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Dragonox® 168

CAS Number
31570-04-4
EC Number
250-709-6
Chemical Name
Tris(24-ditert-butylphenyl) phosphite
Chemical Family
Phosphites

Dragonox® 168 is a highly effective phosphite antioxidant. It acts as a secondary antioxidant and can be blended with several kinds of primary antioxidants. During processing, this product reacts with hydroperoxides formed by the autoxidation of polymers to improve the effective protection of the polymers' color.

Properties

Physical Form
  • Powder
  • Solid

Product families

Plastics — Polymer Additives
  • Antioxidants & Stabilizers

Other characteristics

Brand
Dragonox
Synonyms

2,4-Bis(1,1-dimethylethyl)phenol phosphite, Tri(2,4-di-t-butylphenyl) phosphite, Tri(2,4-di-tert-butylphenyl) phosphite, Tri(2,4-tert-butylphenyl) phosphite, Tris [2,4-di-tert-butylphenyl] phosphite, Tris(2,4-di-t-butylphenyl)phosphite, Tris(2,4-di-tert-butylphenoxy)phosphine, Tris(2,4-di-tert-butylphenyl) phosphite, Tris(2,4-di-tert-butyphenyl) phosphite, Tris(2,4-tert-butylphenyl) phosphite

Functions
Antioxidant, Secondary Antioxidant
Compatible Polymers & Resins

Acrylonitrile Butadiene Styrene (ABS), Polyamides, Polycarbonates (PC), Polyethylenes (PE), Polypropylenes (PP), Polystyrenes (PS)

Appearance
White powder
Applications

Dragonox® 168 is widely applied in PE, PP, PS, PA, PC, ABS and many other polymer materials.

Technology
Plastics
Storage Condition
Keep a in cool and well-ventilated place.
Packaging Information
Net 25kg/bags or carton
Compatible Polymers and Resins
  • Acrylonitrile Butadiene Styrene (ABS)
  • Polyamides
  • Polycarbonates (PC)
  • Polyethylenes (PE)
  • Polypropylenes (PP)
  • Polystyrenes (PS)
Plastics and Elastomers Functions
  • Antioxidant
  • Secondary Antioxidant

Technical data

Table 1 of 1

10 rows
CharacteristicValueUnit
Chemical NameTris - (2,4 - di - tert - butyl - phenyl) - phosphite—
Molecular Weight646g/mol
Chemical Formula42H6303P—
Melting Point183 - 187°C
Puritymin. 99%
Loss of Dryingmax. 0.3%
Clarity of SolutionClear—
Ash Contentmax. 0.1%
Transmittance (425 nm)min. 97%
Transmittance (500 nm)min. 98%

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