Tris(2,4-ditert-butylphenyl) phosphite CAS NO.31570-04-4

Molecular Weight 646.9 CAS Number 31570-04-4 Specification Criterion Requirement Appearance White, free-flowing powder Volatiles 0.3% max…

Molecular Weight 646.9 CAS Number 31570-04-4 Specification Criterion Requirement Appearance White, free-flowing powder Volatiles 0.3% max Color of solution clear solution (10g in 100 ml toluene) Transmittance at 425 nm 97.0% min (10g in 100 ml toluene) at 500 nm 98.0% min Content of 2,4-di-tert-butylphenol 0.4% max Content of phosphate 0.5% max Assay 99.0% min Physical Properties Melting range (℃) 183-187 3 Specific gravity (20℃) 1.03 g/cm Bulk density 480-570 g/l Solubility (20℃) g/100g solution Acetone 1 Benzene 34 Chloroform 36 Cyclohexane 16 Ethanol 0.1 Ethyl acetate 4 n-Hexane 11 Methanol <0.01 Methylene Chloride 36 Toluene 30 Water <0.01 Weight loss (TGA, in air at 20℃/min) Temp.(℃) at 1 % weight loss 230 Temp.(℃) at 10 % weight loss 260 Applications EVERFOS-168 is a hydrolytically stable phosphite processing stabilizer as a secondary antioxidant. It reacts during processing with hydroperoxides formed by autoxidation of polymers preventing process induced degradation. EVERFOS-168 reacts with hydroperoxides to yield non-radical products, therefore called hydroperoxide decomposer. EVERFOS-168 is synergistically combined with other primary antioxidant such as EVERNOX-10 and EVERNOX-76 for applied used in polyolefins or olefin-copolymers such as HDPE, LLDPE, PP, EVA as well as PC, PA. The blends can also be used in engineering plastics such as PBT, PET, and styrenics, elastomers like PS, ABS, BR, SBS and tickifier resins, adhesives. EVERFOS-168 protects polymers which are prone to oxidation during processing steps (compounding, pelletizing, fabrication and recycling) from molecular weight change (e.g. chain scission of PP, crosslinking of PE) and prevent discoloration. Hydrolytic Stability Unlike other organic phosphites, EVERFOS-168 shows no water absorption even after 4 months storage at 20℃ and 80% relative humidity. Handling & Safety EVERFOS-168 should be handled with care and prevent contamination of the environment. Avoid dust formation and ignition sources. For more detailed information please refer to the material safety data sheet. Packing The following packages are available upon customer’s request： (1) 25 kgs×2 PE bags in a carton box. (2) 50 kgs fiber drum. (3) Other specific request. Transportation EVERFOS-168 is not a dangerous goods according to the transportation regulations. Storage EVERFOS-168 be stored under suitable conditions (dry & cool). Maximum recommended storage time from the date of analysis：24 months.