Chlorine: Difference between revisions
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|eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>5</sup> | |eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>5</sup> | ||
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|properties=Pale yellow-green, toxic gas with strong odor. | |properties=Pale yellow-green, toxic gas with strong odor. | ||
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'''Chlorine''' is a [[Chemical elements|chemical element]], | '''Chlorine''' is a [[Chemical elements|chemical element]], typically found as a [[gas]] in its elemental form. It has the [[chemical symbol]] Cl, [[atomic number]] (number of [[protons]]) ''Z'' = 17, and a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 35.453 g/mol. | ||
Chlorine is considered a member of the "Halogen" class of | Chlorine is considered a member of the "Halogen" class of elements. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] −34.04 °[[Celsius (unit)|C]], and a [[melting point]] of −101.5 °C. | ||
==Chemical warfare== | ==Chemical warfare== | ||
Chlorine was the first agent used as a large-scale [[chemical weapon]], by German forces at the [[Second Battle of Ypres]] in 1915 | Chlorine was the first agent used as a large-scale [[chemical weapon]], by German forces at the [[Second Battle of Ypres]] in 1915 during [[World War I]]. It was released from cylinders carried by trains, but was replaced by agents that were sufficiently toxic, for weight, to be used in artillery shells (e.g., [[phosgene]]). | ||
Concern remains that chlorine, widely used in [[water purification]] and as an industrial chemical precursor, could be the source of a [[chemical terrorism]] incident. In industrialized countries, greater tracking and security is being applied to the large amounts shipped by rail. | Concern remains that chlorine, widely used in [[water purification]] and as an industrial chemical precursor, could be the source of a [[chemical terrorism]] incident. In industrialized countries, greater tracking and security is being applied to the large amounts shipped by rail.[[Category:Suggestion Bot Tag]] | ||
Latest revision as of 06:01, 28 July 2024
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Chlorine is a chemical element, typically found as a gas in its elemental form. It has the chemical symbol Cl, atomic number (number of protons) Z = 17, and a standard atomic weight of 35.453 g/mol.
Chlorine is considered a member of the "Halogen" class of elements. At a pressure of 101.325 kPa, it has a boiling point −34.04 °C, and a melting point of −101.5 °C.
Chemical warfare
Chlorine was the first agent used as a large-scale chemical weapon, by German forces at the Second Battle of Ypres in 1915 during World War I. It was released from cylinders carried by trains, but was replaced by agents that were sufficiently toxic, for weight, to be used in artillery shells (e.g., phosgene).
Concern remains that chlorine, widely used in water purification and as an industrial chemical precursor, could be the source of a chemical terrorism incident. In industrialized countries, greater tracking and security is being applied to the large amounts shipped by rail.