antioxidant 168

ANTIOXIDANT 168 Chemical Name: Tris-(2.4-di-t-butylphenyl)- phosphiteMolecular formula C42H63O3P Molecular Weight646CAS#31570-04-4 Introduction: This product is soluble in resin and has the characteristic of low volatile, high heat resisting, pump resisting, implosion and non-discoloration. At present, it is the best processing stabitor in China. Physical Properties: Appearance: White to offwhite powder Assay:≥99%Melting Range: 183-187Acid value:(mg KOH/g)≤0.3%Light Transmittance: 425nm≥98% 500nm≥98% Volatiles:≤0. 3%Hydrolyze time:(h)≥142.4-: (%)≤0.2Solubility: (At 20g/100ml solvent) Water Insoluble Acetone 1Benzene 34 Ethyl Acetate 4Applications: 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 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. Package: Net 25KGS/two-layer PE bag in carton/drum, or as required Storage: Because of the low performance on hydrolyzing resistance, protectionfrom moisture and heat is needed. Period of Validity: About 2 years