Editing Peroxide (section)

== Common forms ==
[[File:Peroxide_group_v.2.png|left|thumb|324x324px|Types of peroxides, from top to bottom: peroxide ion, [[organic peroxide]], organic hydroperoxide, [[peracid]]. The peroxide group is marked in '''blue'''. R, R<sup>1</sup> and R<sup>2</sup> mark hydrocarbon [[Moiety (chemistry)|moieties]].]]
The most common peroxide is [[hydrogen peroxide]] ({{chem2|H2O2}}), colloquially known simply as "peroxide". It is marketed as solutions in water at various concentrations. Many organic peroxides are known as well.

In addition to hydrogen peroxide, some other major classes of peroxides are:

* [[Peroxy acid|Peroxy acids]], the peroxy derivatives of many familiar acids, examples being [[peroxymonosulfuric acid]] and [[peracetic acid]], and their salts, one example of which is [[potassium peroxydisulfate]].
* [[Main group peroxides]], compounds with the linkage {{chem2|E\sO\sO\sE}} (E = [[main group element]]).{{multiple image
| direction         = vertical
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| image1            = H2O2 gas structure.svg
| alt1              = {{chem2|O\sO}} bond length = 147.4 pm <br />{{chem2|O\sH}} bond length = 95.0 pm
| caption1          = Structure and dimensions of {{chem2|H2O2}} in gas phase.
}}
* [[Metal peroxide|Metal peroxides]], examples being [[barium peroxide]] ({{chem2|BaO2}}), [[sodium peroxide]] ({{chem2|Na2O2}}) and [[zinc peroxide]] ({{chem2|ZnO2}}).
* [[Organic peroxide|Organic peroxides]], compounds with the linkage {{chem2|C\sO\sO\sC}} or {{chem2|C\sO\sO\sH}}. One example is [[Tert-Butyl hydroperoxide|''tert''-butylhydroperoxide]].