Antioxidant 626

• Name: Bis(2.4-di-t-butylphenyl) Pentaerythritol Diphosphite
• Molecular formula: C33H50O6P2
• Molecular weight: 604
• CAS NO.: 26741-53-7

Physical and chemical properties:

Bulk density 0.43g/mL; dust explosion concentration lower limit 0.12Kg/m3, explosive index 0.37; flash point 168℃; ignition point 421℃; easily soluble in organic solvents such as toluene and dichloromethane, slightly soluble in alcohols, insoluble in water.

Features:

Compared with ordinary phosphite antioxidants, this product has a higher phosphorus content (antioxidant active functional group) and high antioxidant activity. It is a high-performance phosphite antioxidant. The addition of SONOX 626 can effectively protect the polymer under high-temperature processing conditions and enable the polymer to obtain excellent multiple processing stability.

Nature:

Uses:

This product is a high-performance antioxidant, its antioxidant activity is better than other phosphite antioxidants, under the condition of adding half the amount of ordinary phosphite antioxidants, it can make the polymer obtain better processing stability. This product is generally not used alone, and is often used in combination with phenolic main antioxidants such as antioxidant 1010. This product is widely used in polymer materials such as PP, PE, PS, PA, PC, ABS, etc. after compounding with phenolic antioxidants. The general dosage is 0.1%-0.3%.

Packaging:

Cardboard barrel (box) lined with aluminum foil bag, net weight of each barrel (box) 25Kg. This product should be protected from moisture and heat, and the validity period is 6 months.

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