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In chemistry, a superoxide is a compound that contains the superoxide ion, which has the chemical formula O − 2. [1] The systematic name of the anion is dioxide(1−) . The reactive oxygen ion superoxide is particularly important as the product of the one-electron reduction of dioxygen O 2 , which occurs widely in nature. [ 2 ]
Potassium superoxide (KO 2) is a yellow solid that decomposes at 560 °C. It is used as a CO 2 scrubber, H 2 O dehumidifier, and O 2 generator in rebreathers, spacecraft, submarines, and spacesuit life support systems. Rubidium superoxide (RbO 2) is produced when rubidium burns in air. Caesium superoxide (CsO 2) is produced when caesium burns ...
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Superoxides are a class of compounds that are very similar to peroxides, but with just one unpaired electron for each pair of oxygen atoms (O − 2). [6] These compounds form by oxidation of alkali metals with larger ionic radii (K, Rb, Cs). For example, potassium superoxide (KO 2) is an orange-yellow solid formed when potassium reacts with oxygen.
superoxide (O − 2) is produced by reduction of O 2. [4] Several grams are produced per day in the human body within the mitochondria. [5] O 2 + e − → O − 2. Competing with its formation, superoxide is destroyed by the action of superoxide dismutases, enzymes that catalyze its disproportionation: 2 O − 2 + 2H + → O 2 + H 2 O 2
From ancient history to the modern day, the clitoris has been discredited, dismissed and deleted -- and women's pleasure has often been left out of the conversation entirely. Now, an underground art movement led by artist Sophia Wallace is emerging across the globe to challenge the lies, question the myths and rewrite the rules around sex and the female body.
These are examples of how the free-radical theory of aging has been used to neatly "explain" the origin of many chronic diseases. [24] Free radicals that are thought to be involved in the process of aging include superoxide and nitric oxide. [25]
A new documentary is set to explore the psyche of Luigi Mangione, the 26-year-old who is accused of fatally shooting UnitedHealthcare CEO Brian Thompson.. On Thursday, Investigation Discovery ...