1 янв 1807 г. - Potassium discovery

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Humprhy Davy discovered
Melting point: 63.2 °C
Boiling point: 760 °C
Isotopes: 5
Atomic number: 19
Potassium carbonate is used in the manufacture of glass. Potassium hydroxide is used to make detergent and liquid soap. Potassium chloride is used in pharmaceuticals and saline drips.

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