| Names | |
|---|---|
| Preferred IUPAC name Calcium polonide | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider | |
| |
| |
| Properties | |
| CaPo | |
| Molar mass | 249 g·mol−1 |
| Density | 6.0 g/cm3 |
| Structure[1] | |
| Rock Salt (cubic) | |
| Fm3m (No. 225) | |
a = 0.6514 nm | |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Calcium polonide is anintermetallic compound with thechemical formulaCaPo. It is made up ofcalcium andpolonium. Rather than being found in nature, the compound is entirelysynthetic, and difficult to study, due to polonium's high vapor pressure, radioactivity, and easy oxidation in air.
At atmospheric pressure, it crystalizes in the cubicrock salt crystal structure.[1] At a high pressure of around 16.7 GPa, the structure is predicted to transform to thecaesium chloride-type crystal structure.[2]
Based on theoretical calculations, calcium polonide is predicted to be asemiconductor.[3]
