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[Chemical Knowledge]：What are the upstream raw materials for acetic anhydride? What do the downstream products contain?

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Acetic anhydride plays an important role in the field of chemical production raw materials, and its upstream and downstream related products are extensive. This article will detail the upstream and downstream associated products of acetic anhydride.

1. the upstream product of acetic anhydride

1. Acetic acid: Acetic acid is the main raw material for the production of acetic anhydride, which can be produced by the oxidation reaction of acetic acid. Acetic acid is a common organic acid, which is widely used in chemical industry.
2. Natural gas: Natural gas is one of the main raw materials for acetic acid production, which can be produced by partial oxidation of natural gas. Therefore, the supply and price of natural gas have a significant impact on the production cost of acetic anhydride.

2. the downstream products of acetic anhydride

1. Cellulose acetate: acetic anhydride can react with cellulose to produce cellulose acetate, which is an important cellulose ester compound with good heat resistance, weather resistance, Chemical corrosion resistance and other characteristics, can be used in the manufacture of film, photographic film, rayon, plastics, etc.
2. Ethyl acetate: Acetic anhydride can react with ethanol to produce ethyl acetate, which is a common organic solvent and can be used in the production of coatings, inks, artificial leather and other fields.
3. Acetamide: Acetic anhydride can react with ammonia to form acetamide, which is an important organic intermediate and can be used to manufacture drugs, dyes, pesticides, etc.
4. Acetic anhydride derivatives: Acetic anhydride can also be used to produce a series of acetic anhydride derivatives, such as isopropenyl acetate, phenyl acetate, butyl acetate, etc., these compounds in medicine, pesticides, spices and other fields have a wide range of applications.

To sum up, the upstream and downstream related products of acetic anhydride are extensive, involving many fields, such as chemical industry, medicine, pesticide, spice and so on. Therefore, the production and application of acetic anhydride plays an important role in promoting the development of the national economy. At the same time, it is also necessary to pay attention to the environmental problems and safety risks that may be brought about in the production and use of acetic anhydride, strengthen production management and safety measures, and protect the health and life safety of the people.

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