Polonium tetraiodide is a binary inorganic compound of polonium and iodine with the chemical formula PoI
4.[3][4] The compound forms volatile black crystals. [5]
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Other names
Polonium(IV) iodide
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3D model (JSmol)
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PubChem CID
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Properties | |
PoI 4[1] | |
Molar mass | 716.6 g/mol |
Appearance | Black crystals |
Melting point | 200 °C (392 °F; 473 K) |
Insoluble[2] | |
Related compounds | |
Related compounds
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Chromium(III) sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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1. Action of iodine vapor on polonium metal:
2. Dissolution of polonium dioxide in hydroiodic acid:[6]
The compound forms black crystals that are insoluble in water.
The compound reacts with hydroiodic acid to form hexaiodopolonic acid:
It can be reduced by hydrogen sulfide to yield polonium metal.[5] It decomposes on heating.
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