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Oxide Powder

Stock No.
NS6130-12-001173
CAS
12055-62-8
MSDS
MSDS-PDF
Specifications
SPEC-PDF
COA
COA-PDF
Catalogue
MSDS pdf

Holmium III Oxide

(Ho2O3, APS: 40-50µm, Purity: 99.9%)
Holmium III oxide
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Preview
Particles Size Analysis - Ho2O3 Powder
ProductHolmium III oxide
Stock NoNS6130-12-001173
CAS12055-62-8 Confirm
Purity99.9%Confirm
APS40-50µmConfirm
Molecular FormulaHo2O3Confirm
Molecular Weight377.86g/molConfirm
FormPowderConfirm
ColorPink/YellowConfirm
Density8.41cm³Confirm
Melting Point2330°CConfirm
Boiling Point3900°CConfirm
SolubilityInsoluble in Water
Quality ControlEach Lot of Holmium III oxide was tested successfully
Main Inspect VerifierManager QC

Typical Chemical Analysis

Assay99.9%
Other Metal1000 ppm

Expert Reviews

product-expert-image
Dr. Marcus Tägtmeyer (International Medical and Technological University, Dar es Salaam, Tanzania)

Holmium III oxide, or holmium oxide is a chemical compound of a rare-earth element holmium and oxygen with the formula Ho2O3. 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.

product-expert-image
Dr. Ms Jane Li (National Penghu University of Science and Technology, Magong, Penghu,  Republic of China)

Holmium III Oxide is a highly insoluble thermally stable Holmium source suitable for glass, optic and ceramic applications. Holmium oxide occurs in small quantities in the minerals monazite, gadolinite, and in other rare-earth minerals. Holmium metal easily oxidizes in air; therefore the presence of holmium in nature is synonymous with that of holmium oxide.

product-expert-image
Dr. Willem-Jan de Kleijn Ph.D (Luleå University of Technology, Luleå, Sweden)

Holmium III oxide is one of the colorants used for cubic zirconia and glass, providing yellow or red coloring. Glass containing holmium oxide and holmium oxide solutions (usually in perchloric acid) has sharp optical absorption peaks in the spectral range 200-900 nm. They are therefore used as a calibration standard for optical spectrophotometers and are available commercially.

product-expert-image
Dr. JKF Gojukai PhD  (Kaiserslautern University of Technology, Kaiserslautern, Rhineland-Palatinate, Germany)

As most other oxides of rare-earth elements, holmium III oxide is used as a specialty catalyst, phosphor and a laser material. Holmium laser operates at wavelength of about 2.08 micrometres, either in pulsed or continuous regime. This laser is eye safe and is used in medicine, LIDARs, wind velocity measurements and atmosphere monitoring.

product-expert-image
Dr. Huang Fu Ph.D  (Maebashi Institute of Technology, Maebashi, Gunma, Japan)

Holmium III oxide has some fairly dramatic color changes depending on the lighting conditions. In daylight, it is a tannish yellow color. Under trichromatic light, it is a fiery orange red, almost indistinguishable from the way erbium oxide looks under this same lighting. This is related to the sharp emission bands of the phosphors. Holmium oxide has a wide band gap of 5.3 eVand thus should appear colorless. The yellow color originates from abundant lattice defects (such as oxygen vacancies) and is related to internal transitions at the Ho3+ ions.

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Holmium III oxide

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Holmium III Oxide (Ho2O3, APS: 40-50µm, Purity: 99.9%)

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