Ytterbium(III) iodide

Ytterbium(III) iodide
Names
Other names
Ytterbium triiodide
Ytterbium iodide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.053 Edit this at Wikidata
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).

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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