Dysprosium(III) iodide
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Names | |
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Other names Dysprosium triiodide, triiododysprosium | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
ECHA InfoCard | 100.035.888 |
EC Number |
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PubChem CID | |
CompTox Dashboard (EPA) | |
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Properties | |
DyI3 | |
Molar mass | 543.213 g·mol−1 |
Appearance | yellow-green flaky solid |
Density | g/cm3 |
Melting point | 955 °C (1,751 °F; 1,228 K) |
Boiling point | 1,320 °C (2,410 °F; 1,590 K) |
soluble | |
Structure | |
trigonal | |
Related compounds | |
Related compounds | Ytterbium(III) iodide |
Hazards | |
GHS labelling: | |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Dysprosium(III) iodide is a binary inorganic compound of dysprosium and iodine with the chemical formula DyI
3.[1]
Synthesis
[edit]Dysprosium(III) iodide can be obtained by reacting dysprosium with iodine.
- 2Dy + 3I → 2DyI3
Dysprosium(III) iodide can be obtained using the effect of mercury diiodide on dysprosium filings:
- 2Dy + 3HgI2 → 2DyI3 + 3Hg
Physical properties
[edit]Dysprosium(III) iodide is a hygroscopic yellow-green flaky solid[2] that is soluble in water.[3][4] The compound has a trigonal crystal structure of the bismuth(III) iodide type with the space group R3.
Uses
[edit]Dysprosium(III) iodide is used in gas discharge lamps to generate white light.[5]
References
[edit]- ^ "dysprosium triiodide". NIST. Retrieved 5 April 2023.
- ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3117. ISBN 978-0-412-30120-9. Retrieved 5 April 2023.
- ^ "Dysprosium(III) iodide, ultra dry, 99.99% (REO), Thermo Scientific Chemicals". fishersci.com. Retrieved 5 April 2023.
- ^ "35693 Dysprosium(III) iodide, ultra dry, 99.99% (REO)". Alfa Aesar. Retrieved 5 April 2023.
- ^ Emsley, John (2003). Nature's Building Blocks: An A-Z Guide to the Elements. Oxford University Press. p. 131. ISBN 978-0-19-850340-8. Retrieved 5 April 2023.