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Antioxidant 24 Thp-24 Ultranox 626 CAS 26741-53-7

  • Product Name: Ultranox 626
  • CAS: 26741-53-7
  • MF: C33H50O6P2
  • MW: 604.69
  • EINECS: 247-952-5
  • Mol File: 26741-53-7.mol
  • Synonyms: antioxidant 24;Ultranox 626;3,9-bis(2,4-di-tert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane;BIS-(2,4-DI-TERT-BUTYLPHENYL)PENTAERYTHRITOL DIPHOSPHITE (ULTRANOX 626);2,4,8,10-Tetraoxa-3,9-diphosphaspiro5.5undecane, 3,9-bis2,4-bis(1,1-dimethylethyl)phenoxy-;3,9-Bis(2,4-di-tert-butylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro(5.5)undecan;4,8,10-Tetraoxa-3,9-diphosphaspiro[5.5]undecane, 3,9-bis[2,4-bis(1,1-dimethylethyl)phenoxy]-2;phosphorous acid, cyclic neopentanetetrayl bis(2,4-di-tert-butylphenyl)ester

    Features

    Melting point: 160 - 178°C
    Boiling point: 555.8±50.0 °C
    Density: 1.166 [at 20℃]
    Vapor pressure: 0Pa at 25℃
    Storage temp.: Store under inert gas (nitrogen or Argon) at 2 - 8°C
    Solubility: Slightly soluble in chloroform; slightly soluble in hexanes when heated
    Form: Solid
    Color: White to Off - White
    Water Solubility: 93μg/L at 25℃

    Specification

    Items
    Specifications
    Appearance
    White crystalline powder
    Purity 95.0% min
    Melting point
    170.0-180.0°C min
    Volatiles
    1.0% max
    Acid value
    1.0mgKOH/g max
    Free 2,4-di-t-butylphenyl
    1.0% max

    Products Usage

    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, PET,PP, PS, PA, PC, ABS and many other polymer materials. Reference dosage at 0.1%-0.3%.

    Package And Storage

    Package: 
    25kg/carton drum or as your requirements.
    Remark: Chemical composition and size can be optimized by the customers' requirements固体1x01固体25wq

    Storage:
    Keep container closed. Store in a dry place. Do not store at elevated temperatures. Keep from freezing. Do not reuse empty container. 

    Safety Protection

    Precautions for safe handling
    Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

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