Lutetium(III) iodide

Lutetium(III) iodide
Names
Other names
Lutetium iodide
Lutetium triiodide
Identifiers
ChemSpider
ECHA InfoCard 100.034.054 Edit this at Wikidata
EC Number
  • 237-475-0
Properties
LuI3
Appearance solid[1]
Density 5.60 g/cm−3[1][2][3][4]
Melting point 1050 °C[1]
Boiling point 1210 °C[5]
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning[1]
H315, H319, H335
P261, P280, P304+P340, P305+P351+P338, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Lutetium(III) iodide or lutetium iodide is an inorganic compound consisting of iodine and lutetium, with the chemical formula of LuI3.

Preparation

Lutetium(III) iodide can be obtained by reacting lutetium with iodine:[5][2]

2 Lu + 3 I2 → LuI3

Lutetium(III) iodide can also obtained by the reacting metallic lutetium with mercury iodide in vacuum at 500 °C:[5]

2 Lu + 3 HgI2 → 2 LuI3 + 3 Hg

The elemental mercury generated in the reaction can be removed by distillation.[6]

The lutetium(III) iodide hydrate crystallized from the solution can be heated with ammonium iodide to obtain the anhydrate.[7][5]

Properties

It is a brown, very hygroscopic solid with a bismuth(III) iodide-type crystal structure. In air, it quickly absorbs moisture and forms hydrates.[2][3][4] The corresponding oxide iodide is also readily formed at elevated temperature.[5]

Lutetium(III) iodide doped with cerium is designed for use in PET scanners.[8] Lutetium iodide can be used together with yttrium iodide and gadolinium iodide in LuI3-YI3-GdI3 scintillators to detect neutron and gamma radiation.[9]

References

  1. ^ a b c d e Lutetium(III) iodide, ultra dry, 99.9% (REO) at AlfaAesar, accessed on {{{Datum}}} (PDF) (JavaScript required).[dead link‍]
  2. ^ a b c Webelements: Lutetium: lutetium triiodide Retrieved 31.3.2018
  3. ^ a b Americanelements.com: Lutetium Iodide Retrieved 31.3.2018
  4. ^ a b Perry, Dale L. (2016). Handbook of Inorganic Compounds. 2. painos. CRC Press. p. 245. ISBN 9781439814628. Retrieved 2018-03-31.
  5. ^ a b c d e Georg Brauer (Hrsg.), unter Mitarbeit von Marianne Baudler u. a.: Handbuch der Präparativen Anorganischen Chemie. 3., umgearbeitete Auflage. Band I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1077.
  6. ^ Asprey, L. B.; Keenan, T. K.; Kruse, F. H. Preparation and crystal data for lanthanide and actinide triiodides. Inorg. Chem., 1964. 3 (8): 1137-1240
  7. ^ 无机化学丛书 第七卷 钪 稀土元素. 科学出版社. pp 211
  8. ^ Saha, Gopal B. (2010). Basics of PET Imaging: Physics, Chemistry, and Regulations. Springer. p. 23. ISBN 9781441908056. Retrieved 2018-03-31.
  9. ^ Glodo, Jarek; van Loef, Edgar V. D. & Higgins, William M. (2008-06-17). "Mixed Lutetium Iodide Compounds". IEEE Transactions on Nuclear Science. 55 (3): 1496–1500. Bibcode:2008ITNS...55.1496G. doi:10.1109/TNS.2008.922215. ISSN 1558-1578. S2CID 36257295.{{cite journal}}: CS1 maint: multiple names: authors list (link)