Hydrogen chloride
Hydrogen Chloride
Hydrogen chloride (pronounced: /ˈhaɪdrədʒən ˈklɔːraɪd/) is a diatomic molecule, consisting of a hydrogen atom H and a chlorine atom Cl connected by a covalent single bond.
Etymology
The term "Hydrogen chloride" is derived from the elements that make up the compound: hydrogen and chlorine. The word "hydrogen" comes from the Greek words 'hydro' meaning water and 'genes' meaning forming - as hydrogen was first recognized in the formation of water. "Chloride" is derived from "chlorine", a term coined by Sir Humphry Davy, which comes from the Greek word 'chloros' meaning greenish-yellow, which is the color of the gas.
Properties
Hydrogen chloride is a colorless gas that forms white fumes of hydrochloric acid upon contact with atmospheric humidity. It is a strong acid and majorly contributes to the pH of gastric acid. It is also used in industry for a large number of products, such as polyvinyl chloride for pipes.
Related Terms
- Hydrochloric acid: The aqueous solution of hydrogen chloride.
- Chlorine: A chemical element with the symbol Cl and atomic number 17.
- Hydrogen: A chemical element with the symbol H and atomic number 1.
See Also
External links
- Medical encyclopedia article on Hydrogen chloride
- Wikipedia's article - Hydrogen chloride
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