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:1
2 Yb + 3 I2 → 2 YbI3Ytterbium(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 CO2The ytterbium(III) iodide hydrate crystallized from the solution can be heated with ammonium iodide to obtain the anhydrous form.2
Reactions
Ytterbium(III) iodide decomposes to ytterbium(II) iodide upon heating:3
2 YbI3 → 2 YbI2 + I2References
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 ↩
无机化学丛书 第七卷 钪 稀土元素. 科学出版社. pp 211 ↩
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) https://onlinelibrary.wiley.com/doi/10.1002/zaac.19312010119 ↩