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Acetic acid and acetic acid are both common organic acids, and they have certain differences in chemical structure and properties, so there are also differences in their applications

Differences in chemical structure. The chemical formula of glacial acetic acid is CH3COOH · H2O, which is a physical mixture of acetic acid and water, and its chemical properties are similar to those of acetic acid. The chemical formula of acetic acid is CH3COOH, which is a pure acid and the main component of acetic acid in glacial acetic acid

Differences in physical properties. Acetic acid is a colorless liquid that crystallizes into a solid at low temperatures. It has a relatively low melting point and can crystallize at 16.6 degrees Celsius, hence its name glacial acetic acid. Acetic acid is a colorless liquid with a relatively high melting point, and it only solidifies above 16.6 degrees Celsius

Furthermore, there is a difference in usage. Acetic acid, as a common organic acid, is widely used in industries such as food and cosmetics. It is commonly used as a seasoning and food preservative in food, and can also be used to make soy sauce, vinegar, and other seasonings. In cosmetics, acetic acid can be used as a solvent, adjust pH value, etc. And acetic acid is more common in industry. It is an important solvent and medium for dyes, synthetic fibers, antifreeze, etc. It can also be used to prepare organic compounds such as acetate and acetate esters

To sum up, although there are differences in chemical structure and properties between glacial acetic acid and acetic acid, they both have their own application areas. Acetic acid is more commonly used in food and cosmetics, while glacial acetic acid is more widely used in industrial fields. Understanding the differences and applications of these two organic acids is valuable in both daily life and industrial production.