Antioxidant RCA-626
DESCRIPTION
Antioxidant RCA-626 is a phosphite ester stabilizer which is superior to other phosphite ester in the effective protection of polymers’ color. As a secondary antioxidant, it has good synergistic with primary antioxidant and is usually used in combination antioxidant(such as 1010, 1076) to prepare composite antioxidant which improves the thermo-stability of polymer processing.
PROPERTY: Solube in organic solvents like toluene, dichloromethane and slightly soluble in alcohol, but insoluble in water.
CHEMICAL NAME: Bis-(2,4-di-tert-butyl-pheny)-phosphiterythritol diphosphite
CHEMICAL FORMULA C33H50O6P2
CHEMICAL STRUCTURE
CAS NO.：128-37-0
MOLECULAR WEIGHT: 604
PRODUCT FORM: White powder or grains
PACKAGE & STORAGE
Package:25 kg/box with aluminium foil liners., or according to customs’ requirements.
Storage: Keep tightly sealed and stored in a cool, dry and well-ventilated area.
APPLICTION
• It is often blended with phenolic principle antioxidant (such as 1010) to prepare composite antioxidant.
• It is widely applied in PE, PP, PS, PA,PC, ABS and many other polymer materials.
• The amount to be used may be 0.1%-0.3%..
TYPICAL PROPERTIES
|
Test |
Specification |
|
Assay (%) |
Min. 95.00 |
|
Melting Point (℃) |
170.0-180.0 |
|
Volatile (%,80.0℃) |
Max. 1.0 |
|
Acidity (mgKOH/g) |
Max. 1.0 |
|
Free 2,4-di-tert-butyl-phenyl (%) |
Max. 1.0 |
NOTE
The above information is provided as guidelines only. It is important that the customer evaluate any product in their own resin system to determine suitability.