Density
0.862 g/cm³ (liquid at melting point)
Discovery
Discovered by Humphry Davy in 1807.
Common Uses
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Used in fertilizers for agriculture
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Essential in dietary supplements
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Employed in fireworks for its violet flame
Interesting Facts
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Potassium is vital for nerve and muscle function.
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It reacts explosively with water.
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Its compounds are often found in salt substitutes.
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