The reaction between potassium and oxygen
Potassium | + | Oxygen | → | Potassium oxide |
4K | + | O2 | → | 2K2O |
Potassium burns with a lilac or light purple coloured flame. The potassium oxide that results from the reaction is a pale yellow colour. Potassium oxide is highly reactive. When potassium oxide reacts with water it forms potassium hydroxide, an alkaline solution with a pH of between 13 and 14.
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