Nanografi Nanotechnology

Holmium oxide (Ho 2 O 3 ) 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 o C. 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 o...

* Holmium element was firstly examined by Swiss chemists Marc Delafontaine and Jacques Louis Soret in 1878 and its chemical symbol is Ho. The name of holmium is derived from the Stockholm which is capital of Sweden. * Holmium Rare Earth Element is a bright, soft and silvery white rare metal and holmium is malleable. * Holmium Rare Earth Element is measured to be slightly toxic. No serious harms in industrial usage have been detected. Holmium does not affect humans in terms of biological role, but Holmium’s salts are able to stimulate metabolism.   Actually, humans typically consume about a milligram of holmium a year. Plants do not readily take up holmium from the soil. Some vegetables have had their holmium content measured, and it amounted to 100 parts per trillion. * In dry air, holmium normally doesn’t react. But in moist air or when holmium is heated, it swiftly oxidizes. As a result holmium creates yellow oxide. * Like many other lanthanide elements, Holmium elemen...