Chromium Metal 10g+

Description: Chromium Metal, 10g+ in plastic vial for displaying the periodic table of elements. Chromium is a chemical element; it has symbol Cr and atomic number 24. It is the first element in group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. Chromium metal is valued for its high corrosion resistance and hardness. A major development in steel production was the discovery that steel could be made highly resistant to corrosion and discoloration by adding metallic chromium to form stainless steel. Stainless steel and chrome plating (electroplating with chromium) together comprise 85% of the commercial use. Chromium is also greatly valued as a metal that is able to be highly polished while resisting tarnishing. Polished chromium reflects almost 70% of the visible spectrum, and almost 90% of infrared light. The name of the element is derived from the Greek word , chrma, meaning color, because many chromium compounds are intensely colored. Industrial production of chromium proceeds from chromite ore (mostly FeCr2O4) to produce ferrochromium, an iron-chromium alloy, by means of aluminothermic or silicothermic reactions. Ferrochromium is then used to produce alloys such as stainless steel. Pure chromium metal is produced by a different process: roasting and leaching of chromite to separate it from iron, followed by reduction with carbon and then aluminium. In the United States, trivalent chromium (Cr(III)) ion is considered an essential nutrient in humans for insulin, sugar, and lipid metabolism. However, in 2014, the European Food Safety Authority, acting for the European Union, concluded that there was insufficient evidence for chromium to be recognized as essential. You will get 1- bottle containing 10g+ of Chromium metal for your element collection. It will be bottled, labeled and bubble wrapped. Then it will be placed in a box for shipping. That box will be labeled and shipped inside of a blue bubble wrap padded envelope for shipping and shipped via USPS Ground Advantage with tracking.

Price: 9.95 USD

Location: Salt Lick, Kentucky

End Time: 2025-01-05T09:53:26.000Z

Shipping Cost: 4.75 USD