15mg of 99.9% Pure Potassium Metal in a glass ampoule element sample in a PEGUYS periodic element tile, custom made for you. Each tile comes with a JMOL color coded label on the reverse displaying all the essential periodic element information. (Atomic Number, Element Symbol, and Atomic Mass). We have produced an entire range of elements in different mediums protected in our unique airtight acrylic tiles.
The size of these tiles is 29mm x 26mm (1- and 1/8-inch x 1 inch).
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