1. Antioxidant 168
2. A kind of high-effective solid phosphite ester antioxidant,which is superior to other phosphite ester
Name :Antioxidant 168
Chemical Name: Tris-(2.4-di-t-butylphenyl)- phosphite
Molecular Weight:646
Molecular Formula: C42H63O3P
Specifications:
Item | Requirements |
Appearance | White crystalline powder |
Melting Point | 183~187 |
Purity | ≥99.0% |
Transmission | 425nm ≥98% |
500nm ≥98% | |
Acidity (mg KOH/g) | ≤0.3% |
Volatiles | ≤0.5% |
Solubility | Clear solution |
Hydrolyzing Time (h) | 14 |
free2,4-di-tert.-butyl-phenol,wt% | ≤0.2 |
Properties:
The appearance is the white crystallization powder 182 of point - 186. 5 degrees Centigrade Flash point is 257 degrees Centigrade Apt to is it on toluene , two chlorine methane ,etc. organic solvent , is it on ester type , dissolve on ink to dissolve a little to dissolve.
Applications:
The product 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 AT-10) 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.
Storage:
Protection from moisture and heat is needed.
Packaging:
Packaging: cardboard boxes with plastic liners, net weight: 25Kg / box.
Reference dosage:
0.1%-0.3%
Period of Validity:
Normally 24 months
