Barium hexaboride
| Names | |
|---|---|
| IUPAC name Barium boride | |
| Other names Barium hexaboride | |
| Identifiers | |
CAS Number |
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| ECHA InfoCard | 100.031.774  |
PubChem CID |
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CompTox Dashboard (EPA) |
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InChI
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| Properties | |
Chemical formula | BaB6 |
| Molar mass | 202.193 g/mol |
| Appearance | Black, cubic substance |
| Density | 4.36 g/cm3 |
| Melting point | 2,270 °C (4,120 °F; 2,540 K) |
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 hexaboride is a hard material with a high melting point.[1] It can be formed by passing a barium vapour at >750 °C over boron crystals:
- Ba + 6B → BaB6
However, it can also be formed by reacting barium chloride with boron in two stages: firstly at 900 °C for 30 minutes and then at 1,500 °C for 60 minutes.
Potential applications
Barium hexaboride has been considered as a candidate for use in hot-cathode electron guns.
References
- ^ Massidda, S.; Monnier, R.; Stoll, E. (October 2000). "Electronic structure of barium hexaboride". The European Physical Journal B. 17 (4): 645–649. Bibcode:2000EPJB...17..645M. doi:10.1007/s100510070103. ISSN 1434-6028.
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Barium compounds
- BaB6
- Ba(BO2)2
- BaBr2
- Ba(BrO3)2
- Ba(CH3CO2)2
- Ba(C5H7O2)2
- Ba(ClO)2
- BaC2
- BaCO3
- BaC2O4
- Ba(ClO3)2
- BaClF
- Ba(ClO4)2
- Ba(CN)2
- BaCl2
- BaCrO4
- BaF2
- BaFeO4
- BaFe2O4
- BaH2
- BaI2
- Ba(IO3)2
- BaMnO4
- Ba(MnO4)2
- Ba(N3)2
- Ba(NO2)2
- Ba(NO3)2
- BaO
- BaO2
- Ba(OH)2
- Ba(PO3)2
- BaS
- BaSe
- BaSeO4
- Ba(SCN)2
- BaSO3
- BaSO4
- BaRuO3
- BaSnO3
- BaTiO3
- Ba2TiO4
- BaWO4
- BaZnGa
- Sr2Ba1-xNb2O6
- YBa2Cu3O7-x
- BaGeF6
- BaSiF6
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