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| Identifiers | |
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| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.013.755 
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| CompTox Dashboard (EPA) | |
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| Properties | |
| Chemical formula | BaSe |
| Molar mass | 216.298 g·mol |
| Appearance | white solid |
| Structure | |
| Crystal structure | NaCl type (cubic) |
| Space group | Fm3m (No. 225) |
| Lattice constant | a = 662.9 pm |
| Formula units (Z) | 4 |
| Hazards | |
| GHS labelling: | |
| Pictograms |   
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| 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 , 100 kPa). Infobox references | |
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.
BaSe has the lowest energy band gap among alkaline earth chalcogenides.
Preparation
Barium selenide can be obtained by the reduction of barium selenate in hydrogen flow:.
- BaSeO4 + H2 → BaSe + 4 H2O
It can also be obtained by reacting selenium with barium carbonate or barium oxide at high temperature:
- 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.
References
- ^ 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.
- ^ 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)
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