Hydrochloric acid

Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungent smell. It is classified as a strong acid.

It is a component of the gastric acid in the digestive systems of most animal species, including humans.
Hydrochloric acid is an important laboratory reagent and industrial chemical.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0

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