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Osmium Tetroxide

CAS #: 20816-12-0
Linear Formula:
OsO4
MDL Number
MFCD00011150
EC No.:
N/A

ORDER

Product Product Code ORDER SAFETY DATA Technical data
(2N) 99% Osmium Tetroxide OS-OX4-02 SDS > Data Sheet >
(3N) 99.9% Osmium Tetroxide OS-OX4-03 SDS > Data Sheet >
(4N) 99.99% Osmium Tetroxide OS-OX4-04 SDS > Data Sheet >
(5N) 99.999% Osmium Tetroxide OS-OX4-05 SDS > Data Sheet >
WHOLESALE/SKU 0000-742-{{nid}}

Osmium Tetroxide Properties (Theoretical)

Compound Formula O4Os
Molecular Weight 254.23
Appearance Black or Yellow-Brown Crystalline Powder
Melting Point 40.25 °C (104.5 °F)
Boiling Point 129.7 °C (265.5 °F)
Density 1.04 g/cm3
Solubility in H2O N/A
Exact Mass 255.941139
Monoisotopic Mass 255.941139

Osmium Tetroxide Health & Safety Information

Signal Word Danger
Hazard Statements H300-H310-H314-H330-H334
Hazard Codes T+
Precautionary Statements P260-P264-P280-P284-P301 + P310-P302 + P350
Flash Point Not applicable
Risk Codes 26/27/28-34
Safety Statements 7/9-26-45
RTECS Number RN1140000
Transport Information UN 2471 6.1 / PGI
WGK Germany 1
GHS Pictogram
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Corrosive - GHS05
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Health Hazard - GHS08
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Skull and Crossbones - GHS06
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Exclamation Point - GHS07

About Osmium Tetroxide

Oxide IonOsmium Tetroxide is a highly insoluble thermally stable Osmium source suitable for glass, optic and ceramic applications. Osmium oxide is a volatile black to yellow-brown solid with an acrid High Purity (99.999%) Osmium Tetroxide (OsO2) Powderodor that disolves in water to form osmic acid. Oxide compounds are not conductive to electricity. However, certain perovskite structured oxides are electronically conductive finding application in the cathode of solid oxide fuel cells and oxygen generation systems. They are compounds containing at least one oxygen anion and one metallic cation. They are typically insoluble in aqueous solutions (water) and extremely stable making them useful in ceramic structures as simple as producing clay bowls to advanced electronics and in light weight structural components in aerospace and electrochemical applications such as fuel cells in which they exhibit ionic conductivity. Metal oxide compounds are basicanhydrides and can therefore react with acids and with strong reducing agents in redox reactions. Osmium Tetroxide is also available in pellets, pieces, sputtering targets, tablets, and nanopowder (from American Elements' nanoscale production facilities). Osmium Tetroxide is generally immediately available in most volumes. Ultra high purity, high purity, submicron and nanopowder forms may be considered. Additional technical, research and safety (MSDS) information is available.

Synonyms

Osmium tetraoxide, Osmium(VIII) oxide, Osmic acid, Tetraoxoosmium, Perosmic oxide, (T-4)-Osmium oxide, Perosmic acid anhydride, Osmic acid anhydride

Chemical Identifiers

Linear Formula OsO4
Pubchem CID 30318
MDL Number MFCD00011150
EC No. N/A
IUPAC Name tetraoxoosmium
Beilstein/Reaxys No. N/A
SMILES O=[Os](=O)(=O)=O
InchI Identifier InChI=1S/4O.Os
InchI Key VUVGYHUDAICLFK-UHFFFAOYSA-N
Chemical Formula
Molecular Weight
Standard InchI
Appearance
Melting Point
Boiling Point
Density

Packaging Specifications

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 Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements

See more Osmium products. Osmium (atomic symbol: Os, atomic number: 76) is a Block D, Group 8, Period 6 element with an atomic weight of 190.23. Osmium Bohr ModelThe 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 OsmiumIn 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.