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K
Pottassium
Atomic no.:
19
Atom. weight: 39.0983
Density: 0.862
Class:
Alkali metal
Melting point: 63.25°C
Boiling point: 760°C
Colour: silvery shiny
   
Discoverer: Sir Humphrey Davy
Place: England
Year: 1807

Potassium was discovered in 1807 by Sir Humphrey Davy in London. Potassium is a soft, silvery colored metal, which like other members of the alkali group of metals, is extremely reactive. As with other members of the group, it can be prepared by electrolysis of the fused halide. It is one of the more common alkali metals, there being 26000 ppm in the earth's crust, the main source being potassium chloride. It does not occur naturally. Potassium has limited use as the pure metal, although it can be used with sodium as a coolant in liquid metal reactors. It is more commonly used as a salt; for example potassium bromide, which is used in photography, and potassium carbonate which has applications in the areas of fluxes, pharmaceuticals and soaps. One of the most important uses of potassium salts is as fertilisers. Potassium is an essential element for all living beings and, on average, a human being contains approximately 140 gm, the majority of which is present in muscle tissue.

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 Potassium metal, shiny - sealed in ampoule under argon, 99,5  Art. Nr. 004657  
Potassium metal, shiny - sealed in ampoule under argon, 99,5
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Potassium metal, shiny surface sealed in ampoule under argon 

1.07g

For this sample, Potassium metal was processed and filled under pure argon atmosphere to maintain the metallic surface shiny - sealed in specially treated borosilicate ampoule

This is a real must have for every elements collector.

Dangerous goods RID/ADR: yes, 4.3/PG 2 - UN# 1428 - Not deliverable to all countries! Please contact us!

Amount: 1 St. / 1 pc.
Purity : 99,5%
Packing: Ampoule, Argon
80.00
- tax free

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