Potassium Element Cube

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Potassium's atomic number is 19 and its symbol is K. Pure potassium is shiny bluish-silver metal. It is about as soft as chilled butter. When potassium is exposed to air it quickly loses its luster and is covered in an oxide layer that is a greyish color. Potassium is very reactive. It catches on fire and explodes when it comes in contact with water shooting out flaming pieces of reacting potassium. In compound form, it is essential to balancing electrical charges in living cells. Potassium was first isolated by dissolving plant ashes in water to make potash. The resulting potash was high in potassium because plants have a significantly higher ratio of potassium to sodium. Modern-day potassium is mined from ancient lakes and seabeds that contain a high concentration of potassium salts and naturally created potash.  

The sample of potassium in this element cube display is encapsulated in an argon-filled glass ampule to prevent the potassium from oxidizing and preserve its shiny luster. 

  • Made In USA
  • 2x2x2 inches
  • 99.995% Pure Sample 
What Sets Us Apart

Unlike many of the knock-offs found online, our element cubes contain the actual elements, which is perhaps the most important feature of the display!

Superior optical clarity, careful placement of the elements in the artwork, and real, pure elements are what set us apart. This is the highest quality and most complete element collection on the market.

We manufacture our element cubes here in the US using Lucite acrylic which does not yellow over time and is the most optically clear acrylic. This is the perfect gift for the science or chemistry lover in your life. Get yours today!

Discounts for Defects

We often have periodic tables, heritage museums, and other acrylic displays that have errors (usually a missing or displaced item). We sell these at a discount under the Discounted Items section of the website. Click this link to go to see these kinds of periodic tables. https://engineeredlabs.com/collections/discounted-items