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[Chemical Knowledge]：Properties and uses of glycerol

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Glycerol, also known as glycerin, is a colorless, odorless, viscous liquid. It has a wide range of uses in the field of chemical production raw materials, mainly due to its unique physical and chemical properties.

1. properties of glycerol

1. physical properties: glycerol is a colorless, transparent, odorless, viscous liquid, with hygroscopic. It can be arbitrarily miscible with water, ethanol and other solvents, but insoluble in chloroform, carbon tetrachloride, carbon disulfide, benzene, oils and other solvents. Glycerol has a high viscosity, a high surface tension, and a high boiling point, which is not volatile.

2. chemical properties: glycerol has a strong reducibility, easy to be oxidized to generate pyruvic acid, oxalic acid and other compounds. In addition, glycerol also has the chemical properties of alcohol hydroxyl, can occur esterification, etherification, nitrile, ring and other reactions.

2. the use of glycerol

in the field of chemical production of raw materials, glycerol has a wide range of uses, the following is its main application areas:

1. moisturizing agent: glycerol has a strong hygroscopicity, can be used as a moisturizing agent for cosmetics, skin care products and other products, to help maintain skin moisture.

2. sweetener: glycerol has a sweet taste, can be used as a sweetener in food, improve the taste of food.

3. solvent: glycerol can be used as a solvent for the production of inks, dyes and other products.

4. synthetic intermediates: glycerol can be used as a synthetic intermediate for the production of epoxy resin, polyurethane and other products.

5. pharmaceutical raw materials: glycerol can be used as pharmaceutical raw materials for the production of drugs, such as glycerin suppositories for the treatment of constipation.

In short, glycerol as an important chemical raw material, has a wide range of applications in various fields. Due to its unique physical and chemical properties, the position of glycerol in the field of chemical production raw materials can not be ignored.

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