Sodium polonide
 Crystal structure of sodium polonide
__ Na+ __ Po2− | |
| Names | |
|---|---|
| Preferred IUPAC name
Sodium polonide | |
| Identifiers | |
3D model (
JSmol ) |
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| Properties | |
| Na2Po | |
| Molar mass | 254.96 g/mol |
| Appearance | greyish[1] |
| Related compounds | |
Other anions
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Other cations
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium polonide is a
radioactive chemical compound with the formula Na2Po. This salt is a polonide, a set of very chemically stable compounds of polonium.[2][3] Due to the difference in electronegativity (ΔEN) between sodium and polonium (≈ 1.1 under the Pauling system) and the slight non-metallic character of polonium, it is intermediate between intermetallic phases and ionic
compounds.
Production
This salt may be produced from the reaction between aqueous polonium hydride and sodium metal:[2][3]
- H2Po + 2 Na → Na2Po + H2
This method of synthesis is hampered by the chemical instability of hydrogen polonide.
Sodium polonide may also be produced by heating sodium and polonium together at 300–400 °C.[1]
Crystal structure
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References
- ^ ISBN 9780120236046. Retrieved June 17, 2012.
- ^ ISBN 978-0-08-022057-4.
- ^ doi:10.2172/4367751, TID-5221.