What Acid Is in Vinegar?

Vinegar Chemical Composition

Acetic acid is also known as ethanoic acid.
Acetic acid is also known as ethanoic acid. Cacycle, Wikipedia Commons

What acid is in vinegar? Vinegar contains 5-10% acetic acid, one of the weak acids. Acetic acid is produced by the fermentation process used to make vinegar. Most of the remainder of the liquid is water. Vinegar may also contain sweeteners or flavorings added after the fermentation process.

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Helmenstine, Anne Marie, Ph.D. "What Acid Is in Vinegar?" ThoughtCo, Oct. 5, 2017, thoughtco.com/what-acid-is-in-vinegar-603637. Helmenstine, Anne Marie, Ph.D. (2017, October 5). What Acid Is in Vinegar? Retrieved from https://www.thoughtco.com/what-acid-is-in-vinegar-603637 Helmenstine, Anne Marie, Ph.D. "What Acid Is in Vinegar?" ThoughtCo. https://www.thoughtco.com/what-acid-is-in-vinegar-603637 (accessed January 22, 2018).