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Antioxidant 168

  • Post Date:

    Jul 06,2025
  • Expiry Date:

    Jan 02,2026
  • Detailed Description:

    Cas No. :31570-04-4

    CAS No. [31570-04-4]
    Chemical name: Tris-(2.4-di-t-butylphenyl)- phosphite
    Molecular formula: C42H63O3P
    Molecular weight: 646.94
    Specification:
    Appearance: white crystalline powder
    Melting point: 182 186.5癈
    Acidity, mg KOH/g: 0.3% max.
    Volatiles: 0.5% max.
    Free 2,4-di-tert.-butyl-phenol: 0.2% max.
    Transmittance:
    425 nm: 97% min.
    500 nm: 98% min.
    Assay: 99% min.
    Solubility: clear solution
    Packing: 25 kg carton
    Usage:
    The product is a kind of high-effective solid phosphite ester antioxidant, which is superior to other phosphite ester in the effective protection of polymers color. It is often blended with phenolic principal antioxidant (such as Antioxidant 1010) to prepare composite antioxidant which improves the thermo-stability of polymer processing, thus making it widely applied in PE, PP, PS, PA, PC, ABS and many other polymer materials.


  • CAS Registry Number:

    31570-04-4
  • Synonyms:

    ;Tris(2,4-di-tert-butylphenyl) Phosphite;Antioxidant 168;IRGAFOS 168;Antioxidant JX-168;
  • Molecular Formula:

    C14H21O3P
  • Molecular Weight:

    268.2896
  • Molecular Structure:

    31570-04-4 Tris(2,4-di-t-butylphenyl)phosphite
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