China and Germany are the leading exporters of triphenyl phosphite (CAS 101-02-0), accounting for the largest shares of global shipments in recent years, while the United States, South Korea, and India represent the top importing countries. Triphenyl phosphite prices have remained relatively stable amid steady demand from polymer stabilizer and agrochemical intermediate applications. Exports from China have expanded modestly since 2022, while German export volumes have held steady, and U.S. imports have grown consistently—reflecting ongoing reliance on imported specialty phosphorus compounds.
Triphenyl phosphite is a colorless to pale yellow, viscous liquid at room temperature with a faint, characteristic odor and low volatility. It is an organophosphorus compound classified as a triaryl phosphite ester. Primarily used as a chemical intermediate, it serves in the synthesis of flame retardants (e.g., phosphate-based additives), plasticizers, and stabilizers for polymers such as polyvinyl chloride (PVC). It is also employed in the production of agrochemicals—including certain insecticides and herbicides—and in specialty applications within lubricant additives and catalyst systems for polymerization reactions.
(1) Triphenyl phosphite is used as chelating agents, plastics antioxidant, alkyd resin and pesticide intermediate raw material.(2) It is used for synthetic rubber and resin stabilizer, PVC antioxidant, alkyd resin and pesticide intermediate raw material.(3) Triphenyl phosphite is used as secondary antioxidants, it has effect of light stability, it is suitable for polyvinyl chloride, polypropylene, polystyrene, polyester, ABS resin, and epoxy resin. (4) It is used as chelating agent in PVC products, it can enable products to maintain transparency, and suppresse color change. It can also be used for the production of trimethyl phosphite.(5) Antioxidants, stabilizers TPPi is mainly applied to polyvinyl chloride, polyethylene, polypropylene, polystyrene, polyester, ABS resin, epoxy resin, synthetic rubber antioxidant stabilizer for PVC vinyl products as chelating agent, when the metal is as based stabilizer, coordinating with the product can reduce the harm of metal chloride(6) Chelating agent. Plastic products antioxidant. The synthesis of alkyd resins and polyester resins.(7) Chelating agent. Plastic products antioxidant. The synthesis of alkyd resins and polyester resins.(8) Chelating agent, it is widely used in all kinds of PVC products, it can enable products to maintain its transparency and suppress color change, and it can increase the antioxidant and light and heat stability of the primary stabilizer. In addition, the product is also used for PE, PP, ABS, SBS and other products, and it can be used for pesticide intermediates. It can be used for synthetic alkyd resins and polyester materials and polyester resins.
This chemical is included in Fine Chemicals. See more about what is Triphenyl phosphite and Triphenyl phosphite SDS information.
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