Phosphite antioxidants react with hydroperoxides to produce non-radical products and are therefore often termed ‘hydroperoxide decomposers. They differ from primary phenols and amines in that they are decomposed by reaction with the hydroperoxide, rather than containing it.
Phosphite antioxidants are particularly useful in synergistic combinations with primary phenolic antioxidants.
| Grade | cas number | Application |
| BX AO 1500 | 96152-48-6 | For PVC, PP, PE |
| BX AO 168 | 31570-04-4 | hydrolytically stable phosphite, most widely used, replace basf irgafos 168 |
| BX AO 4500 | 13003-12-8 | Phenol-Free Phosphite Antioxidants for PVC/ABS/SBS |
| BX AO 618 | 3806-34-6 | ABS, Styrenics, replace SI ultranox 618 |
| BX AO 626 | 26741-53-7 | high-performance phosphite antioxidant for engineering plastics,replace SI ultranox 626 |
| BX AO 9228 | 26741-53-7 | For Engineering plastics, replace Doverphos S-9228 |
| BX AO DHOP | 80584-86-7 | For PVC |
| BX AO DPDP | 26544-23-0 | PVC, Resins |
| BX AO DPOP | 26401-27-4 | PVC, Polymers, PP |
| BX AO DPD | 26544-27-4 | PVC, Polymers |
| BX AO DPP | 4712-55-4 | unsaturated polyesters, PVC |
| BX AO H10 | – | Nylon, replace BRUGGOLEN H10. |
| BX AO PEPQ | 119345-01-6 | For Engineering plastics, replace HOSTANOX PEPQ |
| BX AO PEP-36 | 80693-00-1 | For Engineering plastics, replace Adk stab pep-36 |
| BX AO PDDP | 25550-98-5 | PVC, Polymers |
| BX AO PDP | 80584-86-7 | PVC, Polymers |
| BA AO TDD | 80584-85-6 | PVC, Polymers |
| BX AO TDP | 25448-25-3 | PVC, ABS, Polymers |
| BX AO TLP | 3076-63-9 | PVC, Polymers |
| BX AO TPPI | 101-02-0 | PVC, Polymers |
| BX AO TTDP | – | PVC, Rubber, Polymers |
Please contact our online sales or mail at info@additivesforpolymer.com for a sample and general inquiries.
Antioxidant BX AO 168 Chemical Name: Tris -(2,4-di -tert -butyl -phenyl )-phosphite Formula C42H63O3P Molecular Weight 647 CAS# 31570-04-4 Specification: Appearance White powder Content of 2,4-di-tert-butyl-phenyl Max.0.20% Melting point 183.0-187.0℃ Volatilizing Max.0.30% Solubility（20℃） Acetone 1 Chloroform 36 Cyclohexane 16 Ethanol 0.1 Ethyl acetate 4 n-Hexane 11 Methanol < 0.01 Dichloromethane 36 Toluene 30…
