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Selenium Oxide

CAS #: 7446-08-4
Linear Formula:
SeO2
MDL Number
MFCD00003562
EC No.:
231-194-7

ORDER

Product Product Code ORDER SAFETY DATA Technical data
(2N) 99% Selenium Oxide SE-OX-02 SDS > Data Sheet >
(3N) 99.9% Selenium Oxide SE-OX-03 SDS > Data Sheet >
(4N) 99.99% Selenium Oxide SE-OX-04 SDS > Data Sheet >
(5N) 99.999% Selenium Oxide SE-OX-05 SDS > Data Sheet >
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Selenium Oxide Properties (Theoretical)

Compound Formula O2Se
Molecular Weight 110.96
Appearance White Crystals
Melting Point 340 °C (644 °F)
Boiling Point 350 °C (662 °F)
Density 3.95 g/cm3
Solubility in H2O N/A
Exact Mass 111.906 g/mol
Monoisotopic Mass 111.906351 Da

Selenium Oxide Health & Safety Information

Signal Word Danger
Hazard Statements H301 + H331-H373-H410
Hazard Codes T,N
Precautionary Statements P261-P273-P301 + P310-P311-P501
Flash Point Not applicable
Risk Codes 23/25-33-50/53
Safety Statements 20/21-28-45-60-61
RTECS Number VS8575000
Transport Information UN 3283 6.1 / PGIII
WGK Germany 2
GHS Pictogram
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Skull and Crossbones - GHS06
,
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Health Hazard - GHS08
,
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Hazardous to the Aquatic Environment - GHS09

About Selenium Oxide

Oxide IonSelenium Oxide (or Selenium Dioxide) is available in many powder and crystal sizes. Ultra high purity and high purity forms include powder, submicron powder and nanoscale. Selenium Oxide is generally immediately available in most volumes. Oxide compounds are not conductive to electricity. However, certain perovskite structured oxides are electronically conductive finding application in theHigh Purity (99.999%) Selenium Oxide (SeO2) Powder 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 basic anhydrides and can therefore react with acids and with strong reducing agents in redoxreactions. Selenium Oxide is also available in pellets, pieces, powder, sputtering targets, tablets, and nanopowder (from American Elements' nanoscale production facilities). Metallic oxide compounds are also available from American Elements' nanoscale production facilities. 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. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Synonyms

Selenium dioxide, Oxoselane oxide, Selenium(IV) oxide, Selenious anhydride, Selenium dioxide dimer, Selenous acid solution, NSC 56753, 200107, 204315, 213365

Chemical Identifiers

Linear Formula SeO2
Pubchem CID 24007
MDL Number MFCD00003562
EC No. 231-194-7
IUPAC Name Selenium dioxide
Beilstein/Reaxys No. N/A
SMILES O=[SeH2]=O
InchI Identifier InChI=1S/O2Se/c1-3-2
InchI Key JPJALAQPGMAKDF-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

Selenium Bohr ModelSee more Selenium products. Selenium (atomic symbol: Se, atomic number: 34) is a Block P, Group 16, Period 4 element with an atomic radius of 78.96. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its electron configuration is [Ar] 3d10 4s2 4p4. The selenium atom has a radius of 120 pm and a Van der Waals radius of 190 pm. Selenium is a non-metal with several allotropes: a black, vitreous form with an irregular crystal structure three red-colored forms with monoclinic crystal structures and a gray form with a hexagonal crystal structure, the most stable and dense form of the element. Elemental SeleniumOne of the most common uses for selenium is in glass production the red tint that it lends to glass neutralizes green or yellow tints from impurities in the glass materials. Selenium was discovered and first isolated by Jöns Jakob Berzelius and Johann Gottlieb Gahn in 1817. The origin of the name Selenium comes from the Greek word "Selênê," meaning moon.