American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia)and follows applicable ASTM testing standards.Typical and custom packaging is available. See safety data and research below and pricing/lead time above. American Elements specializes in producing Osmium as rolled sheets in various thicknesses and sizes. Most sheets are produced from cast Ingots for use in coating and thin film Chemical Vapor Deposition (CVD) and Physical Vapor Deposition (PVD) processes including Thermal and Electron Beam (E-Beam) Evaporation, Low Temperature Organic Evaporation, Atomic Layer Deposition (ALD), Organometallic and Chemical Vapor Deposition (MOCVD) for specific applications such as fuel cells and solar energy. Thickness can range from 0.04" to 0.25" for all metals. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. 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 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. We also produce Osmium as rods, powder and plates. Other shapes are available by request.
Osmium 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 it's Van der Waals radius is 200.pm. Osmium tetroxide (OsO4) can cause eye, lung and skin damage which makes it very toxic. Osmium has the highest melting point and the lowest vapor pressure of any of the platinum group of metals. Osmium tetroxide has recently been used to detect fingerprints and as an aid to stain fatty tissue for microscope slides. The metal is almost entirely used to produce very hard alloys with other metals of the platinum group. Osmium is available as metal and compounds with purities from 99% 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 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.
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). Bullion and bar forms are best if purchasing solely for physical possession and risk exposure.
Dimethylaminoborane (H(2)BNMe(2)) Coordination to Late Transition Metal Centers: Snapshots of the B-H Oxidative Addition Process.
Bénac-Lestrille G, Helmstedt U, Vendier L, Alcaraz G, Clot E, Sabo-Etienne S.
Inorg Chem. 2011 Sep 28. [Epub ahead of print]
PMID:
21954867
[PubMed - as supplied by publisher]
Matrix infrared spectroscopic and computational studies on the reactions of osmium and iron atoms with carbon monoxide and dinitrogen mixtures.
Lu ZH, Xu Q.
J Phys Chem A. 2011 Oct 6;115(39):10783-8. Epub 2011 Sep 14.
PMID:
21877714
[PubMed - in process]
Compartmentalization of pancreatic secretory zymogen granules as revealed by low-voltage transmission electron microscopy.
Bendayan M, Londono I, Paransky E.
J Histochem Cytochem. 2011 Oct;59(10):899-907. Epub 2011 Aug 10.
PMID:
21832147
[PubMed - in process]
Electrochemistry of redox-active self-assembled monolayers.
Eckermann AL, Feld DJ, Shaw JA, Meade TJ.
Coord Chem Rev. 2010 Aug 1;254(15-16):1769-1802.
PMID:
20563297
[PubMed]
Redox reactivity of photogenerated osmium(ii) complexes.
Dempsey JL, Winkler JR, Gray HB.
Dalton Trans. 2011 Sep 2. [Epub ahead of print]
PMID:
21892445
[PubMed - as supplied by publisher]
EFTEM cytochemistry and sexual dimorphism of secretory granules in male and female hamster submandibular glands.
Moriguchi K, Utsumi M, Ohno N.
Okajimas Folia Anat Jpn. 2011 May;88(1):11-6.
PMID:
21882591
[PubMed - indexed for MEDLINE]
Structure-activity relationships for organometallic osmium arene phenylazopyridine complexes with potent anticancer activity.
Fu Y, Habtemariam A, Basri AM, Braddick D, Clarkson GJ, Sadler PJ.
Dalton Trans. 2011 Aug 22. [Epub ahead of print]
PMID:
21860862
[PubMed - as supplied by publisher]
Ultrastructural characterization of porcine oocytes and adjacent follicular cells during follicle development: lipid component evolution.
Silva RC, Báo SN, P R Jivago JL, Lucci CM.
Theriogenology. 2011 Aug 9. [Epub ahead of print]
PMID:
21835450
[PubMed - as supplied by publisher]
Synthesis and Properties of Oxo-carboxylato- and Dioxo-Bridged Diosmium Complexes of Tris(2-pyridylmethyl)amine.
Sugimoto H, Kitayama K, Ashikari K, Matsunami C, Ueda N, Umakoshi K, Hosokoshi Y, Sasaki Y, Itoh S.
Inorg Chem. 2011 Sep 19;50(18):9014-23. Epub 2011 Aug 9.
