Formula: Ho2O3

CAS No.: 12055-62-8

Molecular Weight: 377.86

Density: N/A

Melting point: N/A

Appearance: Light yellow powder

Solubility: Insoluble in water, moderately soluble in strong mineral acids

Stability: Slightly hygroscopic

Multilingual: HolmiumOxid, Oxyde De Holmium, Oxido Del Holmio

Holmium Oxide, also called Holmia, has specialized uses in ceramics, glass, phosphors and metal halide lamp, and dopant to 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).

Certificate of Analysis

Product Code	6791	6793	6795	6797
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 0.01 0.03	0.005 0.02 0.02 0.05

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