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[Chemical Knowledge]：The difference between acetic anhydride and glacial acetic acid

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Acetic anhydride and glacial acetic acid are common chemicals in our lives, and they have some differences in chemical properties. Acetic anhydride is an ester compound with the molecular formula (CH3CO)2O. It is commonly used as a raw material for organic synthesis, and can also be used for esterification and esterification of esters in organic synthesis reactions. Glacial acetic acid is an organic acid, the chemical name is acetic acid, the molecular formula is CH3COOH, the common use is as a solvent and reagent, can also be used for food additives and some chemical experiments. Acetic anhydride and glacial acetic acid have some similarities in structure, but there are obvious differences in nature and use. Acetic anhydride is a colorless liquid with a pungent odor, which is volatile and irritating to the skin and eyes, while glacial acetic acid is a colorless liquid with a pungent odor, which is more volatile and also irritating to the skin and eyes. Acetic anhydride and glacial acetic acid in the use of a larger difference, acetic anhydride is mainly used in organic synthesis reactions, and glacial acetic acid is commonly used in chemical experiments and some industrial production. To sum up, although acetic anhydride and glacial acetic acid have certain similarities in structure, they have obvious differences in properties and uses. We need to choose suitable chemicals according to specific needs when using them.

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