Identifiers | |
---|---|
3D model (
JSmol)
|
|
| |
Properties | |
I4Pa | |
Molar mass | 738.65376 g·mol−1 |
Appearance | black crystals |
Related compounds | |
Related compounds
|
uranium tetraiodide, thorium tetraiodide |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
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 ]