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Inorganic peroxide
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<p>An inorganic peroxide is a <a href="/facts/Peroxide/VMU8y4xB">peroxide</a> of an <a href="/facts/Inorganic_compound/TfFfzxSz">inorganic compound</a>. Metal peroxides are metal-containing peroxides with <a href="/facts/Ionic_bonding/R6nUJI5u">ionically</a>- or <a href="/facts/Covalent_bond/EzMLf3Pz">covalently</a>-bonded <a href="/facts/Peroxide/VMU8y4xB">peroxide</a> (O2−2) groups. This large family of compounds can be divided into ionic and covalent peroxide. The first class mostly contains the peroxides of the <a href="/facts/Alkali_metal/IkWbCLk2">alkali</a> and <a href="/facts/Alkaline_earth_metal/Ts4U5zIe">alkaline earth metals</a> whereas the covalent peroxides are represented by such compounds as hydrogen peroxide and <a href="/facts/Peroxymonosulfuric_acid/kI1oC4JL">peroxymonosulfuric acid</a> (H2SO5). In contrast to the purely ionic character of alkali metal peroxides, peroxides of <a href="/facts/Transition_metal/0slGWoLQ">transition metals</a> have a more covalent character. </p><p>Main group peroxides are peroxide <a href="/facts/Derivative_(chemistry)/JYcbLkbm">derivatives</a> of the <a href="/facts/Main_group_element/2AG3QxJl">main group elements</a> (many of which are metals). Many compounds of the main group elements form peroxides, and a few are of commercial significance. </p>