Model NO.: Antioxidants
Melting Point: 170.0-180.0°c Min
Molecular Formula: C33h50o6p2
Molecular Weight: 604.69
Trademark: SWC
Origin: China
Product Name BIS(2,4-DI-TERT-BUTYLPHENYL) PENTAERYTHRITOL DIPHOSPHITE
Identification
Synonyms  Ultranox 626;Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite; 3,9-Bis(2,4-bis(1,1-dimethylethyl)phenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro(5.5)undecane; ADK Stab PEP 24; Mark PEP 24
Molecular Formula C33H50O6P2
Molecular Weight 604.69
CAS Number 26741-53-7
EINECS/ELINCS 247-952-5
Properties
Appearance white crystalline powder
Melting Point 170-180°C
Specification
Item |
Specification |
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 |
Application
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. Reference dosage at 0.1%-0.3%.
Packing and Storage
Packing In 25kgs net plastic bag into Aluminum bag with nitrogen protection into carton.
Storage Keep container tightly closed. Away from moisture ad heat to avoid hydrolysis. Â
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