Ethanoic acid
- Ethanoic Acid
Ethanoic acid, also known as acetic acid, is a carboxylic acid with the chemical formula CH₃COOH. It is a colorless liquid with a distinctive sour taste and pungent smell. Ethanoic acid is the main component of vinegar, apart from water, and is used widely in the chemical industry.
Chemical Properties[edit | edit source]
Ethanoic acid is a weak acid, meaning it only partially dissociates in aqueous solution. It has a pKa value of about 4.76, indicating its acidity. The molecule consists of a methyl group attached to a carboxyl group.
Production[edit | edit source]
Ethanoic acid can be produced by the oxidation of ethanol or by the carbonylation of methanol. The latter process is the most common industrial method, known as the Monsanto process.
Uses[edit | edit source]
Ethanoic acid is used in the production of polyvinyl acetate for wood glue, as well as synthetic fibers and fabrics. It is also a key component in the production of esters, which are used in solvents and flavorings.
Biological Role[edit | edit source]
In biochemistry, ethanoic acid is an important metabolite in the citric acid cycle, which is crucial for cellular respiration. It is also involved in the synthesis of acetyl-CoA, a central molecule in metabolism.
Safety[edit | edit source]
While ethanoic acid is generally safe in low concentrations, concentrated solutions can be corrosive and should be handled with care. It can cause skin irritation and eye damage upon contact.
See Also[edit | edit source]
References[edit | edit source]
External Links[edit | edit source]
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Contributors: Prab R. Tumpati, MD
