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Advanced search. Magnesium was first isolated by Sir Humphry Davy, an English chemist, through the electrolysis of a mixture of magnesium oxide MgO and mercuric oxide HgO in Every cubic kilometer of seawater contains about 1.
Magnesium burns with a brilliant white light and is used in pyrotechnics, flares and photographic flashbulbs. Magnesium is the lightest metal that can be used to build things, although its use as a structural material is limited since it burns at relatively low temperatures.
Magnesium is frequently alloyed with aluminum , which makes aluminum easier to roll, extrude and weld. Magnesium-aluminum alloys are used where strong, lightweight materials are required, such as in airplanes, missiles and rockets.
Cameras, horseshoes, baseball catchers' masks and snowshoes are other items that are made from magnesium alloys. On Earth, magnesium is found both in the crust and in the mantle; it's also the third-most abundant mineral dissolved in seawater, with a 0. After Davy isolated magnesium in , several scientists worked to purify the metal using various methods, according to the USGS.
It wasn't until , though, that an electrolysis method, developed by Robert Bunsen inventor of the Bunsen burner , made industrial production possible. Magnesium burns too easily to be used widely for building, according to the Jefferson Lab, but when mixed with aluminum, it creates an alloy that is strong, light and easy to work with.
Magnesium also has biological uses. It's part of chlorophyll, the green pigment that plants use to extract energy from sunlight. The element is also crucial to more than biological processes in the human body, according to the U. National Library of Medicine.
Adult women should take in about milligrams of magnesium a day, and adult men milligrams, according to the NLM. Fruits, vegetables, nuts, legumes and whole grains are good sources. It was isolated by Sir Humphry Davy in almost years after its discovery. He electrolysised mixture of magnesia magnesium oxide, MgO and mercuric oxide HgO.
Davy's first suggestion for a name was magnium but the name magnesium is now used.
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