99% Purity Tetrahydrophtalic Anhydride THPA

Product Information

Pesticide Intermediates Tetrahydrophthalic Anhydride

Properties of tetrahydrophthalic anhydride:
Tetrahydrophthalic Anhydride is a solid, colorless and transparent. It is insoluble in water at room temperature, but soluble in organic solvents such as alcohols and ethers.
Tetrahydrophthalic Anhydride has a melting point of 124-125°C and a boiling point of 315°C. It is stable at high temperatures.
Tetrahydrophthalic Anhydride has a certain stability, but the reaction of decomposition and oxidation may occur at high temperature, sunlight irradiation or exposure to oxygen.
Uses of tetrahydrophthalic anhydride:
1.Tetrahydrophthalic Anhydride is widely used in organic synthesis, is an important chemical intermediate, generally used in the production of alkyd resins, unsaturated polyester resins and coatings.
2.Tetrahydrophthalic Anhydride can be used to produce anhydrides, esters, ethers and other compounds.
3.Tetrahydrophthalic Anhydride can be used as stabilizers, catalysts, plasticizers, dyes and raw materials of polymer materials.
4.Tetrahydrophthalic Anhydride can be used as curing agent for epoxy resin, insecticide, vulcanization regulator and surfactant.
5.Tetrahydrophthalic Anhydride is used as raw material for the production of unsaturated polyester resin, mainly used to improve the air-drying performance of the resin, especially used in the production of high-grade fat putty and air-drying coatings.
6.Tetrahydrophthalic Anhydride can be used as the modifier of alkyd resin, epoxy resin curing agent, unsaturated polyester resin, pesticide and pharmaceutical raw materials.
Method of Preparation:
The preparation of Tetrahydrophthalic Anhydride is generally obtained by esterification of cis-1,2,3,6-tetrahydroxyphthalic acid.
Specific methods include adding the esterifying agent to the solid or solution, reacting with heat and purifying by distillation.
Safety Information:
1. Tetrahydrophthalic Anhydride is generally a low toxicity substance under normal conditions of use.
2. During operation, take care to avoid contact with skin and eyes and try to maintain a well ventilated environment.
3. During storage and transportation, avoid contact with oxidizing agents, strong acids and other substances, as well as pay attention to moisture-proof and fire prevention.

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(1)Polymers：Polymerisation is the process by which the repeating units that make up a polymer are linked together by covalent bonds.Polymers can exist in different states depending on the phase, conformation and arrangement of their molecular chains. The two main states are amorphous and crystalline. Polymers usually exist in a semi-crystalline form in which amorphous and crystalline phases coexist.

(2)Catalysts And Auxiliaries：The catalyst is the active component that really acts as a catalyst and reduces the activation energy of the reaction. The additives, on the other hand, are auxiliary components, either structural additives or electronic additives, which can improve the stability of the catalyst, while the electronic additives can modulate the electronic properties of the catalyst.Our main Catalysts and Additives products include Plastic Additives、Water Treatment Agent.