Reference Terms
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Hydrochloric acid

The chemical substance hydrochloric acid is the aqueous (water-based) solution of hydrogen chloride (HCl) gas.

It is a strong acid, the major component of gastric acid and of wide industrial use.

As a highly corrosive liquid, hydrochloric acid should be handled only with appropriate safety precautions.

Note:   The above text is excerpted from the Wikipedia article "Hydrochloric acid", which has been released under the GNU Free Documentation License.
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