Cerium Chunk

High Purity Ce Chunk
CAS 7440-45-1


Product Product Code Order or Specifications
(2N) 99% Cerium Chunk CE-M-02-CK Contact American Elements
(3N) 99.9% Cerium Chunk CE-M-03-CK Contact American Elements
(4N) 99.99% Cerium Chunk CE-M-04-CK Contact American Elements
(5N) 99.999% Cerium Chunk CE-M-05-CK Contact American Elements

CHEMICAL
IDENTIFIER		 Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.		 SMILES
Identifier 		InChI
Identifier		 InChI
Key
Ce 7440-45-1 24869828 23974 MFCD00010924 231-154-9 N/A [Ce] InChI=1S/Ce GWXLDORMOJMVQZ-UHFFFAOYSA-N

PROPERTIES Mol. Wt. Appearance Density Tensile Strength Melting Point Boiling Point Thermal Conductivity Electrical Resistivity Eletronegativity Specific Heat Heat of Vaporization Heat of Fusion MSDS
140.12 Silvery 6689kg/m³ N/A 795°C 3360°C 0.113/cm/K @ 298.2 K 75.0 microhm-cm @ 25 °C 1.1 Paulings 0.049 Cal/g/K @ 25°C 95 K-cal/gm atom at 3426°C 2.12 Cal/gm mole Safety Data Sheet

High Purity ChunkAmerican Elements specializes in producing high purity Cerium Chunk using crystallization, solid state and other ultra high purification processes such as sublimation. Standard Chunk pieces are amorphous uniform pieces ranging in size from 5-15 mm. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into granules, rod, bar or plate form, as well as other machined shapes and through other processes such as nanoparticles (See also application discussion at Nanotechnology Information and at Quantum Dots) and in the form of solutions and organometallics. See research below. We also produce Cerium as rod, pellets, powder, pieces, disc, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.

Cerium(Ce) atomic and molecular weight, atomic number and elemental symbolCerium is a Block F, Group 3, Period 6 element. The number of electrons in each of Cerium's shells is 2, 8, 18, 19, 9, 2 and its electronic configuration is [Xe]4f2 6s2. In its elemental form cerium's CAS number is 7440-45-1. The cerium atom has a radius of 182.5.pm and it's Van der Waals radius is 181.pm. Cerium is moderately toxic. Cerium is one of the products manufactured and distributed under the tradename AE Rare Earths. Cerium is the most abundant of the rare earths metals. It is characterized chemically by having two valence states , the +3 cerous and +4 ceric states. The ceric state is the only non-trivalent rare earth ion stable in aqueousCerium Bohr Model solutions.It is, therefore,Elemental Cerium strongly acidic and moderately toxic. It is also a strong oxidizer. The cerous state closely resembles the other trivalent rare earths. In December 2012, a team of researchers found that topical applications of water-soluble Cerium Oxide Nanoparticles significantly accelerated the healing time of subcutaneous wounds of mice, indicating a potentially significant future application for nanotechnology in the field of medicine. The numerous commercial applications for cerium include metallurgy, glass and glass polishing, ceramics, catalysts, as the electrolyte for solid oxide fuel cells when doped with yttrium, gadolinium or samarium and in phosphors. In steel manufacturing it is used to remove free oxygen and sulfur by forming stable oxysulfides and by tying up undesirable trace elements, such as lead and antimony. It is considered to be the most efficient glass polishing agent for precision optical polishing. It is also used to decolor glass by keeping iron in its ferrous state. The ability of cerium-doped glass to block out ultra violet light is utilized in the manufacturing of medical glassware and aerospace windows. It is also used to prevent polymers from darkening in sunlight and to suppress discoloration of television glass. Cerium is found in the minerals allanite, bastnasite, hydroxylbastnasite, monazite, rhabdophane, synchysite and zircon. Cerium was first discovered by W. von Hisinger in 1903. The element was named after the asteroid Ceres. See Cerium research below.


HEALTH, SAFETY & TRANSPORTATION INFORMATION
Danger
H228-H302-H312-H315-H319-H332-H335
F, Xn
11-20/21/22-36/37/38
16-26-36/37/39
N/A
UN 1333 4.1/PG 2
3
Exclamation Mark-Acute Toxicity Flame-Flammables      

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PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.


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Request an MSDS or Certificate of Analysis





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Recent Research & Development for Cerium

