Chemistry:Protactinium tetraiodide
From HandWiki
| Identifiers | |
|---|---|
3D model (JSmol)
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| 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). | |
| Infobox references | |
Tracking categories (test):
Protactinium tetraiodide is a binary inorganic compound of protactinium metal and iodine with the chemical formula PaI
4.[1][2]
Synthesis
Protactinium tetraiodide can be prepared by reducing the pentaiodide with aluminum at about 400 °C:[3]
- 3PaI
5 + Al → 3PaI
4 + AlI
3
Also, a reaction of hydrogen reduction of protactinium(V) iodide at 400 °C:[4]
- 2PaI
5 + H
2 → 2PaI
4 + 2HI
Physical properties
The compound forms black or dark green crystals.[4] The structure is not known.[5]
Chemical properties
The compound is oxidized by antimony trioxide when heated in a vacuum:[6]
- 3PaI
4 + Sb
2O
3 → 3PaOI
2 + 2SbI
3
- 2PaI
4 + SiO
2 → 2PaOI
2 + SiI
4
References
- ↑ "WebElements Periodic Table » Protactinium » protactinium tetraiodide". webelements.com. https://webelements.com/compounds/protactinium/protactinium_tetraiodide.html.
- ↑ Brown, David; Canterford, J. H.; Colton, Ray (1968) (in en). Halides of the Transition Elements: Halides of the lanthanides and actinides, by D. Brown. Wiley. p. 214. ISBN 978-0-470-10840-6. https://books.google.com/books?id=EHZMAAAAYAAJ&q=Protactinium+tetraiodide. Retrieved 2 April 2024.
- ↑ (in en) Advances in Inorganic Chemistry and Radiochemistry. Academic Press. 28 February 1970. p. 19. ISBN 978-0-08-057861-3. https://books.google.com/books?id=C7aXnkiqTUcC&dq=Protactinium+tetraiodide&pg=PA19. Retrieved 2 April 2024.
- ↑ 4.0 4.1 Macintyre, Jane E. (23 July 1992) (in en). Dictionary of Inorganic Compounds. CRC Press. p. 3509. ISBN 978-0-412-30120-9. https://books.google.com/books?id=9eJvoNCSCRMC&dq=Protactinium+tetraiodide&pg=PA3509. Retrieved 2 April 2024.
- ↑ Emeléus, Harry Julius; Sharpe, A. G. (1959) (in en). Advances in Inorganic Chemistry and Radiochemistry. Academic Press. p. 19. https://books.google.com/books?id=tKRqAAAAMAAJ&q=Protactinium+tetraiodide. Retrieved 2 April 2024.
- ↑ Morss, Lester R.; Edelstein, Norman M.; Fuger, J. (2010). The Chemistry of the Actinide and Transactinide Elements. Dordrecht: Springer. p. 874. ISBN 978-94-007-0210-3. http://radchem.nevada.edu/classes/rdch710/files/protactinium.pdf. Retrieved 3 April 2024.
| HI | He | ||||||||||||||||
| LiI | BeI2 | BI3 | CI4 | NI3 | I2O4, I2O5, I4O9 |
IF, IF3, IF5, IF7 |
Ne | ||||||||||
| NaI | MgI2 | AlI3 | SiI4 | PI3, P2I4 |
S | ICl, ICl3 |
Ar | ||||||||||
| KI | CaI2 | Sc | TiI4 | VI3 | CrI3 | MnI2 | FeI2 | CoI2 | NiI2 | CuI | ZnI2 | Ga2I6 | GeI2, GeI4 |
AsI3 | Se | IBr | Kr |
| RbI | SrI2 | YI3 | ZrI4 | NbI5 | Mo | Tc | Ru | Rh | Pd | AgI | CdI2 | InI3 | SnI4, SnI2 |
SbI3 | TeI4 | I | Xe |
| CsI | BaI2 | HfI4 | TaI5 | W | Re | Os | Ir | Pt | AuI | Hg2I2, HgI2 |
TlI | PbI2 | BiI3 | Po | AtI | Rn | |
| Fr | RaI2 | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og | |
| ↓ | |||||||||||||||||
| La | Ce | Pr | Nd | Pm | SmI2 | Eu | Gd | TbI3 | Dy | Ho | Er | Tm | Yb | Lu | |||
| Ac | ThI4 | Pa | UI3, UI4 |
Np | Pu | Am | Cm | Bk | Cf | EsI3 | Fm | Md | No | Lr | |||
 |  |
