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Barium carbide is a chemical compound in the carbide family with the chemical formula C2Ba.[1]
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| Identifiers | |
|---|---|
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| Properties | |
| C2Ba | |
| Molar mass | 161.35 g/mol |
| Appearance | black crystalline solid |
| Density | 3.75 g/cm3 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
[edit]Barium carbide was first synthesized as an impure compound in the Soviet Union in 1986 by reducing Barium carbonate powder with metallic Magnesium in the presence of Carbon-14.[2] It can also be prepared by heating a Barium amalgam and Carbon powder mixture in a Hydrogen current. The pure compound is prepared by reducing Barium oxide with Carbon at a high temperature.[3]
BaCO3 + Mg → C2Ba
Properties
[edit]Barium carbide reacts similarly to Calcium carbide[4], but it's more fusible. When exposed to extreme heat, the Barium will evaporate leaving behind crystals of Graphite. It can also absorb the Carbon in a solution at high temperatures.[3]
References
[edit]- ^ Elements, American. "Barium Carbide". American Elements. Retrieved 2019-12-10.
- ^ Mishin, V. I.; Georgievskij, S. S.; Eksel', L. M.; Koval', A. I.; Afanas'eva, L. A.; Puchkov, L. D.; Ulybin, V. B. (1989-12-07). "Method for preparation of barium carbide labelled by carbon 14" (in Russian).
{{cite journal}}: Cite journal requires|journal=(help) - ^ a b "Barium Carbide, BaC2". barium.atomistry.com. Retrieved 2019-12-11.
- ^ "carbide". InfoPlease. Retrieved 2019-12-11.