Chlorine in its natural state

Chlorine is the chemical element with atomic number 17 and symbol Cl. It is a halogen, found in the periodic table in group 17 (formerly VII, VIIa, or VIIb). As the chloride ion, which is part of common salt and other compounds, it is abundant in nature and necessary to most forms of life, including humans. In its elemental form (Cl2 or "dichlorine") under standard conditions, chlorine is a powerful oxidant and is used in bleaching and disinfectants, as well as an essential reagent in the chemical industry. As a common disinfectant, chlorine compounds are used in swimming pools to keep them clean and sanitary. In the upper atmosphere, chlorine-containing molecules such as chlorofluorocarbons have been implicated in the destruction of the ozone layer.

During World War I, chlorine gas, known as "bertholite", was a weapon of the battlefield, introduced by Germany at the Second Battle of Ypres in 1915, and quickly spread to both sides. It was eventually replaced with harsher gases.


Chlorine Gas on the Battlefield

Chlorine in Southern VictoryEdit

Chlorine was the first gas used as a poison gas in the Great War. Introduced by Germany, its ally, the United States quickly adopted it. It was first used by George Custer's First Army near Madisonville, Kentucky in 1915. In his usual hubris, Custer was convinced chlorine gas would be the weapon that would break the Confederate States.

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