Holmium(III) oxide
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| Holmium(III) oxide | |
|---|---|
| Other names | Holmium oxide |
| Molecular formula | Ho2O3 |
| Molar mass | 377.86 g/mol |
| CAS number | [12055-62-8] |
| Density | 8.41 g/cm3 |
| Solubility (water) | Insoluble |
| Melting point | 2415 °C |
| Boiling point | ? °C |
| Disclaimer and references | |
Holmium(III) oxide, a yellow solid, is a compound of holmium sometimes used in making specialty glasses. It was first isolated in 1878 from an impure sample of erbia by Per Teodor Cleve, who named it holmia after the Latin name for his home town, Stockholm.
Holmium(III) oxide (Ho2O3) and Dysprosium(III) oxide (Dy2O3) are the most powerfully paramagnetic substances known.
[edit] Health effects
Holmium(III) oxide is, compared to many other compounds, not very dangerous. It is not an irritant, nor is it a carcinogen. However, repeated overexposure can cause granuloma and hemoglobanemia. If it contacts your skin or eyes, flush the site with water. If ingested, drink water to cause vomiting. [1]
[edit] References
- ^ Dierks, S. (April 1993). MSDS, Holmium(III) oxide. Retrieved on 2007-02-19.
[edit] External links
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