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

CHEMICAL
IDENTIFIER		 Formula CAS No. PubChem SID PubChem CID MDL No. EC No Beilstein
Re. No.		 SMILES
Identifier 		InChI
Identifier		 InChI
Key
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 is a Block D, Group 8, Period 6 element. The number of electrons in each of Osmium's shells is 2, 8, 18, 32, 14, 2 and its electronic configuration is [Xe] 4f14 5d6 6s2. In its elemental form osmium's CAS number is 7440-04-2. The osmium atom has a radius of 133.8.pm and its Van der Waals radius is 200.pm. Osmium has the highest melting point and the lowest vapor pressure ofany of the platinum group of metals. The metal is almost entirely used to produce very hard alloys with other metals of the platinum group. In 2013, researchers from the Ruhr University Bocham and the National University of Ireland, Galway synthesized a new type of redox polymer containing osmium that shows promise as an enzyme for glucose-oxidizing enzyme electrodes in biosensors or biofuel cells. Osmium in the form of tetroxide (OsO4) is very toxic and can cause eye, lung and skin damage. Osmium Bohr ModelOsmium tetroxide has recently been used to detect fingerprints and as an aid to stain fatty tissue for microscope slides. Osmium is available as metal and compounds with purities from Elemental Osmium99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Osmium, the least abundant stable element in the earth's crust, is found in the alloys osmiridium and iridiosmium and as an uncombined element. Osmium was first discovered by Smithson Tennant in 1803. The origin of the name Osmium comes from the Greek word osme meaning a smell or odor. See Osmium research below.



HEALTH, SAFETY & TRANSPORTATION INFORMATION
Danger
H228-H315-H318-H335
F,Xi
11-37/38-41
16-26-36/37/39
RN1100000
UN 3089 4.1/PG 2
nwg
Exclamation Mark-Acute Toxicity Flame-Flammables Corrosion-Corrosive to metals    

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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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Recent Research & Development for Osmium

