Identifiers | |
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3D model (JSmol)
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Properties | |
I4Pa | |
Molar mass | 738.65376 g·mol−1 |
Appearance | black crystals |
Related compounds | |
Related compounds
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uranium tetraiodide, thorium tetraiodide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Protactinium tetraiodide is a binary inorganic compound of protactinium metal and iodine with the chemical formula PaI4.[1][2]
Protactinium tetraiodide can be prepared by reducing the pentaiodide with aluminum at about 400 °C:[3]
Also, a reaction of hydrogen reduction of protactinium(V) iodide at 400 °C:[4]
The compound forms black or dark green crystals.[4] The structure is not known.[5]
The compound is oxidized by antimony trioxide when heated in a vacuum:[6]
The compound also reacts with quartz when heated:[dubious ]