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[Chemical Knowledge]：Pyruvic acid and citric acid, do you know the difference between them?

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Pyruvic acid and citric acid are two common organic acids that are widely used in the chemical and food industries. Although they all have the word "acid" in their names, they have obvious differences in chemical composition and properties. The chemical name of

pyruvic acid is propanedione dicarboxylic acid, the molecular formula is C3H4O4, is an acidic organic compound. Pyruvate has a sour taste and is commonly found in fruit and wine. The chemical name of citric acid is 3-hydroxy-3-methylglutaric acid, and its molecular formula is C6H8O7. It is also an organic acid commonly found in lemons and other citrus fruits. Although both are organic acids, pyruvic acid is a carboxylic acid containing a ketone group, while citric acid is a carboxylic acid containing a hydroxyl group, so they are structurally different.

pyruvic acid and citric acid also differ in properties and uses. Pyruvic acid is usually used as a chemical raw material in industry, can be used to synthesize other organic compounds, and can also be used as a food additive. Citric acid is a commonly used food acid, with obvious sour taste, can increase the taste and taste of food. Therefore, citric acid in the food industry has a wide range of applications, commonly used in beverages, jam, candy and other food manufacturing.

In addition to this, the differences in chemical structure between pyruvic acid and citric acid have led to their different applications in biology and medicine. Citric acid is often used in food preservation because of its antioxidant and preservation properties. Pyruvate, on the other hand, has a diuretic effect in the medical field and can help excrete excess water from the body, so it is often used to treat edema symptoms.

To sum up, pyruvic acid and citric acid are two common organic acids, which have obvious differences in chemical composition, properties and uses. Understanding the characteristics of pyruvic acid and citric acid will help us to better understand their applications in the chemical and food industries, and to be able to select and use these chemicals more rationally.

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