Chemistry:Protactinium triiodide

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Protactinium triiodide
Names
IUPAC name
Protactinium triiodide
Other names
Protactinium(III) iodide
Identifiers
3D model (JSmol)
Properties
I3Pa
Molar mass 611.74929 g·mol−1
Appearance dark brown solid
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 triiodide is an inorganic chemical compound with the chemical formula PaI
3.[1][2]

Synthesis

The compound can be obtained from PaI
5 by heating at 350-380 °C in a continuously pumping vacuum.[3][4]

Physical properties

PaI
3 forms a dark brown solid.[3] The compound has a PaBr
3 crystal structure.[3]

References

  1. ↑ "WebElements Periodic Table » Protactinium » protactinium triiodide". webelements.com. https://www.webelements.com/compounds/protactinium/protactinium_triiodide.html. 
  2. ↑ Brown, D. (1968) (in en). Halides of the Lanthanides and Actinides. Wiley. p. 272. ISBN 978-0-470-10840-6. https://books.google.com/books?id=DHkoAQAAMAAJ&q=Protactinium+triiodide. Retrieved 29 September 2025. 
  3. ↑ 3.0 3.1 3.2 Macintyre, Jane E. (23 July 1992) (in en). Dictionary of Inorganic Compounds. CRC Press. p. 3502. ISBN 978-0-412-30120-9. https://books.google.com/books?id=9eJvoNCSCRMC&dq=Protactinium+triiodide&pg=PA3502. Retrieved 29 September 2025. 
  4. ↑ (in en) Protactinium: The metal. Alloys. Compounds. Solution chemistry. Springer-Verlag. 1977. p. 70. ISBN 978-0-387-93355-9. https://books.google.com/books?id=sPIuAQAAIAAJ&q=%22Protactinium+triiodide%22. Retrieved 29 September 2025. 
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

Template:Actinide halides



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