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Chlorine

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Chlorine
Atomic symbol Cl
Atomic number 17
Atomic mass 35.45
Classification Halogen
Melting point -100.8°C172.35 K
-149.44 °F
310.23 °R
Boiling point -34.0°C239.15 K
-29.2 °F
430.47 °R
Density .00321 g/cm³


Chlorine is a gaseous element that takes the form of a poisonous greenish gas. It is used in bleach and as a mild disinfectant. It also appears in numerous and diverse useful compounds such as hydrochloric acid, chlorofluorocarbons and common salt.

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