finds use in adhesives and coatings to maintain performance under prolonged heat exposure. Its compatibility with phenolic antioxidants makes it a key component in synergistic stabilization systems.

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