News tagged with iodine
Chemists find new material to remove radioactive gas from spent nuclear fuel
(PhysOrg.com) -- Research by a team of Sandia chemists could impact worldwide efforts to produce clean, safe nuclear energy and reduce radioactive waste.
Jan 24, 2012 |
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Radiation from Japan found in kelp off US West Coast
Radioactive iodine was found in kelp off the US West Coast following last year's earthquake-triggered Fukushima Daiichi nuclear meltdown, according to a new study.
Apr 10, 2012 |
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How algae use a 'sulfate trap' to selectively biomineralize strontium
(PhysOrg.com) -- In any kind of nuclear reactor, there is a small amount of the radioactive isotope strontium-90 that is formed as part of the regular fission process. In fact, fission products such as strontium-90 ...
Oct 21, 2011 |
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Simple method of dealing with harmful radioactive iodine discovered
A novel way to immobilise radioactive forms of iodine using a microwave, has been discovered by an expert at the University of Sheffield.
May 24, 2011 |
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Research shows some algae might help reduce nuclear waste
(PhysOrg.com) -- New research conducted by Minna Krejci and her colleagues at Northwestern University in Chicago, and published in ChemSusChem, suggests that the algae, Closterium moniliferum, might one day ...
Mar 31, 2011 |
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Fukushima: Sea contamination likely to be local - scientists
Radioactive contamination of the sea from Fukushima is likely to be only a local problem, but could lead to an exclusion zone if there is a major release of long-term pollutants, scientists say.
Mar 29, 2011 |
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Radiation from Japan detected in Cleveland
A researcher at Case Western Reserve University has detected tiny amounts of Iodine 131 from Japan in rainwater collected from the roof of a campus building.
Mar 28, 2011 |
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Caught red-handed: Detection of latent fingerprints through release of fluorescein from a nanofiber mat
(PhysOrg.com) -- When a forensic agent dusts a surface with powder or exposes it to the vapors of an iodine chamber, mystery fans know what is going on: This is how latent fingerprints are made visible so ...
Apr 11, 2011 |
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Powerful computers, experiments provide insights into ion's behavior near interfaces
(PhysOrg.com) -- From renewable energy sources to pharmaceuticals, iodide ions are a common actor, and now, thanks to scientists at Pacific Northwest National Laboratory, the ion's behavior can be better predicted. ...
Jun 08, 2011 |
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Mountains limited spread of fallout from Fukushima
A map of radioactive contamination across Japan from the Fukushima power plant disaster confirms high levels in eastern and northeastern areas but finds much lower levels in the western part of the country, thanks to mountain ...
Space & Earth / Earth Sciences
Nov 14, 2011 |
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Finns run for iodine after blasts at Japanese nuclear plant
Concerns about possible radiation from Japan's earthquake-damaged Fukushima nuclear power plant sparked a weekend run on iodine tablets as far away as Finland, the country's largest pharmacy chain said Monday.
Mar 14, 2011 |
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In or out: Setting a trap for radioactive iodine
Nuclear power plants produce a host of radioactive isotopes as by-products. One such radioisotope is Iodine-129 (129I). With a half-life of nearly 16 million years, the 129I produced by nuclear power plan ...
Aug 26, 2010 |
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Scientists track radioactive iodine from Japan nuclear reactor meltdown
Using a new investigative methodology, Dartmouth researchers have found and tracked radioactive iodine in New Hampshire from the Fukushima Daiichi nuclear disaster.
Apr 02, 2012 |
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Fukushima nuke pollution in sea 'was world's worst'
France's nuclear monitor said on Thursday that the amount of caesium 137 that leaked into the Pacific from the Fukushima disaster was the greatest single nuclear contamination of the sea ever seen.
Oct 27, 2011 |
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Iowa State chemists help astronauts make sure their drinking water is clean
Bob Lipert held up a syringe, attached a plastic cartridge and demonstrated how chemistry developed at Iowa State University is helping astronauts and cosmonauts make sure they have safe drinking water at ...
Chemistry / Analytical Chemistry
Sep 14, 2011 |
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Iodine
Iodine (pronounced /ˈaɪ.ədaɪn/, /ˈaɪ.ədɨn/, or in chemistry /ˈaɪ.ədiːn/; from Greek: ιώδης iodes "violet"), is a chemical element that has the symbol I and atomic number 53. Naturally-occurring iodine is a single isotope with 74 neutrons.
Chemically, iodine is the second least reactive of the halogens, and the second most electropositive halogen; trailing behind astatine in both of these categories. However, the element does not occur in the free state in nature. As with all other halogens (members of Group XVII in the periodic table), when freed from its compounds iodine forms diatomic molecules (I2).
Iodine and its compounds are primarily used in medicine, photography, and dyes. Although it is rare in the solar system and Earth's crust, the iodides are very soluble in water, and the element is concentrated in seawater. This mechanism helps to explain how the element came to be required in trace amounts by all animals and some plants, being the heaviest element commonly used by living organisms (only tungsten, used in enzymes by a few bacteria, is heavier).
For more information about Iodine, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
