![]() Crystal structure of potassium polonide __ K+ __ Po2- | |
Names | |
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Preferred IUPAC name Potassium polonide | |
Identifiers | |
3D model (JSmol) | |
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Properties | |
K2Po | |
Molar mass | 287.18 g/mol |
Appearance | greyish [1] |
Related compounds | |
Other anions | Potassium oxide Potassium sulfide Potassium selenide Potassium telluride |
Other cations | Lithium polonide Sodium polonide Rubidium polonide Caesium polonide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Potassium polonide is a chemical compound with the formula K 2 Po. It is a polonide, a set of very chemically stable compounds of polonium. [2] [3]
Potassium polonide is thermally more unstable and has stronger electron affinity than potassium telluride (K2Te). [2] [3]
Potassium polonide may be produced from a redox reaction between polonium hydride and potassium metal: [2] [3]
It may also be produced by heating potassium and polonium together at 300–400 °C. [1] At higher temperature, this reaction may reverse.
Like sodium polonide, potassium polonide has the antifluorite structure. [2] [3]
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