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[Chemical Knowledge]：Properties and Uses of Glacial Acetic Acid

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Glacial acetic acid, also known as pure acetic acid or acetic acid, is an important organic chemical raw material and has a wide range of applications in the field of chemical production. This article will discuss in detail the properties of glacial acetic acid, production methods and applications in different fields.

1. the nature of glacial acetic acid

glacial acetic acid is a colorless, transparent, strong pungent odor of the liquid. Its molecular formula is C2H4O2, and its structure is CH3COOH. Glacial acetic acid has strong acidity and can react with alkali, metal, metal oxide, etc. In addition, glacial acetic acid is flammable and volatile, and can be miscible with water, ethanol, ether and other solvents.

2. glacial acetic acid production method

glacial acetic acid production method mainly includes acetaldehyde oxidation, low carbon alkane oxidation method and ethanol oxidation method. Among them, acetaldehyde oxidation method is the main method of producing glacial acetic acid at home and abroad, and its principle is to oxidize acetaldehyde to acetic acid under the action of catalyst.

3. application of glacial acetic acid

1. food industry: glacial acetic acid in the food industry as an acidulant and preservative. It can enhance the taste of food, and has a certain antibacterial effect, which helps to extend the shelf life of food.
2. Pharmaceutical industry: glacial acetic acid is used as raw material and solvent in the pharmaceutical industry for the production of various drugs, such as vitamins, antibiotics, etc.
3. Dye industry: glacial acetic acid is used as mordant and solvent in the dye industry, which helps to improve the dyeing effect and color brilliance of the dye.
4. Plastics industry: Glacial acetic acid is used as a plasticizer and raw material for manufacturing plastics in the plastics industry, which can improve the performance and processing performance of plastics.
5. Fine chemicals: Glacial acetic acid has a wide range of applications in the field of fine chemicals and can be used to produce various chemicals, such as ethyl acetate, acetic anhydride, etc. Precautions for storage and transportation of

4. glacial acetic acid

Because glacial acetic acid is irritating and corrosive, special attention should be paid during storage and transportation. Should be stored in a cool, ventilated warehouse, away from fire and heat sources. During transportation, leakage and impact shall be prevented, and mixed transportation with oxidants, alkalis and other substances shall be avoided.

In conclusion, as an important organic chemical raw material, glacial acetic acid has a wide range of applications in the field of chemical production. Understanding the properties, production methods and applications of glacial acetic acid will help to improve the production efficiency and product quality of chemical products, and promote the sustainable development of the chemical industry.

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