LeNOX – ANTIOXIDANT 168
Technical Data Sheet
Chemical Name: Tris(2,4-di-t-butylphenyl)phosphite
Molecular formula: C42H63O3P
Molecular Weight: 646
CAS NO.: 31570-04-4
Chemical Structure Formula:

Introduction :
LeNOX – Antioxidant 168 is a hydrolytically stable phosphite processing stabilizer. which can reaction with hydroperoxides of polymers preventing process induced degradation and extending the performance of primary antioxidants.
LeNOX – Antioxidant 168 is most demanding antioxidant in india & other countries.
Physical Properties :
| Appearance | White to off-white powder |
| Melting Range | 183-187℃ |
| Purity | ≥99% |
| Acid value (mg KOH/g) | ≤0.3 |
| Light Transmittance 425nm 500nm | ≥98% ≥98% |
| Volatiles | ≤0. 3% |
| Hydrolyze time (h) | ≥14 |
| 2,4-t-butyl-phenol (%) | ≤0.2 |
Solubility: (At 20℃g/100ml solvent) :
| Water | Insoluble |
| Benzene | 34 |
| Acetone | 1 |
| Ethyl Acetate | 4 |
Solubility: (At 20℃g/100ml solvent)
| Water | Insoluble |
| Benzene | 34 |
| Acetone | 1 |
| Ethyl Acetate | 4 |
Applications:
LeNOX® – Antioxidant 168 is a kind of high-effective solid phosphite ester secondary antioxidant, which is superior to other phosphite ester in the effective protection of polymers’ color. LeNOX® – Antioxidant 168 often blended with phenolic principal antioxidant ( LeNOX® 1010) 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. In india LeNOX® – Antioxidant 168 use in masterbatch and polymer compounding.
Package:
Net 25KGS/two-layer PE bag in carton/drum, or as required.