What are the hazards of holmium oxide

Holmium oxide, also known as holmium trioxide, has the chemical formula Ho2O3. It is a compound composed of rare earth element holmium and oxygen. It is one of the most paramagnetic substances known with dysprosium oxide. 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.

Appearance of holmium oxide

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 sources, 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 band gap 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+.

Holmium oxide chemical properties

Holmium oxide reacts with hydrochloric acid or ammonium chloride to produce holmium chloride:

Ho2O3+ 6 NH4Cl → 2 HoCl3+ 6 NH3+ 3 H2O

What are the hazards of holmium oxide

Holmium oxide is not too dangerous, but repeated excessive exposure can cause granulation tumors and hemoglobinemia. Holmium oxide has low oral toxicity, skin toxicity and inhalation toxicity, and is non-irritating. Oral median lethal dose is greater than 1g per kilogram of body weight

Overview of holmium oxide Ho2O3 powder

Holmium oxide, also known as holmium trioxide, has the chemical formula Ho2O3. It is a compound composed of the rare earth element holmium and oxygen. 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 spectra of glass and holmium oxide-containing solutions have a series of sharp peaks, so they are traditionally used as a standard for spectrophotometer calibration.

According to light conditions, holmium oxide has obvious color changes. It is light yellow in the sun, and intense orange-red under the three-primary light source. It is almost indistinguishable from erbium oxide under the same illumination, which is related to its sharp phosphorescent emission band. Holmium oxide has a wide band gap 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 transformation of Ho3+.

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 solution. Therefore, holmium oxide is used as a calibration standard for 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 are expanding its use by creating a far-ultraviolet quartz cell that can be used to fill and seal the ultraviolet spectrum. m provides sharp and stable peaks in the range of 219 to 650nm. The blank is measured against the air blank. Like most other rare earth element oxides, holmium oxide is used as a special catalyst, phosphor, and laser material.

Holmium oxide is used to manufacture new light source dysprosium holmium lamps, and can also be used as an additive for yttrium iron and yttrium aluminum garnet and for preparing metal holmium.

The laser works in a pulsed or continuous state with a wavelength of approximately 2.08 microns. This laser is safe for the human eye 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 solutions (usually perchloric acid solutions) have sharp absorption peaks in the spectral 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.

Holmium oxide Ho2O3 powder price

The price of holmium oxide Ho2O3 powder will vary randomly with the production cost, transportation cost, international situation, exchange rate and the demand of market supply and demand. Tianki New Materials Co., Ltd. aims to help various 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 holmium oxide Ho2O3 powder at the latest price.

Holmium Oxide Ho2O3 powder supplier

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.