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Holmium oxide is a compound composed of rare earth element holmium and oxygen.

2021-10-16 09:54:47  News

Overview of holmium oxide Ho2O3 powder

Holmium oxide, also known as holmium trioxide, has the chemical formula Ho2O3. It is a compound composed of rare earth elements holmium and oxygen, and dysprosium oxide is one of the most paramagnetic substances known. 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 special methods are needed to separate them. Holmium oxide can be used to prepare glass with special colors. The visible absorption spectrum of glass and solution containing holmium oxide has a series of sharp peaks, so it is traditionally used as a standard for spectrophotometer calibration.

According to light conditions, holmium oxide has a significant color change. It is light yellow under sunlight, and strong orange-red under the three-primary color light source, which is almost indistinguishable from erbium oxide under the same illumination, which is related to its sharp phosphorescent emission band. Holmium oxide has a wide bandgap of 5.3 eV, so it should be colorless. The yellow color of holmium oxide is caused by a large number of lattice defects (such as oxygen vacancies) and internal conversion of Ho3+.

What is special about holmium oxide? Holmium oxide is one of the colorants used in cubic zirconia and glass, and can be yellow or red. Glass containing holmium oxide and a solution of holmium oxide (usually in perchloric acid) has sharp light absorption peaks in the 200-900 nm spectral range.

Holmium oxideis used to make special colored glass. Holmium oxide glass and holmium oxide solution have a series of sharp light absorption peaks in the visible spectrum. Therefore, they have traditionally been used as convenient calibration standards for optical spectrophotometers.

Holmium oxidewill have some quite significant color changes depending on lighting conditions. During the day, it is a tanned yellow. Among the three primary colors, it is a hot red-orange, almost indistinguishable from its oxidized appearance under the same light. This is related to the transparent emission band of the phosphor. Holmium oxide has a bandgap of 5.3 eV, so it should be colorless. The yellow color is caused by a large number of lattice defects (such as oxygen vacancies), which are related to the internal transition of Ho3 + ions.

The properties of holmium oxide Ho2O3 powder

Also known as holmium trioxide, with the chemical formula Ho2O3, it is a compound composed of rare earth elements and oxygen elements. Holmium oxide is one of the strongest known paramagnetic substances. Holmium is one of the components of the holmium oxide mineral. Oxidation often coexists with trivalent oxides of lanthanides in their natural state, so a special method is needed to separate them. Oxidation can be used to prepare special colored glass. The visible absorption spectra of glass and holmium oxide-containing solutions have a series of sharp peaks, so they are traditionally used as a standard for the calibration of spectrometers

How is holmium oxide Ho2O3 powder produced?

The typical extraction process of holmium oxide can be simplified to pulverize and grind the mineral mixture. Monazite can be separated by repeated electromagnetic separation due to its magnetic properties.

The most effective method for separating holmium oxide from rare earth is ion exchange. In this method, by exchanging hydrogen ions, ammonium ions, or copper ions present in the resin, rare-earth ions are adsorbed on a suitable ion exchange resin. Then use a suitable complexing agent, such as ammonium citrate or nitrogen triacetate, to selectively wash the rare-earth ions.

The application of holmium oxide Ho2O3 powder

Holmium oxide is one of the colorants used in cubic zirconia and glass. You can use yellow or red glass containing holmium oxide and holmium oxide solutions. Therefore, holmium oxide is used as a calibration standard for optical spectrophotometers and is available on the market. Why is oxidation used in UV calibration? It has been used as a wavelength standard for many years, and now we have expanded its use by creating a filled and sealed far-ultraviolet quartz cell that can be used in the ultraviolet spectrum. m provides sharp, stable peaks in the range of 219 to 650nm. Blank is measured for air blanks. Like most other rare earth element oxides, holmium oxide is used as a specialty catalyst, phosphor, and laser material.

It is used to manufacture new light source dysprosium holmium lamps, and can also be used as additives for yttrium-iron and yttrium-aluminum garnets and for preparing metal holmium.

The laser operates in a pulsed or continuous state at a wavelength of approximately 2.08 microns. This laser is eye-safe and can be used for drugs, lidar, wind speed measurement, and atmospheric monitoring.

Holmium oxide can be used as a yellow and red colorant for Soviet diamonds and glass. Glass containing holmium oxide and holmium oxide solution (usually perchloric acid solution) have sharp absorption peaks in the spectrum in the range of 200-900nm, so they can be used as standards for spectrometer calibration and have been commercialized. Like other rare earth elements, holmium oxide is also used as a special catalyst, phosphor, and laser material. The wavelength of the holmium laser is about 2.08 μm, and it can be pulsed or continuous light. This laser is harmless to the eyes and can be used in medicine, optical radar, wind speed measurement, and atmospheric monitoring.

The price of holmium oxide Ho2O3 powder

The price of holmium oxide Ho2O3 powder will vary randomly with the production cost, transportation cost, international situation, exchange rate and market supply and demand of holmium oxide Ho2O3 powder. Tanki New Materials Co.,Ltd aims to help all industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for holmium oxide Ho2O3 powder, please feel free to send to get the latest price of holmium oxide Ho2O3 powder.

Suppliers of holmium oxide Ho2O3 powder

As a global supplier of holmium oxide Ho2O3 powder, Tanki New Materials Co.,Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced technology and engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics and structural devices, and provides OEM services.

Technical Parameter of Holmium Oxide Ho2O3 Powder :
Product Code1234
Grade100.00%99.99%99.90%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/TREO1100.010.1
Dy2O3/TREO5200.030.3
Er2O3/TREO5500.050.3
Tm2O3/TREO1100.0050.1
Yb2O3/TREO1100.005 0.01
Lu2O3/TREO1100.0050.01
Y2O3/TREO1100.010.05
Non-Rare Earth Impuritiesppm max.ppm max.% max.% max.
Fe2O3250.0010.005
SiO2101000.0050.02
CaO30500.010.02
Cl-50500.030.05
CoO15

NiO15

CuO15


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