Chemistry:Barium hexaboride
From HandWiki
| Names | |
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| IUPAC name
Barium boride
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| Other names
Barium hexaboride
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| Identifiers | |
3D model (JSmol)
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PubChem CID
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| Properties[1] | |
| BaB 6 | |
| Molar mass | 202.19 g·mol−1 |
| Appearance | Black, cubic crystals |
| Density | 4.36 g/cm3 |
| Melting point | 2,070 °C (3,760 °F; 2,340 K) |
| Insoluble | |
| Solubility in acids | Soluble |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Barium hexaboride is a hard, black crystalline compound with a high melting point.
Synthesis
It can be synthesized by passing barium vapour over boron crystals at >750 °C (1,380 °F):[citation needed]
- Ba + 6B → BaB
6
It can also be synthesized by reacting barium chloride with boron in two stages: firstly at 900 °C (1,650 °F) for 30 minutes and then at 1,500 °C (2,730 °F) for 60 minutes.[citation needed]
Potential applications
Barium hexaboride has been considered as a candidate for use in hot-cathode electron guns.[citation needed]
References
Further reading
- An analysis of the fine structure of BaB
6: Massidda, S.; Monnier, R.; Stoll, E. (October 2000). "Electronic structure of barium hexaboride" (in en). The European Physical Journal B 17 (4): 645–649. doi:10.1007/s100510070103. ISSN 1434-6028. Bibcode: 2000EPJB...17..645M. https://www.researchgate.net/publication/226873215_Electronic_structure_of_barium_hexaboride.
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