Tantalum(V) iodide
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| Names | |
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| Other names
Tantalum pentaiodide
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| Identifiers | |
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| Properties | |
| Ta2I10 | |
| Molar mass | 1631 |
| Appearance | black solid |
| Density | 5.8 g/cm3 |
| Melting point | 543 °C (1,009 °F; 816 K) sublimes |
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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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| Infobox references | |
Tantalum(V) iodide is the inorganic compound with the formula Ta2I10. It is a black, moisture-sensitive, diamagnetic solid.
Tantalum pentaiodide forms from the reaction of metallic tantalum with excess iodine.
It can also be prepared by heating tantalum pentoxide with aluminium triiodide:
Its structure has been verified by X-ray crystallography, which reveals an edge-shared bioctahedral structure, as observed for many pentahalides of Nb and Ta.
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