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potassium 

chemical element with symbol K and atomic number 19
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Wikipedia
Instance of	chemical element (calcium, argon) lithophile
Subclass of	alkali metal (rubidium, sodium) metal s-block
Part of	group 1 (rubidium, sodium) period 4 (calcium, 1) alkali metal (rubidium, sodium)
Named after	potash
Discoverer or inventor	Humphry Davy (1807)
Time of discovery or invention	1807
Mass	39.0983 +0.0001 -0.0001 Da
Different from	serum potassium level
Authority file  Q703 GND ID: 4139553-0 Library of Congress authority ID: sh85105593 Bibliothèque nationale de France ID: 121440770 NDL Authority ID: 00565080 BNCF Thesaurus ID: 22579 NL CR AUT ID: ph705338 J9U ID: 987007529540605171 Reasonator Scholia Wikidocumentaries KML file Search depicted

Mineral

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  Potassium Feldspar
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  Lamproite
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  potassium chromium quartz
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  ore samples
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  Potash evaporation ponds
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  Kalsilite
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  dipotassium sodium cobaltinitrite_(K2Na(Co(NO2)6))
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  Polyhalite salt
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  Arcanite sulfate
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  Potassium permanganate
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  Erythrosiderite
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  Potassium ferrioxalate
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  Amazonite
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  potassium chloride
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  potassium ozonide
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  Potassium Benzylkalium
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  Potassium peroxydicarbonate
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  solutions
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  mud samples
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  blue halite
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  potash

Metal

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  Flame test
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  Manganistan draselny - KMnO₄
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  Potassium pearls
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  Blue potassium

Uses

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  explosive reaction
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  gunpowder contains saltpeter/potash, potassium nitrate
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  agricultural fertilizer
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  vitamin pills
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  bananas contain some potassium
• potassium permangernate reaction
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  potassium cyanide dissolves copper and gold
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  K2SO4 bleached leather
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  Potassium chlorochromate paint and dye
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  fireworks
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  soap

Video

• Reaction with water
• low levels
• high levels
• potassium chloride salt
• Potassium Iodide pills
• Reaction between potassium permanganate and glycerol
• potassium nitrate explosive
• fertilizer