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| Names | |
|---|---|
| Other names
Ytterbium triiodide Ytterbium iodide | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.034.053 
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| EC Number |
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| PubChem CID | |
| CompTox Dashboard (EPA) | |
InChI
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SMILES
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| Properties | |
| Chemical formula | YbI3 |
| Appearance | yellow crystals |
| Melting point | 700 °C (1,292 °F; 973 K) decomposes |
| Solubility in water | soluble |
| Hazards | |
| GHS labelling: | |
| Pictograms | 
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| Signal word | Warning |
| Hazard statements | H315, H319, H335 |
| Precautionary statements | 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 , 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:
- 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.
Reactions
Ytterbium(III) iodide decomposes to ytterbium(II) iodide upon heating:
- 2 YbI3 → 2 YbI2 + I2
References
- ^ 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.
- "Ytterbium iodide (YbI3)". pubchem.ncbi.nlm.nih.gov.
- 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)
| Ytterbium compounds | |
|---|---|
| Yb(II) | |
| Yb(III) | |
| Other | |
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