Rundown about Holmium Oxide

Holmium oxide (Ho₂O₃) is the oxide form of the rare earth metal holmium. Holmium oxide is also known as holmia and holmium sesquioxide. This holmium oxide compound occurs in nature. Mostly, holmium oxide are contained in minerals like gadolinite and monazite. Holmium oxide has light yellow-orange, pale-yellow and beige colors. Holmium oxide is not soluble in water, but soluble in acids. The cubic structure is the only structure for holmium oxide compound. Holmium oxide has a melting point at temperature of 2415^oC. Holmium oxides has a few applications.

Holmium oxide is used as colorants for glasses and cubic zirconia

Holmium oxide is used as a specialty catalyst, phosphor and laser material

Holmium oxide is used in ceramics, glasses, phosphorous, and metal halides lamps

Holmium oxide is used in nuclear reactors to control the atomic chain reaction

Holmium oxide is used as calibration standard for optical spectrophotometers since holmium oxide solutions have sharp optical absorption peaks in spectral range 200-900nm

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