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Chlorine is a chemical element with symbol Cl and atomic number 17. Chlorine is in the halogen group (17). Chlorine is most commonly found in sodium chloride. . It is the second most abundant halogen and 21st most abundant chemical element in Earth's crust. The great oxidizing potential of chlorine led it to its bleaching and disinfectant uses, as well as uses of an essential reagent in the chemical industry. As a common disinfectant, chlorine compounds are used in Swimming Pools to keep them clean and sanitary.

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13y ago

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