Thursday, December 2, 2010

Magnesium: The most commonly used metal

Magnesium derives its name from magnesite, a magnesium carbonate mineral, and this stone is said to be the third most used metal, following iron and aluminum. Magnesium was historically found in Magnesia, region in the antique Greek region of Thessaly. Humphry Davy, a British chemist is said to have manufactures a mixture of magnesium in 1808 by electrolyzing damp magnesium sulfate, utilizing mercury as a cathode.

Magnesium was successfully manufacture in Germany in 1886 by Aluminum und Magnesium fabric Hemelingen, depending on the electrolysis of molten carnallite. Hemelingen later became constituent of the industrial compound IG Farbenindustrie, which, for the duration of the 1920s and ’30s, urbanized a process for manufacturing huge quantities of molten and fundamentally water-free magnesium chloride (now branded as the IG Farben process) as well as the expertise for electrolyzing this merchandise to magnesium metal and chlorine.

Mining and concentrating

Both dolomite and magnesite are hauled out and intensified by conventional methods. Carnallite is hauled out as ore or estranged from other salt amalgams that are brought to the exterior by solution mining. Magnesium in a form of brines is also determined in large ponds by solar desertion.


Extraction and refining

A physically powerful chemical reagent, magnesium structures steady compounds and responds with oxygen and chlorine in equally the liquid and gaseous status. This means that taking out of the metal from unrefined materials is a force exhaustive procedure requiring nicely tuned technologies. Commercial construction pursues 2 completely dissimilar methods: electrolysis of magnesium chloride or thermal lessening of magnesium oxide. Where power charges are stumpy, electrolysis is the cheaper means and, undeniably, it accounts for something like 75 percent of world magnesium production.


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