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cerium

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cerium

a malleable ductile steel-grey element of the lanthanide series of metals, used in lighter flints and as a reducing agent in metallurgy. Symbol: Ce; atomic no.: 58; atomic wt.: 140.115; valency: 3 or 4; relative density: 6.770; melting pt.: 798°C; boiling pt.: 3443°C
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

cerium

[′sir·ē·əm]
(chemistry)
A chemical element, symbol Ce, atomic number 58, atomic weight 140.12; a rare-earth metal, used as a getter in the metal industry, as an opacifier and polisher in the glass industry, in Welsbach gas mantles, in cored carbon arcs, and as a liquid-liquid extraction agent to remove fission products from spent uranium fuel.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Cerium

 

Ce, a chemical element. Atomic number, 58; atomic weight, 140.12. A rare-earth element, cerium is one of the lanthanides.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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References in periodicals archive
The nanocomposite films have a smooth, homogenous, uniform surface, with the clay incorporated with cerium oxide up to MMT concentrations of 5%.
To prepare this new cerium nitrate reagent, 1,4-dichlorobutane was added to triphenylphosphine in CHCl3 under refluxing conditions for 2.5 h to synthesize 1,4-bis (triphenylphosphonium) butane dichloride (1).
In Figure 3(a), we display the calculated total electronic charge density of CeTe in the rhombohedral structure as an example of the rearrangement of the electrons in forming cerium monochalcogenides.
SEM analysis showed that a very thin film was formed on these substrates as a result of the cerium treatment and even obtained a better coat of cerium at the optimum concentration of accelerator.
A cost benefit analysis will be completed to determine the optimum method of cerium production as part of the current Pre-Feasibility Study.
The cerium oxide nanoparticles manufacturers either use in-house materials or buy from raw material suppliers to process them.
3 The company was born out of a relationship with the Medical Research Council and now has a similar relationship with the University of Essex to ensure academic expertise is at the heart of all that Cerium Visual Technologies does.
La large calandre dispose d'un cerclage en Cerium Grey pour une differenciation visuelle a premiere vue.
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