Ytterbium(III) iodide
Names
Other names
Ytterbium triiodide
Ytterbium iodide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.053
EC Number
  • 237-474-5
  • InChI=1S/3HI.Yb/h3*1H;/q;;;+3/p-3
    Key: LSSJSIMBIIVSTN-UHFFFAOYSA-K
  • [I-].[I-].[I-].[Yb+3]
Properties
YbI3
Appearance yellow crystals[1]
Melting point 700 °C (1,292 °F; 973 K) decomposes[1]
soluble[1]
Hazards
GHS labelling:[2]
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

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. 1 2 3 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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