Molecolar Weight: 683.18

CAS NO:693-36-7

Physical Properties: white ,crystalline powder or grain; insoluble in water, soluble in benzene and toluene.

Uses: DSTDP is a good auxiliary antioxidant and is widely used in polypropylene, polyethylene, polyvinyl chloride, ABS rubber and lubricating oil. It has high-melting and low-volatility .It can be used in combination with phenolic antioxidants and ultraviolet absorbers to produce synergistic effect.

Quality Specifications:

　　　　　appearance: white, crystalline powder or grain

　　　　　M.P:63.5-68.5℃

　　　　　ash:≤0.05%（wt）

　　　　　acid value:≤0.10mgKOH/g

　　　　　molten colour: ≤60（pt-co）

　　　　　saponificating value: 160-170mgKOH/g

　　　　　heating: ≤0.05%（wt）

Storage: DSTDP should be stored in a cool, dry and ventilated place and be kept away from moisture and heat.