Ceres

Cerium was named for the asteroid Ceres, which was discovered in 1801. The element was discovered two years later in 1803 by Klaproth and by Berzelius and Hisinger. In 1875 Hillebrand and Norton prepared the metal. 

In 1751 the Swedish mineralogist, A. F. Cronstedt, discovered a heavy mineral from which in 1803 M. H. Klaproth in Germany and, independently, i. i. Berzelius and W. Hisinger in Sweden, isolated what was thought to be a new oxide (or earth ) which was named ceria after the recently discovered asteroid, Ceres. Between 1839 and 1843 this earth, and the previously isolated yttria (p. 944), were shown by the Swedish surgeon C. G. Mosander to be mixtures from which, by 1907, the oxides of Sc, Y, La and the thirteen lanthanides other than Pm were to be isolated. The small village of Ytterby near Stockholm is celebrated in the names of no less than four of these elements (Table 30.1). 

G723 V. Cere, D. Dal Monte, S. Pollieino, and E. Sandri, Gazz. Chim. Ital. 

Panzeriausi. Ger WWii antitank projectile weapon utilizing a shaped charge expl and a tungsten carbide cere. It was lighter than an earlier version (Panzerschreck), and could be handled by one person. Its trajectory was flatter than the Panzerschreck, with a range of 150 meters Refs 1) L.E, Simon, German Research in World War II , J. Wiley, NY (1948), 187-8 2) Stettbacher (1948), 134... 

The EPA should consider establishing a national Center for Engineering Research on Environmental Protection and Process Safety (CERES), modeled on the National Center for Atmospheric Research. Chemical and process engineering researchers would benefit from a special collection of state-of-the-art laboratory facilities and computational resources dedicated to research on environmental protection, process... 

EM Boon, DM Ceres, TG Drummond, MG Hill, JK Barton. Nat. Biotechnol. 18 1096-1100,... 

Name Named by M. H. Klaproth after the recently discovered planetoid Ceres... 

Mills E, Lecomte E. From Risk to Opportunity How Insurers Can Proactively and Profitably Manage Climate Change. Boston, MA Ceres Report 2006. 

Cere eta/, reported that treatment of enantiopure C -symmetric polyhydroxylated thiepane 11a with trimethylsilyl iodide resulted in a polyhydroxylated tetrahydrothiopyran 13 being formed as a single diastereomer, as shown in Equation (1) <1997JOC8572>. It was proposed that transannular sulfide interaction, and displacement of the -OH... 

A well-known characteristic of medium-sized rings (8- to 11-membered) is their ability to undergo facile transannular reactions. Cere et al. found that acid-catalyzed transannular cyclizations of 8-10-membered 7,5-unsaturated cyclic sulfides yield fused bicyclic sulfonium salts independently of the geometry of the double bond <1998J(P2)977>. 

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