Leadstab® AO 9228

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Leadstab^® AO 9228

Leadstab AO 9228 is a high-performance phosphite-based secondary antioxidant that offers excellent thermal stability, high-temperature resistance, hydrolytic stability, and low volatility. It effectively controls color and melt flow index (MFI) under extreme processing and service conditions.
CAS number: 154862-43-8

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Product Description

Chemical name :	Bis(2,4-dicumylphenyl) pentaerythritol-diphosphite
CAS number :	154862-43-8
Formula :	C₅₃H₅₈O₆P₂
M.W. :	852.97
Chemical structure :

Leadclear<sup>®</sup> AO 9228

Specification

Appearance	White powder
Melting point	225.0-246.0°C
Acid value	1.0 mgKOH/g max
Volatility	0.50% max
Ash	0.10% max
2,4-dicumylphenol	0.50% max

Application

Leadstab AO 9228 is phosphite-based secondary antioxidant with excellent thermal stability. In addition, it can effectively control color and melting index in extreme environments, due to its high phosphorus content, high temperature resistance, hydrolytic stability and low volatility. It also exhibits high antioxidation efficiency when used alone.

It delivers good color protection and thermal stability even after being exposed to a highly humid or high-temperature environments. Leadstab AO 9228 is recommended for use with engineering plastics, and also suitable for polymers, such as PP, PE, nylon, ABS, PMMA.