Holmium oxide
Ho₂O₃ - Rare earth oxide for special glasses, laser technology and magnetic ceramics
Holmium oxide (Ho₂O₃) is a yellowish-white to pink powder from the group of rare earth elements. Due to its exceptionally strong absorption in the visible spectrum and in the infrared range, it is used in industrial high-tech applications - particularly in laser optics, special glass coloring and magnetic ceramics production. PROJECTOR supplies industrial partners with high-purity holmium oxide in various grain sizes and packaging units.
Typical areas of application for holmium oxide:
Holmium oxide is used in the glass industry as a colorant and for optical filtering. It produces a yellowish to pinkish tint, which is used particularly in calibration filters for spectrometers or as laser spectacle glass. The defined absorption edge makes it ideal as an optical reference.
Holmium oxide is also an important dopant in laser crystals, e.g. in YAG systems (holmium:YAG lasers), which are used in medical laser technology (e.g. in urology and dermatology). It offers advantages such as high energy efficiency and low thermal load.
In the ceramics industry, it is used as a component in magnetic ceramic materials, e.g. for magnetic field sensors or in the production of temperature-stable materials.
Typical applications at a glance:
- Dye glasses for laboratory optics and laser protection
- Doping agents for medical solid-state lasers (e.g. Ho:YAG
- Magnetic ceramics for industrial measurement technology
- Catalytic processes in chemical syntheses
Material properties:
- Color: yellowish to pink (depending on light and concentration)
- Crystal structure: cubic
- Insoluble in water, soluble in mineral acids
- Strong absorption in the visible and near infrared range
- Very thermally stable
Technical specifications:
- Chemical formula: Ho₂O₃
- Chemical Abstracts Service (CAS-No.): 12055-62-8
- EC Index Number (EC No.): 235-015-3
Why PROJECTOR is your supplier partner:
As an experienced holmium oxide supplier, PROJECTOR provides industrial and research partners with reliable product quality and precise documentation. We guarantee rapid availability. Whether small quantities for research or batches for series production - PROJECTOR delivers individually packaged according to demand.
Frequently asked questions about holmium oxide:
Why is holmium oxide used to color glass?
Holmium oxide produces a stable yellowish to pinkish tint in glasses, especially for optical filters. It absorbs strongly in visible light and is therefore ideal for calibration filters in spectrometers or laser goggles.
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