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[Chemical Knowledge]：Ethanol, acetaldehyde and acetic acid, deciphering the difference between the three

Read： 571 Time：19months ago Source：Transform the World with Simplicity

Ethanol, acetaldehyde and acetic acid are three common compounds in organic chemistry. Their molecular formula is C2H4O, but there are differences in molecular structure and properties.

from the molecular structure, ethanol, acetaldehyde and acetic acid configuration differences. The molecular structure of ethanol (ethyl alcohol) contains a hydroxyl group (OH), the molecular structure of acetaldehyde (acetaldehyde) has a carbonyl group (C = O), and the molecular structure of acetic acid (acetate) contains both hydroxyl and carbonyl groups. This difference leads to differences in their nature and use.

In nature, ethanol, acetaldehyde and acetic acid have different chemical properties. Ethanol is a colorless liquid with the taste of alcohol and is soluble in water and organic solvents. Acetaldehyde is a colorless liquid, pungent odor, volatile. Acetic acid is a colorless liquid with a pungent odor, soluble in water and organic solvents. In the chemical reaction, ethanol can occur esterification reaction, oxidation reaction and dehydration reaction; acetaldehyde has strong oxidation, can occur reduction reaction and acid-base neutralization reaction; acetic acid can be used as acid to participate in acid-base reaction, can also participate in the esterification reaction in the form of ester.

From the use point of view, ethanol, acetaldehyde and acetic acid have different applications in industry and daily life. Ethanol is commonly used as a solvent, fuel, and disinfectant. Acetaldehyde has a pungent odor, is used as a solvent and chemical reagent, and can also be used to prepare other organic compounds. Acetic acid is widely used in dyes, coatings, plastics, food and medicine, and is also an important chemical raw material.

In summary, ethanol, acetaldehyde and acetic acid are different in molecular structure, properties and uses. Understanding their differences will help us to better understand and apply these organic compounds.

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