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Organic Intermediate/Raw materials

Triphenyl phosphite CAS 101-02-0 TPPI

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Product Details

Chemical Name: Triphenyl phosphite; TPPI

Synonyms: Phosphorous acid triphenyl ester

Molecular Structure:

Product Typical Properties

Items Specification
Cas No 101-02-0
Molecular Formula C18H15O3P
Molecular Weight 310.29
Appearance Colorless to light yellow liquid
Acid value 0.5%max
Cl- 0.2%max
Freezing point ℃ 19-24



TPPI is an auxiliary antioxidant with light stabilization effect, suitable for polyvinyl chloride, polypropylene, polystyrene, polyester, ABS resin, epoxy resin, etc. It can maintain transparency of its products and suppress color changes; It can also be used as a plasticizer for fiber films, with excellent transparency and water resistance; Used in engineering plastics and phenolic resins, when combined with halogenated flame retardants, it can exert flame retardancy and oxygen resistance, while also possessing photostability; It is also an important intermediate for the production of trialkyl phosphite.

Product Usage

TPPI is widely used in various PVC products, which can maintain their transparency and suppress color changes. At the same time, it can increase the oxygen resistance and light and thermal stability of the main stabilizer. In addition, this product is also used in products such as PE, PP, ABS, SBS, and can be used as an intermediate for pesticides. Raw materials for synthesizing alkyd resins and polyester and polyester resins.


Product Packaging



Product Storage

Please store in a dry, cool and dark place



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