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[Chemical Knowledge]：The difference between acetic acid and glacial acetic acid: different chemical structures and uses

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Acetic acid and glacial acetic acid are common organic acids, which have some differences in chemical structure and use. From the chemical structure, the molecular formula of acetic acid is CH3COOH, and the molecular formula of glacial acetic acid is CH3COOH. From the molecular structure, both contain ethyl and carboxyl groups, but glacial acetic acid also contains a hydroxyl group. This different molecular structure leads to differences in their physical and chemical properties. Acetic acid at room temperature is a colorless liquid, pungent odor, volatile. And glacial acetic acid at room temperature for solid, colorless and transparent, acid, soluble in water. In terms of chemical properties, acetic acid is mainly used in acetate fiber and acetate fiber manufacturing, while glacial acetic acid is mainly used in organic synthesis and dye industry. Acetic acid and glacial acetic acid also differ in use. Acetic acid is a common food additive in our life, which is used in food curing and preservation. At the same time, acetic acid can also be used as a solvent and an intermediate in organic synthesis. Glacial acetic acid is mainly used in the field of organic synthesis, as an extractant and solvent. In general, acetic acid and glacial acetic acid have some differences in chemical structure and use, and these differences also lead to their different applications in industry and life.

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