Holmium(III) oxide

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Holmium(III) oxide
Other names	Holmium oxide
Identifiers
CAS number	[12055-62-8]
Properties
Molecular formula	Ho2O3
Molar mass	377.86 g/mol
Melting point	2415 °C
Boiling point	°C
Solubility in other solvents	Insoluble
Hazards
MSDS	External MSDS
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Holmium(III) oxide, is a chemical compound with the formula Ho₂O₃. It is sometimes used in making specialty glasses. Together with dysprosium(III) oxide (Dy₂O₃) holmium oxide is one of the most powerfully paramagnetic substances known. The oxide, also called holmia, occurs as a component of the related erbium oxide mineral called erbia. Typically the oxides of the trivalent lanthanides coexist in nature. The separation of these components requires specialized methods.

Treating holmium oxide with hydrogen chloride affords the corresponding holmium chloride.

[edit] Health effects

Holmium(III) oxide is, compared to many other compounds, not very dangerous, although repeated overexposure can cause granuloma and hemoglobinemia. If it contacts your skin or eyes, flush the site with water.

[edit] References