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Antioxidant 168

Antioxidant 168

 

Product Name:Tris-(2.4-di-t-butylphenyl)- phosphite

Molecular formula:C42H63O3P

Molecular Weight:646

CAS#:31570-04-4

 

This product is soluble in resin and has the characteristic of low volatile, high heat resisting, pump resisting, implosion and non-discoloration.

 

Specification:

NO.

Parameters

Result

1

Appearance (25℃)

White to offwhite powder

2

Assay

≥99%

3

Melting Range

183-187℃

4

Acid value:(mg KOH/g)

≤0.3%

5

Light Transmittance:

425nm≥98%
500nm≥98%

6

Volatiles

≤0. 3%

 

 

Applications:Antioxidant 168 is a kind of 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 1010) to prepare com-posite 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.

 

Packing: Net 25kg/ drum or carton lined with PE bag

 

Storage: Protection from moisture and heat.

 

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