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[Chemical Knowledge]：Properties and Uses of Glycolic Acid

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Glycolic acid, also known as glycolic acid or glycolic acid, is an organic compound with a variety of important properties and uses. In the field of chemical production raw materials, glycolic acid plays an important role, because of its unique chemical properties, it is widely used in various industrial production and scientific experiments.

1. the properties of glycolic acid

1. Physical properties: Glycolic acid is a colorless to slightly yellow transparent liquid with a strong pungent odor. It can be miscible with water, ethanol, ether and other solvents, but not easily soluble in benzene, chloroform and other non-polar solvents.
2. Chemical properties: Glycolic acid is a weak acid, acidic, can react with alkali to form a salt. In addition, glycolic acid also has the nature of alcohol hydroxyl, can occur esterification, etherification and other reactions.

2. the use of glycolic acid

1. Surfactant: Glycolic acid can be used as a surfactant for the preparation of emulsions, foam fire extinguishing agents, etc. Due to its good wettability and foaming properties, the surface activity of the liquid can be improved, making it easier for the liquid to be uniformly dispersed in another phase.
2. Preservative: Glycolic acid can be used as a preservative for food, cosmetics and other products to extend the shelf life of the product. Because it has the effect of inhibiting the growth of bacteria, it can effectively prevent the deterioration of the product.
3. Pharmaceutical intermediates: Glycolic acid can be used as pharmaceutical intermediates for the synthesis of various drugs. For example, it can be used to synthesize antibiotics, anticancer drugs, etc., and has important medicinal value.
4. Cleaning agent: Glycolic acid can be used as a metal surface cleaning agent to remove oil and oxides on the metal surface. Because of its acidity, it can react with metal oxides to form soluble salts, thus achieving the cleaning effect.

In short, glycolic acid has a wide range of applications in the field of chemical production raw materials. Due to its unique properties and uses, it is widely used in various industrial production and scientific experiments. When using glycolic acid, it is necessary to pay attention to its irritation and corrosiveness, and take necessary protective measures to ensure production safety.

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