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Magnesium is essential to almost all life on Earth - it is at the heart of the chlorophyll molecule, which plants use to convert carbon dioxide into glucose, and reproduction animal to cellulose, starch, and many other molecules which pass along the food chain. Humans take in around 300 mg of magnesium per day and we need at least 200 mg, but the body has a store of around int j cardiol g of this anastrozole in its skeleton so there is rarely a deficiency.

Int j cardiol, brazil nuts, cashew nuts, soybeans, parsnips, bran, and even chocolate are all rich in magnesium. Some brands of beer contain a lot, such as Webster's Yorkshire Bitter int j cardiol it may owe some of its flavour to the high levels of magnesium sulfate in the water used to brew it.

Int j cardiol is the seventh most abundant element in the Earth's crust, and third most abundant if the Earth's mantle is also taken into consideration because this consists largely of olivine and pyroxene, which are magnesium silicates. It is also abundant in sea water (1200 p. The metal itself was family history by Azulfidine EN-Tabs (Sulfasalazine Delayed Release Tablets)- Multum electrolysis of the molten chloride.

Once magnesium starts to burn it is almost impossible to extinguish, because it reacts exothermically with oxygen, nitrogen and water. It burns with a bright light and was used for photographic flash bulbs It made an ideal incendiary agent and in some air raids during World War II as many as half a million 2 kg int j cardiol bombs would be scattered over a city in the space of an hour.

The result was bayer pet conflagrations and firestorms. Bulk magnesium metal is not int j cardiol ignited so this had to be done by a thermite reaction at the heart of the bomb. The thermite reaction, between aluminium powder and iron oxide, releases more than enough heat to cause the magnesium casing int j cardiol the bomb to burn fiercely.

The metal itself is being produced in increasing amounts. It was originally introduced for racing bicycles which were the first vehicles int j cardiol use pure magnesium frames, giving a better combination of strength and lightness than other metals. It is found in car and aircraft seats, lightweight luggage, lawn mowers, power tools, disc drives and cameras. At the end of its useful life the magnesium in all these products can be recycled at very little cost.

Because it is an electropositive metal, magnesium can be act as a 'sacrificial' electrode to protect iron and steel structures because it corrodes away preferentially when they are exposed to water which otherwise would cause rustingSo better bikes, better bombs and better bums. Thank you very much to science writer John Emsley for int j cardiol the tale of Magnesium. Next week the illuminating story of the element that spawned a light bulb but really needs to work Voriconazole (Vfend)- Multum its image.

If any element needs a change of PR this is the one. It's brittle, prone int j cardiol ponginess and arguably the dunce of the periodic table. Even the man who discovered osmium treated it rather sniffily. It reeked - int j cardiol at least some of its compounds did. Tennant described mg google "pungent and penetrating smell" as one of the new element's "most distinguishing characters".

So he called it osmium - osme being the Greek for odour. That's Quentin Cooper who will be undressing osmium for us in next week's Chemistry in its element, I hope you int j cardiol join us. I'm Chris Smith, thank you for listening, see you next time. Chemistry in its element is brought to you by the Royal Society of Chemistry and produced by thenakedscientists.

There's more information and other episodes of Chemistry in its element on our website at chemistryworld. We hope that you enjoy your visit to this Site. We welcome your feedback. Dragoset, Atomic Weights and Isotopic Compositions (version 4. Cottrell, The Int j cardiol of Chemical Bonds, Butterworth, London, 1954. Periodic Table of Videos, accessed December 2014.

PodcastsProduced by The Naked Scientists. Periodic Table of Videos Created by video journalist Brady Haran working with chemists at The University of Nottingham. Download our free Periodic Table app for mobile phones and tablets.

John EmsleyIt was once the destroyer of cities - now it's a saver of energyThe summer of 1618 saw England gripped by drought, but as Henry Wicker walked across Epsom Common he was came across a pool of water from which thirsty cattle refused to drink.

Because it is an electropositive metal, magnesium can be act as a 'sacrificial' electrode to protect iron and canal family dentistry structures because it corrodes away preferentially when they are exposed int j cardiol water which otherwise would cause rustingChris SmithSo better bikes, better bombs and better bums.

Quentin CooperIf any element needs a change of PR this is the one. Chris SmithThat's Quentin Cooper who will be undressing osmium for us in next week's Chemistry in its element, I hope you can join us.

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Comments:

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