Osmium Chunk

High Purity Os Chunk
CAS 7440-04-2

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

Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.
Os 7440-04-2 24855959 23937 MFCD00011147 231-114-0 N/A [Os] InChI=1S/Os SYQBFIAQOQZEGI-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
190.23 Yellow Crystalline Solid

22.57 gm/cc

N/A 3045 °C 5027 °C N/A 9.5 microhm-cm @ 20°C

2.2 Paulings

0.03127 Cal/g/K @ 25°C 162 K-Cal/gm atom at 5027°C

7.0 Cal/gm mole

Safety Data Sheet

High Purity Chunk American Elements specializes in producing high purity Osmium 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 Osmium as rod, pellets, powder, pieces, disc, ingot, wire, and in compound forms, such as oxide. Other shapes are available by request.

Osmium (Os) atomic and molecular weight, atomic number and elemental symbolOsmium (atomic symbol: Os, atomic number: 76) is a Block D, Group 8, Period 6 element with an atomic weight of 190.23.Osmium Bohr Model The number of electrons in each of osmium's shells is [2, 8, 18, 32, 14, 2] and its electron configuration is [Xe] 4f14 5d6 6s2. The osmium atom has a radius of 135 pm and a Van der Waals radius of 216 pm. Osmium was discovered and first isolated by Smithson Tennant in 1803. Elemental Osmium In its elemental form, osmium has a silvery blue cast apperance. Osmium has the highest melting point and the lowest vapor pressure of any of the platinum group of metals; it is also the densest naturally ocurring element.. Osmium is the least abundant stable element in the earth's crust. It is found in the alloys osmiridium and iridiosmium and as a free element. The origin of the name Osmium comes from the Greek word "osme," meaning a smell or odor. For more information on osmium, including properties, safety data, research, and American Elements' catalog of osmium products, visit the Osmium Information Center.

UN 3089 4.1/PG 2
Exclamation Mark-Acute Toxicity Flame-Flammables Corrosion-Corrosive to metals    

Osmium Telluride Bis(cyclopentadienyl) osmium Osmium Oxide Pellets Osmium Rod Osmium Wire
Osmium Oxide Nanopwder Osmium Foil Osmium Fluoride Osmium Sputtering Target Osmium Oxide
Osmium Powder Osmium Chloride Osmium Pellet Osmium Bar Osmium Metal
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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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Recent Research & Development for Osmium

  • Europium phosphomolybdate and osmium metallopolymer multi-functional LbL films: Redox and electrocatalytic properties. Fernandes DM, Vos JG, Freire C. J Colloid Interface Sci. 2014
  • Helicene-grafted vinyl- and carbene-osmium complexes: an example of acid-base chiroptical switching. Anger E, Srebro M, Vanthuyne N, Roussel C, Toupet L, Autschbach J, Réau R, Crassous J. Chem Commun (Camb). 2014
  • Ruthenium, Rhodium, Osmium, and Iridium Complexes of Osazones (Osazones = Bis-Arylhydrazones of Glyoxal): Radical versus Nonradical States. Patra SC, Weyhermüller T, Ghosh P. Inorg Chem. 2014
  • Rapid adaptation of some phytoplankton species to osmium as a result of spontaneous mutations. Marvá F, García-Balboa C, Baselga-Cervera B, Costas E. Ecotoxicology. 2014
  • Density Functional Theory Study of Oxygen-Atom Insertion into Metal-Methyl Bonds of Iron(II), Ruthenium(II), and Osmium(II) Complexes: Study of Metal-Mediated C-O Bond Formation. Pardue DB, Mei J, Cundari TR, Gunnoe TB. Inorg Chem. 2014
  • Rapid determination of osmium concentrations and 187Os/188Os of crude oils and source rocks by coupling high pressure, high temperature digestion with sparging OsO4 into a multi-collector ICPMS. Sen IS, Peucker-Ehrenbrink B. Anal Chem. 2014
  • Ruthenium(ii) and osmium(ii) 1,2,3-triazolylidene organometallics: a preliminary investigation into the biological activity of 'click' carbene complexes. Kilpin KJ, Crot S, Riedel T, Kitchen JA, Dyson PJ. Dalton Trans. 2014 Jan.
  • A multinuclear (1)H, (13)C and (11)B solid-state MAS NMR study of 16- and 18-electron organometallic ruthenium and osmium carborane complexes. Barry NP, Kemp TF, Sadler PJ, Hanna JV. Dalton Trans. 2014
  • Reactivity of Nitrido Complexes of Ruthenium(VI), Osmium(VI), and Manganese(V) Bearing Schiff Base and Simple Anionic Ligands. Man WL, Lam WW, Lau TC. Acc Chem Res. 2014
  • Spectrophotometric determination of hydrogen peroxide with osmium(VIII) and m-carboxyphenylfluorone. Hoshino M, Kamino S, Doi M, Takada S, Mitani S, Yanagihara R, Asano M, Yamaguchi T, Fujita Y. Spectrochim Acta A Mol Biomol Spectrosc. 2014 Jan.
  • Anion Sensing by Solution- and Surface-Assembled Osmium(II) Bipyridyl Rotaxanes. Lehr J, Lang T, Blackburn OA, Barendt TA, Faulkner S, Davis JJ, Beer PD. Chemistry. 2013 Nov.
  • Ruthenium(ii) and osmium(ii) 1,2,3-triazolylidene organometallics: a preliminary investigation into the biological activity of 'click' carbene complexes. Kilpin KJ, Crot S, Riedel T, Kitchen JA, Dyson PJ. Dalton Trans. 2013 Nov.
  • Osmium Tetroxide Labeling of (Poly)Methyl Methacrylate Corrosion Casts for Enhancement of Micro-CT Microvascular Imaging. Microsc Microanal. 2013 | first author:Mondy WL
  • Synthesis and antitumor activity of a series of osmium(VI) nitrido complexes bearing quinolinolato ligands. Tang Q, Ni WX, Leung CF, Man WL, Lau KK, Liang Y, Lam YW, Wong WY, Peng SM, Liu GJ, Lau TC. Chem Commun (Camb). 2013 Nov.
  • Mirror-image organometallic osmium arene iminopyridine halido complexes exhibit similar potent anticancer activity. Chemistry. 2013 create date:2013/10/12 | first author:Fu Y
  • A comparative DFT study on aquation and nucleobase binding of ruthenium (II) and osmium (II) arene complexes. Wang H, Zeng X, Zhou R, Zhao C. J Mol Model. 2013 Sep.
  • MRT Letter: High resolution SEM imaging of nano-architecture of cured urea-formaldehyde resin using plasma coating of osmium. Microsc Res Tech. 2013 create date:2013/08/08 | first author:Park BD
  • Rapid and direct determination of fructose in food: a new osmium-polymer mediated biosensor. Food Chem. 2013 | first author:Antiochia R
  • Anion Sensing by Solution- and Surface-Assembled Osmium(II) Bipyridyl Rotaxanes. Chemistry. 2013 | first author:Lehr J
  • High energy resolution core-level X-ray spectroscopy for electronic and structural characterization of osmium compounds. Phys Chem Chem Phys. 2013 | first author:Lomachenko KA