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hydrochloric acid
−27.32 °C (247 K)
38% solution.
Trivia about hydrochloric acid
Before it's galvanized, iron is cleaned with this very caustic acid
Diluted in water, this chemical, HCI, can be used to dissolve calcite deposits on specimens
Helicobacter pylori has special defenses against this acid, which allow it to live in the stomach & cause ulcers
The sticky alkaline mucus on your stomach's wall is there to protect it from this corrosive acid
Alcohol causes the stomach to secrete this acid, HCl; drink too much & the body tells the stomach to get rid of it
One should be careful with this substance, formula HCl
(Sarah of the Clue Crew burns one in from Volcanoes NationalPark, Hawaii.) Volcanic fumes can be hazardous to your health: they contain sulfuric acid, glass particles & this, HCl