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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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 Acrylic Element cube - Potassium K - 50mm  Art. Nr. 003210  
Acrylic Element cube - Potassium K - 50mm
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The Sensation! Acrylic Element-blocks NEW!

Potassium - 1g in ampoule under argon! Hard to find high pure sample. Only a very limited amount available!!

The innovation! Selected element samples in amply amount embedded in 50x50x50mm first-class crystal clear acrylic (not cheap resin!) . Totally lightfast, high gloss polish. The text is embedded inside! Hand crafted! Made in the European Union! Each acrylic block is a unique and individual piece! EXTREMELY eye-catching!

These original acrylic cubes are used in many important and famous periodic table collections allover the world!

100% Handmade in the European Union!

 

Each cube comes in its separate original box!
     

Complete illuminated displays with our cubes are available on request

Amount: 1 St.
Purity : 99.99%
Packing: PE bag
161.00
- tax free
5-9 pcs.: 153.00 Euro
>9 pcs.: 145.00 Euro
Availability: 10 in stock

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