News tagged with lanthanum
Rare earth metals: Another challenge for the green economy?
If you follow the clean energy dialogue, then you may have encountered discussions about the role of rare earth metals at some point in the last year or two. If not, read on, because rare earths should not ...
Technology / Energy & Green Tech
Apr 03, 2012 |
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China cuts 2012 rare earths export quota
(AP) -- China announced a cut Tuesday in its rare earths export quota as it tries to shore up sagging prices for the exotic metals used in mobile phones and other high-tech goods.
Dec 28, 2011 |
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Emerging new properties at oxide interfaces
In many ionic materials, including the oxides, surfaces created along specific directions can become electrically charged. By the same token, such electronic charging, or 'polarisation', can also occur at the interface of ...
Nov 29, 2011 |
5 / 5 (2) |
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Study measures key property of potential 'spintronic' material
An advanced material that could help bring about next-generation "spintronic" computers has revealed one of its fundamental secrets to a team of scientists from Argonne National Laboratory (ANL) and the National ...
Oct 19, 2011 |
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Etch-a-sketch with superconductors
Reporting in Nature Materials this week, researchers from the London Centre for Nanotechnology and the Physics Department of Sapienza University of Rome have discovered a technique to 'draw' superconducting shapes ...
Aug 22, 2011 |
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Ultrathin copper-oxide layers behave like quantum spin liquid
(PhysOrg.com) -- Magnetic studies of ultrathin slabs of copper-oxide materials reveal that at very low temperatures, the thinnest, isolated layers lose their long-range magnetic order and instead behave like ...
Jun 10, 2011 |
4.7 / 5 (7) |
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Unexpected magnetism discovered
Theoretical work done at the Department of Energy's Oak Ridge National Laboratory has provided a key to understanding an unexpected magnetism between two dissimilar materials.
Oct 18, 2010 |
4.9 / 5 (17) |
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Nations wary of dependence on China's rare earths
(AP) -- China's recent halt of exotic metal shipments to Japan amid a diplomatic spat has reverberated throughout the world's high-tech manufacturing hubs - now on heightened alert to the risks of relying ...
Oct 04, 2010 |
5 / 5 (2) |
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'Impossible' conductivity explained
(PhysOrg.com) -- Bring two materials that are not themselves conductive into contact and, exactly at their interface, something remarkable happens: at that precise point, conduction is possible.
May 19, 2010 |
4.8 / 5 (20) |
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Counting the 'Holes' in High-Temperature Superconductors
(PhysOrg.com) -- As part of the effort to better understand how superconductors transport electricity with zero resistance, a team of researchers has demonstrated a new way to count the number of a material's ...
Mar 25, 2010 |
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Rare earths are vital, and China owns them all
Rare earths may not be on most investors' radars, but they are certainly in almost any high-tech item they use -- and in the world of rare earths, China is king.
Space & Earth / Earth Sciences
Sep 28, 2009 |
4.2 / 5 (12) |
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Lanthanum
Lanthanum ( /ˈlænθənəm/) is a chemical element with the symbol La and atomic number 57. Lanthanum is a silvery white metallic element that belongs to group 3 of the periodic table and is the first element of the lanthanide series. It is found in some rare-earth minerals, usually in combination with cerium and other rare earth elements. Lanthanum is a malleable, ductile, and soft metal that oxidizes rapidly when exposed to air. It is produced from the minerals monazite and bastnäsite using a complex multistage extraction process. Lanthanum compounds have numerous applications as catalysts, additives in glass, carbon lighting for studio lighting and projection, ignition elements in lighters and torches, electron cathodes, scintillators, and others. Lanthanum carbonate (La2(CO3)3) was approved as a medication against renal failure.
For more information about Lanthanum, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
