Potassium burning

Potassium burning

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This image is part of the sequence Science: Chemical reaction of potassium burning in air

Credit: ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

Caption: Potassium burning in air. Potassium (K) is a soft, highly reactive, alkali metal. In air it will burn with a brilliant flame to form potassium dioxide (or potassium superoxide, KO2). Potassium is the seventh most abundant metal in the Earth's crust, but is not found in its elemental form.

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Keywords: air, alight, alkali, alkali metal, atmosphere, burning, chemical, chemistry, combusting, combustion, element, elemental, experiment, flame, flames, gas jar, k, metal, oxidation, oxidisation, potassium, purple, reacting, reaction, smoke

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