What is Chlorine?
Chlorine (from the Greek χλωρóς 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 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 under standard conditions, it is a pale green gas about 2.5 times as dense as air. It has a disagreeable suffocating odor and is poisonous. Chlorine is a powerful oxidant and is used in bleaching and disinfectants.
Chlorine gas is diatomic with the formula Cl2. It combines readily with nearly all other elements, although it is not as extremely reactive as fluorine. At 10 °C one litre of water dissolves 3.10 litres of gaseous chlorine and at 30 °C only 1.77 litres.
This element is a member of the salt-forming halogen series and is extracted from chlorides through oxidation often by electrolysis. As the chloride ion, Cl–, it is also the most abundant dissolved species in ocean water. |
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Relevant sites for Chlorine:
Chlorine
Organic chemistry demands much from chlorine, both as an oxidizing agent and in ... desired properties in an organic compound when substituted for hydrogen, ...
Chlorinated Hydrocarbons
When we think of chlorine, we often relate it to the salt used in food ... Cl connected to C atoms in organic compounds exhibits intense low-energy features ...
C3.org - Nature's Lessons: Chlorinated Organic Compounds
Chlorine and chlorinated organic compounds are ubiquitous in nature, filling numerous vital roles, and functioning in ways that researchers are still ...
Chlorine compounds glossary: chemistry of dioxins, chlorinated ...
In total, more than 2000 natural organic chlorine compounds have already been identified ... Organic chlorine compounds constitute a group of more than 2000 ...
Standard Test Method for Chlorine in Organic Compounds by Sodium ...
1.1 This test method covers the determination of chlorine in.
Chlorine (Cl2) (cl2) - Properties, Purity and Packaging, including ...
Chlorine can displace the heavier halogens, bromine and iodine, from their ionic compounds and undergoes addition or sub- stitution reactions with organic ...
USGS CIRC 1157 subpage: MAJOR ISSUES AND FINDINGS--Other Organic ...
These organic compounds (chemical compounds containing the element carbon) include organochlorine compounds (compounds with both carbon and chlorine); ...
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