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peroxide ion
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peroxide ion

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The peroxide ion, denoted as O22-, is a chemical species where two oxygen atoms are linked by a single covalent bond. Each oxygen atom carries an oxidation state of -1. This ion is a component of inorganic compounds that can be considered salts of hydrogen peroxide, a weak acid.123

Examples of inorganic peroxides include sodium peroxide (Na2O2), used as a bleaching agent, and barium peroxide (BaO2). Peroxides are known for their strong oxidizing properties and are utilized in various industrial applications, such as polymerization initiation and the production of hydrogen peroxide. The peroxide ion readily accepts hydrogen ions, making the peroxides of alkali and alkaline earth metals strong bases.123

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3 Britannica Sources
  1. peroxide
  2. oxide - Hydrogen peroxide
  3. oxide - Superoxides

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