potassium superoxide

chemical compound

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July 1, 2026

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Potassium superoxide (KO₂) is a chemical compound containing the superoxide anion (O₂⁻). It is formed by the direct combustion of potassium metal in dry air. This compound is notable for its ability to liberate oxygen and absorb carbon dioxide and water vapor, making it useful in respiratory equipment. Oxygen (O), a nonmetallic chemical element, is essential for life, with plants producing it through photosynthesis and animals consuming it during respiration. Potassium (K) is an alkali metal vital for both plant and animal life.123

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potassium
Properties, occurrence, and uses
…combustion in dry air to potassium superoxide, KO₂, which is used in respiratory equipment because it liberates oxygen and removes carbon dioxide and water vapour. (The superoxide of potassium is a yellow solid consisting of K⁺and O₂⁻ ions. It also can be formed by oxidation of potassium amalgam with dry…
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…combustion in dry air to potassium superoxide, KO₂, which is used in respiratory equipment because it liberates oxygen and removes carbon dioxide and water vapour. (The superoxide of potassium is a yellow solid consisting of K⁺and O₂⁻ ions. It also can be formed by oxidation of potassium amalgam with dry…
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