Holmium Oxide CAS 12055-62-8

Holmium oxide, also known as holmium trioxide, has the chemical formula Ho2O3. It is a compound composed of rare earth element 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.