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Research Paper On Chromium

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Chromium is a transition metal located in Group 6 of the periodic table and is steel grey in its pure form. It is the 21st most abundant element in the earths crust. It has many compounds that are colored, the most important compounds is the chromates of sodium and potassium; the dichromates; and potassium and ammonium chrome alums. Chromium was discovered by Louis-Nicholas Vauquelin in 1797. Vauquelin discovered that he could obtain metallic chromium by heating chromium oxide in a charcoal oven. Chromium can not be found as a free element in nature, it is found in the form of ores. Today, chromium can be obtained by heating the mineral chromite, which is the main ore of chromium, from the elements silicon or aluminum, or by the electrolysis
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