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Holmium Oxide Ho2O3 CAS 12055-62-8

About Holmium Oxide Ho2O3 Powder:
Holmium oxide, also known as holmium trioxide, chemical formula Ho2O3, is a rare earth element holmium and oxygen elements, together with dysprosium oxide is known to be one of the strongest paramagnetic substances. Holmium oxide is a component of erbium oxide mineral. In its natural state, holmium oxide often coexists with trivalent oxides of lanthanide elements and requires special methods to separate it. Holmium oxide can be used to make a glass of special color. The visible absorption spectra of glass and solutions containing holmium oxide have a series of sharp peaks and have been traditionally used as a calibration standard for spectrometers. What is special about holmium oxide? Holmium 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) have sharp optical absorption peaks in the spectral range of 200-900 nm.
Holmium oxide is used to make special colored glass. Holmium oxide glass and holmium oxide solution have a series of sharp optical absorption peaks in the visible spectrum. Therefore, they have traditionally been used as a convenient calibration standard for optical spectrophotometers.
Holmium oxide has some fairly dramatic color changes depending on lighting conditions. During the day, it is a tanned yellow. In the trichromatic colors, it is a fiery red-orange, almost indistinguishable from the appearance of erbium oxide under the same light. This is related to the clear emission band of the phosphor. Holmium oxide has a bandgap of 5.3 eV and should therefore be colorless. The yellow color results from a large number of lattice defects (such as oxygen vacancies), which are associated with internal transitions of Ho3+ ions. TRUNNANO is a trusted global Holmium Oxide Ho2O3 Powder supplierFeel free to send an inquiry about the latest price of Holmium Oxide at any time.

Performance of Holmium Oxide Ho2O3 Powder :
Holmium oxide, also known as holmium trioxide, chemical formula Ho2O3, is a compound composed of the rare earth element holmium and oxygen element, and dysprosium oxide is one of the strongest known paramagnetic substances. Holmium oxide is one of the components of erbium oxide minerals. In its natural state, holmium oxide often coexists with trivalent oxides of lanthanides, and it requires a special method to separate them. Holmium oxide can be used to prepare special colored glass. The visible absorption spectrum of glass and solutions containing holmium oxide has a series of sharp peaks, so it is traditionally used as a standard for spectrometer calibration.

 

Technical Parameter of Holmium Oxide Ho2O3 Powder :

Product Code001002003004
Grade99.999%99.99%99.9%99%
CHEMICAL COMPOSITION    
Ho2O3 /TREO (% min.)99.99999.9999.999
TREO (% min.)99999999
Loss On Ignition (% max.)0.50.511
Rare Earth Impuritiesppm 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 Impuritiesppm 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


How is Holmium Oxide Ho2O3 Powder Produced?
The typical holmium oxide extraction process can be simplified as crushing and grinding the mineral mixture. Monazite can be separated by repeated electromagnetic separation because of its magnetic properties.
The most effective method for separating holmium oxide from rare earth is ion exchange. In this process, rare-earth ions are adsorbed to a suitable ion exchange resin by exchanging hydrogen ions, ammonium ions or copper ions present in the resin. The rare-earth ions are then selectively washed out with a suitable complexing agent, such as ammonium citrate or nitrogen triacetate.
 
Applications of Holmium Oxide Ho2O3 Powder:
Holmium oxide is one of the colorants used for cubic zirconia and glass. A yellow or red glass containing holmium oxide and holmium oxide solutions is available. Holmium oxide is therefore used as a calibration standard for optical spectrophotometers and is commercially available. Why holmium oxide is used in UV calibration? Holmium has been used as a wavelength standard for many years and now we have extended the use by creating a filled and sealed far UV quartz cell which allows it to be used in the UV spectra. Holmium offers sharp, stable peaks over the range of 219 to 650nm. Holmium is measured against an air blank. Like most other rare earth element oxides, holmium oxide is used as a specialty catalyst, phosphor and laser material.
Holmium oxide can be used to make dysprosium holmium lamp, and can also be used as the additive of yttrium iron to yttrium aluminum garnet and to make metal holmium.
Holmium lasers operate at a wavelength of about 2.08 microns, either in the pulsed or continuous state. This laser is safe for the eye and is used in medicine, lidar, wind speed measurement and atmospheric monitoring.
Holmium oxide can be used as a yellow and red colorant for Soviet diamonds and glass. Holmium oxide glass and holmium oxide solutions (often perchloric acid solutions) have sharp absorption peaks in the spectrum from 200 to 900nm and are therefore used as calibration standards for spectrometers and have been commercialized.
Holmium oxide is also used as a special catalyst, phosphor and laser material. Holmium laser has a wavelength of about 2.08 μm and can be pulsed or continuous light. The laser is harmless to the eye and can be used in medicine, lidar, wind speed measurement and atmospheric monitoring.


Packing & Shipping of Holmium Oxide Ho2O3 Powder :
We have many different kinds of packing which depend on the Holmium Oxide Ho2O3 Powder quantity.
Holmium Oxide Ho2O3 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Holmium Oxide Ho2O3 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.

Holmium Oxide Ho2O3 Powder Properties

Other NamesHolmia, Holmium(III) oxide, Holmium(+3) trioxide
CAS No.12055-62-8
Compound FormulaHo2O3
Molecular Weight377.86
AppearanceLight yellow powder
Melting Point2415 °C (4379 °F)
Solubility in waterN/A
Density3.79 g/cm3
Purity99.90%
Particle Size-100mesh
Boling point3900 °C (7052 °F)
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass377.845 g/mo
Monoisotopic Mass377.845344 Da
  
  

Holmium Oxide Ho2O3 Powder Health & Safety Information

Safety WarningN/A
Hazard StatementsN/A
Flashing pointN/A
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
RTECS NumberN/A
Transport InformationNONH for all modes of transport
WGK Germany3

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