Chlorine

Chlorine (from the Greek language Chloros, meaning "pale green"), is the chemical element with atomic number 17 and symbol Cl. It is a halogen, found in the periodic table in group 17. As part of common salt and other compounds, it is abundant in nature and necessary to most forms of life, including the human body. As chlorine gas, it is greenish yellow, is two and one half times as heavy as air, has an intensely disagreeable suffocating odor, and is exceedingly poisonous. In its liquid and solid form it is a powerful oxidizing, bleaching, and disinfecting agent.

Notable characteristics

The pure chemical element, has the physical form of a diatomic yellow-green gas, Cl2.

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This element is a member of the salt-forming halogen series and is extracted from chlorides through oxidation and more commonly, by electrolysis. Chlorine is a greenish-yellow gas that combines readily with nearly all other elements. At 10°C one liter of water dissolves 3.10 liters of chlorine and at 30 °C only 1.77 liters.

Related Topics:
Salt - Oxidation - Electrolysis - C - Liter - Water

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