  • Striking Difference in Antiproliferative Activity of Ruthenium- and Osmium-Nitrosyl Complexes with Azole Heterocycles. Büchel GE, Gavriluta A, Novak M, Meier SM, Jakupec MA, Cuzan O, Turta C, Tommasino JB, Jeanneau E, Novitchi G, Luneau D, Arion VB. Inorg Chem. 2013 May 9.
  • Carbon monoxide adsorption on platinum-osmium and platinum-ruthenium-osmium mixed nanoparticles. Dimakis N, Navarro NE, Smotkin ES. J Chem Phys. 2013 May 7;138(17):174704. doi: 10.1063/1.4802817.
  • Osmium(III) and Osmium(V) Complexes Bearing a Macrocyclic Ligand: A Simple and Efficient Catalytic System for cis-Dihydroxylation of Alkenes with Hydrogen Peroxide. Sugimoto H, Ashikari K, Itoh S. Chem Asian J. 2013 May 7. doi: 10.1002/asia.201300329.
  • Synthesis, Steady-State, and Femtosecond Transient Absorption Studies of Resorcinol Bound Ruthenium(II)- and Osmium(II)-polypyridyl Complexes on Nano-TiO2 Surface in Water. Banerjee T, Kaniyankandy S, Das A, Ghosh HN. Inorg Chem. 2013 May 6;52(9):5366-77. doi: 10.1021/ic4003548.
  • Asymmetric Transfer Hydrogenation of Ketones Catalyzed by Enantiopure Osmium(II) Pybox Complexes. Vega E, Lastra E, Gamasa MP. Inorg Chem. 2013 May 2.
  • POP-Pincer Osmium-Polyhydrides: Head-to-Head (Z)-Dimerization of Terminal Alkynes. Alós J, Bolaño T, Esteruelas MA, Oliván M, Oñate E, Valencia M. Inorg Chem. 2013 Apr 26.
  • Emissive Osmium(II) Complexes with Tetradentate Bis(pyridylpyrazolate) Chelates. Chang SH, Chang CF, Liao JL, Chi Y, Zhou DY, Liao LS, Jiang TY, Chou TP, Li EY, Lee GH, Kuo TY, Chou PT. Inorg Chem. 2013 Apr 26.
  • On line vapor generation of osmium based on solution cathode glow discharge for the determination by ICP-OES. Zhu Z, Huang C, He Q, Xiao Q, Liu Z, Zhang S, Hu S. Talanta. 2013 Mar 15;106:133-6. doi: 10.1016/j.talanta.2012.12.010.
  • Three-Dimensional Structural Analysis of MgO-Supported Osmium Clusters by Electron Microscopy with Single-Atom Sensitivity. Aydin C, Kulkarni A, Chi M, Browning ND, Gates BC. Angew Chem Int Ed Engl. 2013 May 10;52(20):5262-5. doi: 10.1002/anie.201300238.
  • MgO-supported bimetallic catalysts consisting of segregated, essentially molecular rhodium and osmium species. Kistler JD, Serna P, Gates BC. Dalton Trans. 2013 Apr 16.
  • Homogeneous Electrochemical Detection of Hippuric Acid in Urine Based on the Osmium-Antigen Conjugate. Jeon WY, Choi YB, Kim HH. Chemphyschem. 2013 Apr 15. doi: 10.1002/cphc.201300039.
  • Structural and relative stabilities, electronic properties and possible reactive routing of osmium and ruthenium borides from first-principles calculations. Wang Y, Yao T, Wang LM, Yao J, Li H, Zhang J, Gou H. Dalton Trans. 2013 Apr 23;42(19):7041-50. doi: 10.1039/c3dt32918f.
  • Thioether-based anchimeric assistance for asymmetric coordination chemistry with ruthenium(II) and osmium(II). Chen LA, Ding X, Gong L, Meggers E. Dalton Trans. 2013 Apr 28;42(16):5623-6. doi: 10.1039/c3dt00015j.
  • 9,10-Phenanthrenesemiquinone radical complexes of ruthenium(iii), osmium(iii) and rhodium(iii) and redox series. Biswas MK, Patra SC, Maity AN, Ke SC, Weyhermüller T, Ghosh P. Dalton Trans. 2013 Apr 16;42(18):6538-52. doi: 10.1039/c3dt00038a.
  • Oxidative quenching within photosensitizer-acceptor dyads based on bis(bidentate) phosphine-connected osmium(II) bipyridyl light absorbers and reactive metal sites. Eller S, Trettenbrein B, Oberhuber D, Strabler C, Gutmann R, van der Veer WE, Ruetz M, Kopacka H, Obendorf D, Brüggeller P. Inorg Chem Commun. 2012 Sep;23(6):41-45.
  • Ruthenium- and osmium-arene complexes of 8-substituted indolo[3,2-c]quinolines: Synthesis, X-ray diffraction structures, spectroscopic properties, and antiproliferative activity. Filak LK, Göschl S, Hackl S, Jakupec MA, Arion VB. Inorganica Chim Acta. 2012 Dec 1;393(7):252-260.
  • Azo complexes of osmium(II): preparation and reactivity of organic azide and hydrazine derivatives. Albertin G, Antoniutti S, Bonaldo L, Botter A, Castro J. Inorg Chem. 2013 Mar 18;52(6):2870-9. doi: 10.1021/ic302483e.
  • Metal-Arene Complexes with Indolo[3,2-c]-quinolines: Effects of Ruthenium vs Osmium and Modifications of the Lactam Unit on Intermolecular Interactions, Anticancer Activity, Cell Cycle, and Cellular Accumulation. Filak LK, Göschl S, Heffeter P, Ghannadzadeh Samper K, Egger AE, Jakupec MA, Keppler BK, Berger W, Arion VB. Organometallics. 2013 Feb 11;32(3):903-914.
  • Cancer cell cytotoxicity of cyclometalated compounds obtained with osmium(II) complexes. Boff B, Gaiddon C, Pfeffer M. Inorg Chem. 2013 Mar 4;52(5):2705-15. doi: 10.1021/ic302779q.
  • Three-dimensional ultra-structures of myelin and the axons in the spinal cord: Application of SEM with the osmium maceration method to the central nervous system in two mouse models. Nomura T, Bando Y, Bochimoto H, Koga D, Watanabe T, Yoshida S. Neurosci Res. 2013 Mar;75(3):190-7. doi: 10.1016/j.neures.2013.01.009.