Barium selenide

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Barium selenide
Barium selenide.vk.jpg
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.013.755 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 215-130-5
PubChem CID
UNII
  • InChI=1S/Ba.Se/q+2;-2
    Key: RJWLRCHYHHXJLX-UHFFFAOYSA-N
  • [Se-2].[Ba+2]
Properties
BaSe
Molar mass 216.298 g·mol−1
Appearancewhite solid
Structure [1]
NaCl type (cubic)
Fm3m (No. 225)
a = 662.9 pm
4
Hazards
GHS labelling: [2]
GHS-pictogram-skull.svg GHS-pictogram-silhouette.svg GHS-pictogram-pollu.svg
Danger
H301, H331, H373, H410
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Barium selenide is an inorganic compound, with the chemical formula of BaSe. It is a white solid although typically samples are colored owing to the effects of air oxidation. [3]

Contents

BaSe has the lowest energy band gap among alkaline earth chalcogenides. [4]

Preparation

Barium selenide can be obtained by the reduction of barium selenate in hydrogen flow:. [3] [5]

BaSeO4 + 4 H2 → BaSe + 4 H2O

It can also be obtained by reacting selenium with barium carbonate or barium oxide at high temperature:[ citation needed ]

2 BaCO3 + 5 Se → 2 BaSe + 3 SeO2 + CO2

Barium can also forms a series of polyselenide compounds, such as Ba2Se3, BaSe2 and BaSe3. [1]

References

  1. 1 2 Okamoto, H (August 1991). "The Ba-Se (Barium-Selenium) system" . Journal of Phase Equilibria. 12 (4): 467–469. doi:10.1007/BF02645971. ISSN   1054-9714. S2CID   95845653.
  2. ↑ "C&L Inventory". echa.europa.eu.
  3. 1 2 P. Ehrlich (1963). "Alkaline Earth Metals". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. Vol. 2pages=939. NY, NY: Academic Press.
  4. ↑ V. V. Sobolev, D. А. Merzlyakov, V. Val. Sobolev (March 2017). "A Study of the Optical Properties of Barium Selenide Crystals. I. Fundamental Functions" . Journal of Applied Spectroscopy. 84 (1): 59–65. Bibcode:2017JApSp..84...59S. doi:10.1007/s10812-017-0427-1. ISSN   0021-9037. S2CID   254609774 . Retrieved 2018-08-09.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  5. ↑ Handbuch der präparativen anorganischen Chemie Bd. 2. / Unter Mitarb. von M. Baudler ... Marianne Baudler (3., umgearb. Aufl ed.). Stuttgart. 1978. p. 949. ISBN   978-3-432-87813-3. OCLC   310719490.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)
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