ArCH2CO2H

ArCH2CO2H, also known as acetic acid, is a clear, colorless liquid with a distinctive pungent smell. It is the simplest carboxylic acid, consisting of a methyl group (CH3) attached to a carboxyl group (CO2H). Acetic acid is widely used in various industries due to its versatility and relatively low toxicity.

In the food industry, acetic acid is a key component in vinegar, contributing to its sour taste and preservative properties. It is also used as a flavoring agent and acidulant in various food products. In the pharmaceutical industry, acetic acid is used in the synthesis of various medications and as a preservative in topical products.

In the chemical industry, acetic acid serves as a precursor for the production of acetic anhydride, vinyl acetate, and cellulose acetate. It is also used as a solvent and in the production of plastics, textiles, and other chemicals. Acetic acid is produced industrially through the fermentation of sugars or the catalytic oxidation of acetaldehyde.

Acetic acid is generally considered safe for use in food and pharmaceutical applications, but it can be irritating to the skin and eyes. It is also corrosive to metals and can cause burns. Proper handling and storage procedures should be followed to ensure safety.