CG MATERIAL
Holmium Oxide Powder (Ho2O3), CAS 12055-62-8
Holmium Oxide Powder (Ho2O3), CAS 12055-62-8
Holmium oxide powder (Ho2O3) is a light yellow powder that is commonly used as a raw material for the production of other holmium compounds, such as holmium metal, holmium fluoride, and holmium nitrate.
Holmium oxide is insoluble in water, but soluble in acids. It has a high melting point of 2,405 °C and a high thermal conductivity, making it useful in high-temperature applications. It is also used as a yellow or red phosphor in television screens, as a dopant in the production of solid-state lasers, and as a magnetic material in the field of magneto-optics.
Holmium oxide powder should be stored in a cool, dry place, away from heat sources and incompatible materials. Proper protective equipment, such as gloves and safety goggles, should be worn when handling this material.
Physical Properties
| Compound Formula | Ho2O3 |
|---|---|
| Molecular Weight | 377.86 |
| Appearance | Light yellow |
| Melting Point | 2415 °C (4379 °F) |
| Boiling Point | 3900 °C (7052 °F) |
| Density | 3.79 g/cm3 |
| Solubility in H2O | N/A |
| Exact Mass | 377.845 g/mo |
| Monoisotopic Mass | 377.845344 Da |
Specifications
Holmium Oxide, also called Holmia, has specialized uses in ceramics, glass, phosphors and metal halide lamp, and dopant to the garnet laser. Holmium can absorb fission-bred neutrons, it is also used in nuclear reactors to keep atomic chain reaction from running out of control. Holmium Oxide is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring. It is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring. It is also used in Yttrium-Aluminum-Garnet (YAG) and Yttrium-Lanthanum-Fluoride (YLF) solid-state lasers found in microwave equipment (which are in turn found in a variety of medical and dental settings).
| Grade | 99.999% | 99.99% | 99.9% | 99% |
| CHEMICAL COMPOSITION | ||||
| Ho2O3 /TREO (% min.) | 99.999 | 99.99 | 99.9 | 99 |
| TREO (% min.) | 99 | 99 | 99 | 99 |
| Loss On Ignition (% max.) | 0.5 | 0.5 | 1 | 1 |
| Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
| Tb4O7/TREO Dy2O3/TREO Er2O3/TREO Tm2O3/TREO Yb2O3/TREO Lu2O3/TREO Y2O3/TREO |
1 5 5 1 1 1 1 |
10 20 50 10 10 10 10 |
0.01 0.03 0.05 0.005 0.005 0.005 0.01 |
0.1 0.3 0.3 0.1 0.01 0.01 0.05 |
| Non-Rare Earth Impurities | ppm max. | ppm max. | % max. | % max. |
| Fe2O3 SiO2 CaO Cl- CoO NiO CuO |
2 10 30 50 1 1 1 |
5 100 50 50 5 5 5 |
0.001 0.005 0.005 0.02 |
0.005 0.02 0.02 0.05 |
DATA SHEET
| MF | Ho2O3 |
| MW | 377.86 |
| Purity | 99.999%/99.99%/99.9%/99% REO |
| CAS | 12055-62-8 |
| Synonyms | HolmiumOxid/Oxyde De Holmium/Oxido Del Holmio |
Packaging
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