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Antioxidant

Antioxidant 626

  • ChemicalName:Bis (2, 4-di-tert-butylphenol)pentaerythritol diphosphite
  • Molecular formula:C34H52N2O4
  • Molecular weight:552.79
  • CAS No.:26741-53-7
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Category

Physical properties:

 

Soluble in THF, toluene, acetone, n-heptane, n-hexane, methanol, insoluble in water. Low volatility and high phosphorous content.

 

Performance and Application:

Antioxidant FWEOS 26 is a high performance organo-phosphite processing stabilizer which provides excellent heat stability and reduction in polymer degradation during processing. It has good synergism when used with phenolic antioxidant. It can be applied in polyethylene, polypropylene and ethylene-vinylacetate copolymers. It can also be used in other polymers such as engineering plastics, styrene homo-and copolymers, polyurethanes, elastomers, adhesives and other organic substrates. FWEOS 26 can also be used in combination with light stabilizers such as hindered amine light stabilizers(HALS), ultraviolet absorbers. The amount to be used may be 0.05%~0.15%.

 

Storage and packaging:

 

Keep containers tightly closed in a cool, well-ventilated place. Paper-plastic composite bags or cardboard boxes with PE film bag inside, net weight 25kg, or according to customers’ requirement. Period of Validity: Normally 6 months.

Details

Appearance

White powder or grain

Melting point,℃

170.0~180.0

Volatiles,%

≤1.0

Acid Value,mg/KOH/g

≤1.0

Content of 2,4-di-tert-butyl-phenyl,%

≤1.0

Assay,%

≥95.0