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{{about|the compound ClO|the oxoanion with the formula
{{single source|date=February 2024}}
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▲| PIN = Chlorine monoxide
▲| SystematicName = Chlorooxidanyl
| OtherNames = Chlorine(II) oxide
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| CASNo_Ref = {{cascite|correct|CAS}}
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| UNII = 0EQ5I4TK19
| PubChem = 166686
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| ChEBI = 29314
| MeSHName = Chlorosyl |
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'''Chlorine monoxide''' is a chemical [[Radical (chemistry)|radical]] with the chemical formula ClO<sup>•</sup>. It plays an important role in the process of [[ozone depletion]]. In the [[stratosphere]], [[chlorine]] atoms react with [[ozone]] molecules to form chlorine monoxide and [[oxygen]].
:Cl
This reaction causes the depletion of the [[ozone layer]].<ref name="holleman_wiberg">{{cite book | title = Inorganic chemistry | author1 = Egon Wiberg | author2 = Nils Wiberg | author3 = Arnold Frederick Holleman | publisher = Academic Press | year = 2001 | isbn = 0-12-352651-5 | page = 462}}</ref>
: ClO
regenerating the chlorine radical. In this way, the overall reaction for the decomposition of ozone is catalyzed by chlorine, as ultimately chlorine remains unchanged. The overall reaction is:
:O<sup>•</sup> + O<sub>3</sub> → 2 O<sub>2</sub><!-- The reaction was :O· + O
3 → + 2O
2. Why the "+" on the products side ? was something missing? -->
Even though the use of CFCs has been banned in many countries, CFCs can stay in the atmosphere for 50 to 500 years. This causes many chlorine radicals to be produced and hence a significant amount of ozone molecules are decomposed before the chlorine radicals are able to react with chlorine monoxide to form [[dichlorine monoxide]].
== References ==
{{reflist}}
{{Chlorine compounds}}
{{oxygen compounds}}
{{DEFAULTSORT:Chlorine Monoxide}}
[[Category:Oxides]]▼
[[Category:Free radicals]]
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