Dysprosium(III) oxide

Dysprosium(III) oxide

Identifiers
CAS Number	1308-87-8
ChemSpider	3296880
Jmol interactive 3D	Image
PubChem	159370
InChI InChI=1S/2Dy.3O Key: NLQFUUYNQFMIJW-UHFFFAOYSA-N InChI=1/2Dy.3O/rDy2O3/c3-1-5-2-4 Key: NLQFUUYNQFMIJW-XDEDGNAWAZ
SMILES O=[Dy]O[Dy]=O
Properties
Chemical formula	Dy2O3
Molar mass	372.998 g/mol
Appearance	White powder.
Density	7.80 g/cm^3
Melting point	2,408 °C (4,366 °F; 2,681 K)[1]
Solubility in water	Negligible
Structure
Crystal structure	Cubic, cI80
Space group	Ia-3, No. 206[2]
Hazards
Main hazards	Non-Toxic
Safety data sheet	External MSDS
Related compounds
Other anions	Dysprosium(III) chloride
Other cations	Terbium(III) oxide, Holmium(III) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Dysprosium Oxide (Dy₂O₃) is a white, slightly hygroscopic powder having specialized uses in ceramics, glass, phosphors, lasers and dysprosium metal halide lamps.

It can react with acids to produce the corresponding dysprosium(III) salts:

Dy₂O₃ + 6 HCl → 2 DyCl₃ + 3 H₂O

References

1. Webelements Dysprosium trioxide
2. Curzon A.E., Chlebek H.G. (1973). "The observation of face centred cubic Gd, Tb, Dy, Ho, Er and Tm in the form of thin films and their oxidation". J. Phys. F 3: 1–5. doi:10.1088/0305-4608/3/1/009.