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[Chemical Knowledge]：Properties and uses of diphenyl phosphite

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Diphenyl phosphite is an important organic compound, which is widely used as a raw material for chemical production. This article will detail the properties and uses of diphenyl phosphite.

1. the nature of diphenyl phosphite

diphenyl phosphite is a colorless or slightly yellow transparent liquid with aromatic odor. It has a high boiling point, insoluble in water, but soluble in alcohol, ether, benzene and other organic solvents. Diphenyl phosphite has good thermal stability and is not easy to burn, but it will decompose at high temperature to produce toxic gases. In addition, diphenyl phosphite is corrosive and toxic and needs to be properly stored and used.

2. The use of diphenyl phosphite

1. Plastic additive
diphenyl phosphite can be used as a plastic additive to improve the flame resistance, heat resistance and mechanical properties of plastics. It reacts with the polymer in the plastic to form a cross-linked structure, thereby improving the physical and chemical properties of the plastic.
2. Intermediate
of synthetic resins Diphenyl phosphite can be used as an intermediate of synthetic resins for the production of unsaturated polyester resins, epoxy resins, etc. These resins have good chemical resistance, heat resistance and electrical insulation, and are widely used in chemical industry, electronics, construction and other fields.
3. Flame retardant
Diphenyl phosphite can be used as a flame retardant to improve the flame retardant properties of materials. It reacts with substances in the material to produce phosphoric acid compounds that are not easy to burn, thereby preventing the spread of flames.
4. pharmaceutical intermediates
diphenyl phosphite can be used as pharmaceutical intermediates for the production of anti-tuberculosis drugs, antibacterial drugs. These drugs play an important role in the treatment of tuberculosis and infectious diseases.

In short, as an important raw material for the production of chemical products, diphenyl phosphite has a wide range of applications in the fields of plastic additives, synthetic resin intermediates, flame retardants and pharmaceutical intermediates. In the process of use, it is necessary to pay attention to its corrosiveness and toxicity, and take proper storage and use measures to ensure production safety.

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