Barium selenide

Barium selenide
Identifiers

CAS Number	1304-39-8^Y
3D model (JSmol)	Interactive image
ChemSpider	8010098
ECHA InfoCard	100.013.755
EC Number	215-130-5
PubChem CID	9834377
UNII	42Z7S6FJNV
CompTox Dashboard (EPA)	DTXSID7061649
InChI InChI=1S/Ba.Se/q+2;-2 Key: RJWLRCHYHHXJLX-UHFFFAOYSA-N
SMILES [Se-2].[Ba+2]
Properties
Chemical formula	BaSe
Molar mass	216.298 g·mol⁻¹
Appearance	white solid
Structure^[1]
Crystal structure	NaCl type (cubic)
Space group	Fm3m (No. 225)
Lattice constant	a = 662.9 pm
Formula units (Z)	4
Hazards
GHS labelling:^[2]
Pictograms
Signal word	Danger
Hazard statements	H301, H331, H373, H410
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical compound

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]

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 + 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

Related compounds

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

References

^ ^a ^b 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.
^ "C&L Inventory". echa.europa.eu.
^ ^a ^b P. Ehrlich (1963). "Alkaline Earth Metals". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. Vol. 2pages=939. NY, NY: Academic Press.
^ 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)
^ 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)