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[Chemical Knowledge]：Properties and Uses of p-Phenyl Phenol

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P-phenylphenol (p-Phenylphenol, PPP) is an important chemical raw material with unique properties and wide applications. In this paper, the properties, synthesis methods, application fields and market prospects of p-phenylphenol are introduced in detail.

1. Properties of p-Phenylphenol

p-Phenylphenol is a white to pale yellow crystalline solid with a distinctive odor. Its molecular structure is composed of two benzene rings connected by an oxygen atom, which has high stability. P-phenylphenol has a high melting point of 122-125 ° C and a boiling point of 270 ° C. It is insoluble in water, but soluble in organic solvents such as ethanol and ether. In addition, p-phenylphenol has strong antioxidant and antibacterial properties, and has strong chelating ability to metal ions. Synthesis method of

2. p-phenylphenol

p-phenylphenol can be synthesized by various methods, such as chlorination method, sulfonation method, benzoic acid method, etc. Among them, the chlorination method is the most commonly used synthesis method, through the chlorobenzene and phenol in the catalyst under the Friedel-Crafts reaction, the generation of p-phenylphenol.

3. of the application of phenyl phenol

1. antioxidant: phenyl phenol as a highly effective antioxidant, widely used in plastics, rubber, grease and other polymer materials, effectively prolong the service life of the product.
2. Antibacterial agent: p-phenylphenol has strong antibacterial properties and can be used to produce antibacterial plastics, antibacterial fibers and other products to improve the sanitary performance of products.
3. spices and preservatives: p-phenylphenol has a special odor and can be used in the production of spices and preservatives to extend the shelf life of food.
4. Metal chelating agent: the chelating ability of phenyl phenol is strong, can be used for metal ion complexation, used in water treatment, printing and dyeing and other industries.

4. Market Prospect

With the continuous progress of science and technology, the application field of p-phenylphenol is more and more extensive, and the market demand is also increasing year by year. In the future, as people have higher and higher requirements for environmental protection and health, the application of p-phenylphenol in antioxidants, antibacterial agents and other fields will be further expanded. At the same time, with the rapid development of new materials, new energy and other fields, the market prospect of p-phenylphenol will be broader.

In short, p-phenylphenol, as an important raw material for the production of chemicals, has unique properties and a wide range of uses, and has a broad market prospect. With the continuous development of science and technology, its application fields will be further expanded, injecting new vitality into the development of the chemical industry.

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