PMID:
21827180
[PubMed - in process]
Incidence of pulmonary fat embolism at autopsy: an undiagnosed epidemic.
Eriksson EA, Pellegrini DC, Vanderkolk WE, Minshall CT, Fakhry SM, Cohle SD.
J Trauma. 2011 Aug;71(2):312-5.
PMID:
21825932
[PubMed - in process]
Use of different morphological techniques to analyze the cellular composition of the adult zebrafish optic tectum.
Corbo CP, Othman NA, Gutkin MC, Alonso AD, Fulop ZL.
Microsc Res Tech. 2011 Aug 5. doi: 10.1002/jemt.21061. [Epub ahead of print]
PMID:
21823204
[PubMed - as supplied by publisher]
Ultrastructural changes in the equine colonic mucosa after ischaemia and reperfusion.
Grosche A, Morton AJ, Graham AS, Sanchez LC, Blikslager AT, Polyak MM, Freeman DE.
Equine Vet J. 2011 Aug;43 Suppl 39:8-15. doi: 10.1111/j.2042-3306.2011.00402.x.
PMID:
21790749
[PubMed - in process]
Ultracentrifugation Deforms Unfixed Influenza A Virions.
Sugita Y, Noda T, Sagara H, Kawaoka Y.
J Gen Virol. 2011 Jul 27. [Epub ahead of print]
PMID:
21795472
[PubMed - as supplied by publisher]
Focussed ion beam milling and scanning electron microscopy of brain tissue.
Knott G, Rosset S, Cantoni M.
J Vis Exp. 2011 Jul 6;(53). pii: 2588. doi: 10.3791/2588.
PMID:
21775953
[PubMed - in process]
On-chip DNA methylation analysis using osmium complexation.
Sugizaki K, Umemoto T, Okamoto A.
J Nucleic Acids. 2011;2011:480570. Epub 2011 May 15.
PMID:
21772994
[PubMed - in process]
Histochemical and ultrastructural changes of sternomastoid muscle in aged Wistar rats.
Ciena AP, de Almeida SR, Alves PH, Bolina-Matos Rde S, Dias FJ, Issa JP, Iyomasa MM, Watanabe IS.
Micron. 2011 Dec;42(8):871-6. Epub 2011 Jun 13.
PMID:
21767955
[PubMed - in process]
Quantitative three-dimensional imaging of live avian embryonic morphogenesis via micro-computed tomography.
Henning AL, Jiang MX, Yalcin HC, Butcher JT.
Dev Dyn. 2011 Aug;240(8):1949-57. doi: 10.1002/dvdy.22694.
PMID:
21761480
[PubMed - in process]
En route to osmium analogues of KP1019: synthesis, structure, spectroscopic properties and antiproliferative activity of trans-[Os(IV)Cl4(Hazole)2].
Büchel GE, Stepanenko IN, Hejl M, Jakupec MA, Keppler BK, Arion VB.
Inorg Chem. 2011 Aug 15;50(16):7690-7. Epub 2011 Jul 8.
PMID:
21739939
[PubMed - in process]
Structure and bonding analysis of dimethylgallyl complexes of iron, ruthenium, and osmium [(?5-C5H5)(CO)2M(GaMe2)] and [(?5-C5H5)(Me3P)2M(GaMe2)].
Pandey KK.
J Phys Chem A. 2011 Aug 4;115(30):8578-85. Epub 2011 Jul 13.
PMID:
21726095
[PubMed - in process]
[Structure and ultrastructure of the ovary of Cichlasoma urophthalmus (Osteichthyes: Cichlidae)].
Viedma R, Franco J, Bedia C, Guedea Fernández G, Villa Zevallos HB, Barrera Escorcia H.
Rev Biol Trop. 2011 Jun;59(2):743-50. Spanish.
PMID:
21721236
[PubMed - indexed for MEDLINE]
Osmium 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 it's Van der Waals radius is 200.pm. Osmium tetroxide (OsO4) can cause eye, lung and skin damage which makes it very toxic. Osmium has the highest melting point and the lowest vapor pressure of 
any of the platinum group of metals. Osmium tetroxide has recently been used to detect fingerprints 
and as an aid to stain fatty tissue for microscope slides. The metal is almost entirely used to produce very hard alloys with other metals of the platinum group. Osmium is available as metal and compounds with purities from 99% 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 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.
