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Ytterbium(III) iodide is one of ytterbium's iodides, with the chemical formula of YbI3.

Preparation

Ytterbium(III) iodide can be prepared by reacting metallic ytterbium with iodine at 500°C with a 30 atm pressure:[3]

2 Yb + 3 I2 → 2 YbI3

Ytterbium(III) oxide, ytterbium(III) hydroxide or ytterbium(III) carbonate can react with hydroiodic acid to obtain ytterbium(III) iodide in aqueous solution:

Yb2O3 + 6 HI → 2 YbI3 + 3 H2O
Yb(OH)3 + 3 HI → YbI3 + 3 H2O
Yb2(CO3)3 + 6 HI → 2 YbI3 + 3 H2O + 3 CO2

The ytterbium(III) iodide hydrate crystallized from the solution can be heated with ammonium iodide to obtain the anhydrous form.[4]

Reactions

Ytterbium(III) iodide decomposes to ytterbium(II) iodide upon heating:[5]

2 YbI3 → 2 YbI2 + I2

References

  1. ^ a b c Lide, David R., ed. (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. pp. 4–99. ISBN 978-1-4200-9084-0.
  2. ^ "Ytterbium iodide (YbI3)". pubchem.ncbi.nlm.nih.gov.
  3. ^ 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
  4. ^ 无机化学丛书 第七卷 钪 稀土元素. 科学出版社. pp 211
  5. ^ G. Jantsch, N. Skalla, H. Jawurek (1931-11-10). "Zur Kenntnis der Halogenide der seltenen Erden. V. Über die Halogenide des Ytterbiums". Zeitschrift für anorganische und allgemeine Chemie. 201 (1): 207–220. doi:10.1002/zaac.19312010119. Retrieved 2022-09-15.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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