Holmium(III) chloride
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Names | |
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Other names
Holmium trichloride
Holmiumchlorid |
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Identifiers | |
10138-62-2 14914-84-2 (hexahydrate) |
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PubChem | 24992 |
Properties | |
HoCl3 | |
Molar mass | 271.289 g/mol |
Appearance | yellow crystals hygroscopic |
Density | 3.7 g/cm3 |
Melting point | 720 °C (1,328 °F; 993 K)[1] |
Boiling point | 1,500 °C (2,730 °F; 1,770 K) (decomposes) |
dissolves | |
Structure | |
Monoclinic, mS16 | |
C12/m1, No. 12 | |
Vapor pressure | {{{value}}} |
Related compounds | |
Other anions
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Holmium(III) oxide |
Other cations
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Dysprosium(III) chloride, Erbium(III) chloride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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verify (what is ?) | |
Infobox references | |
Holmium(III) chloride is the inorganic compound with the formula HoCl3. It is a common salt but is mainly used in research. It exhibits the same color-changing behavior seen in holmium oxide, being a yellow in natural lighting and a bright pink color in fluorescent lighting.
Preparation
It forms upon union of the elements, but a more commonly used method involves heating a mixture of holmium(III) oxide and ammonium chloride at 200-250 °C:[2]
- Ho2O3 + 6 NH4Cl → 2 HoCl3 + 6 NH3 + 2 H2O
Structure
In the solid state it has the YCl3 layer structure. [3]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY.
- ↑ Wells A.F. (1984) Structural Inorganic Chemistry 5th edition Oxford. ISBN 0-19-855370-6
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- Holmium compounds
- Chlorides
- Metal halides