  • Silica supported copper and cerium oxide catalysts for ethyl acetate oxidation. Tsoncheva T, Issa G, Blasco T, Concepcion P, Dimitrov M, Hernández S, Kovacheva D, Atanasova G, López Nieto JM. J Colloid Interface Sci. 2013 May 14. doi:pii: S0021-9797(13)00418-9. 10.1016/j.jcis.2013.05.005.
  • Cerium Oxide Nanoparticles Protect Endothelial Cells from Apoptosis Induced by Oxidative Stress. Chen S, Hou Y, Cheng G, Zhang C, Wang S, Zhang J. Biol Trace Elem Res. 2013 Jun 6.
  • Growth mode and oxidation state analysis of individual cerium oxide islands on Ru(0001). Flege JI, Kaemena B, Senanayake SD, Höcker J, Sadowski JT, Falta J. Ultramicroscopy. 2013 May 14. doi:pii: S0304-3991(13)00113-7. 10.1016/j.ultramic.2013.04.007.
  • Kidney injury and alterations of inflammatory cytokine expressions in mice following long-term exposure to cerium chloride. Sang X, Ze X, Gui S, Wang X, Hong J, Ze Y, Zhao X, Sheng L, Sun Q, Yu X, Wang L, Hong F. Environ Toxicol. 2013 May 28. doi: 10.1002/tox.21872.
  • Antiapoptotic effects of cerium oxide and yttrium oxide nanoparticles in isolated rat pancreatic islets. Hosseini A, Baeeri M, Rahimifard M, Navaei-Nigjeh M, Mohammadirad A, Pourkhalili N, Hassani S, Kamali M, Abdollahi M. Hum Exp Toxicol. 2013 May;32(5):544-53. doi: 10.1177/0960327112468175.
  • Trans-generational impact of cerium oxide nanoparticles on tomato plants. Wang Q, Ebbs SD, Chen Y, Ma X. Metallomics. 2013 May 29;5(6):753-9. doi: 10.1039/c3mt00033h.
  • Effect of cerium oxide nanoparticles on rice: a study involving the antioxidant defense system and in vivo fluorescence imaging. Rico CM, Hong J, Morales MI, Zhao L, Barrios AC, Zhang JY, Peralta-Videa JR, Gardea-Torresdey JL. Environ Sci Technol. 2013 Jun 4;47(11):5635-42. doi: 10.1021/es401032m.
  • Effects of Cerium Oxide Nanoparticles on PC12 Neuronal-Like Cells: Proliferation, Differentiation, and Dopamine Secretion. Ciofani G, Genchi GG, Liakos I, Cappello V, Gemmi M, Athanassiou A, Mazzolai B, Mattoli V. Pharm Res. 2013 May 10.
  • Uptake of cerium oxide nanoparticles and their influences on functions of A549 cells. Zhou X, Wang B, Chen Y, Mao Z, Gao C. J Nanosci Nanotechnol. 2013 Jan;13(1):204-15.
  • Pulmonary Cerium Dioxide Nanoparticle Exposure Differentially Impairs Coronary and Mesenteric Arteriolar Reactivity. Minarchick VC, Stapleton PA, Porter DW, Wolfarth MG, Ciftyürek E, Barger M, Sabolsky EM, Nurkiewicz TR. Cardiovasc Toxicol. 2013 May 5.
  • Hydrolysis of Tetravalent Cerium for a Simple Route to Nanocrystalline Cerium Dioxide: An In Situ Spectroscopic Study of Nanocrystal Evolution. Ikeda-Ohno A, Hennig C, Weiss S, Yaita T, Bernhard G. Chemistry. 2013 Jun 3;19(23):7348-7360. doi: 10.1002/chem.201204101.
  • Synthesis, Electrochemistry, and Reactivity of Cerium(III/IV) Methylene-Bis-Phenolate Complexes. Mahoney BD, Piro NA, Carroll PJ, Schelter EJ. Inorg Chem. 2013 May 20;52(10):5970-7. doi: 10.1021/ic400202r.
  • Cerium Oxide Nanoparticles are More Toxic than Equimolar Bulk Cerium Oxide in Caenorhabditis elegans. Arnold MC, Badireddy AR, Wiesner MR, Di Giulio RT, Meyer JN. Arch Environ Contam Toxicol. 2013 Apr 26.
  • Grain size dependence of dielectric relaxation in cerium oxide as high-k layer. Zhao C, Zhao CZ, Werner M, Taylor S, Chalker P, King P. Nanoscale Res Lett. 2013 Apr 15;8(1):172. doi: 10.1186/1556-276X-8-172.
  • Study of the electrocatalytic activity of cerium oxide and gold-studded cerium oxide nanoparticles using a Sonogel-Carbon material as supporting electrode: electroanalytical study in apple juice for babies. Abdelrahim MY, Benjamin SR, Cubillana-Aguilera LM, Naranjo-Rodríguez I, de Cisneros JL, Delgado JJ, Palacios-Santander JM. Sensors (Basel). 2013 Apr 12;13(4):4979-5007. doi: 10.3390/s130404979.
  • Optical properties of cerium doped oxyfluoroborate glass. Bahadur A, Dwivedi Y, Rai SB. Spectrochim Acta A Mol Biomol Spectrosc. 2013 Jun;110:400-3. doi: 10.1016/j.saa.2013.03.066.
  • Effects of cerium oxide nanoparticles on the proliferation, differentiation, and mineralization function of primary osteoblasts in vitro. Zhou G, Gu G, Li Y, Zhang Q, Wang W, Wang S, Zhang J. Biol Trace Elem Res. 2013 Jun;153(1-3):411-8. doi: 10.1007/s12011-013-9655-2.
  • Cerium oxide nanoparticles: potential applications for cancer and other diseases. Wason MS, Zhao J. Am J Transl Res. 2013;5(2):126-31.
  • Gene-expression changes in cerium chloride-induced injury of mouse hippocampus. Cheng Z, Zhao H, Ze Y, Su J, Li B, Sheng L, Zhu L, Guan N, Gui S, Sang X, Zhao X, Sun Q, Wang L, Cheng J, Hu R, Hong F. PLoS One. 2013;8(4):e60092. doi: 10.1371/journal.pone.0060092.
  • Computational study of the cerium(III) ion in aqueous environment. Lutz OM, Hofer TS, Randolf BR, Rode BM. Chem Phys Lett. 2012 Jun 29;539-540(8):50-53.