Dingjide Petrochemical
Antioxidants
ZX-626
Chemical name: bis-(2,4-Di-tert-butylphenyl) pentaerythritol diphosphite
Molecular formula：C33H50O6P2
Molecular weight: 604
CAS No.：26741-53-7
Product characteristics
| Item | Unit | Index | |
|---|---|---|---|
| Appearance | - | White powder or granules | |
| Melting point range | ℃ | 170-180 | |
| Heating loss(80℃) | % | ≤1.0 | |
| Acid value | mgKOH/g | ≤1.0 | |
| Main content | % | ≥96.0 | |
| Content of free 2,4-di-tert-butylphenol | % | ≤1.0 | |
The ZX-626 phosphite ester auxiliary antioxidant is engineered for exceptional processing thermal stability and color protection during polyolefin resin processing, also exhibiting photostability properties. Typically used in conjunction with primary phenolic antioxidants, it is also widely applied in high polymer materials such as PS, polyamide, polycarbonate, and ABS.
Packaging:25 kg net weight/carton or tailor made.
