Skip to main content

Holmium Rare Earth Element

* 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 element is used in magnet production as a result of its magnetic qualities.

* Holmium Rare Earth Element can absorb neutrons, so holmium is used in nuclear reactors to keep a chain reaction under control.
* Holmium Rare Earth Element is also used in glass coloring applications. Holmium is providing red and yellow coloring. Glass contain holmium oxide and holmium oxide solutions have sharp optical absorption peaks in the spectral range 200–900 nm. They are therefore used as a calibration standard for optical spectrophotometers, and are available commercially.

* Holmium Rare Earth element has some compounds. Some of them: Holmium oxide (Ho2O3), holmium fluoride (HoF3) and holmium iodide (HoI3)
* Holmium is hard to find in nature and it is not free. It can be found in some minerals like gadolinite and monazite. 
Labels:

Comments

Post a Comment

Popular posts from this blog

Carbon Nanotube Threads

Since its discovery, carbon nanotube (CNT) has attracted many interests in different technology fields due to its extraordinary properties. Properties such as, high strength, great electrical and thermal conductivity, light weight and flexibility made CNT one of the best materials for wide range of applications. However, from its name it can be understood that CNT is a nanoscale material which is very small to be applied for the production of daily products. Researchers all around the world are working on finding methods and techniques which could produce new materials with the extraordinary properties of CNT. Image retrieved from:  https://worldindustrialreporter.com/strong-light-flexible-carbon-nanotubes-threads-with-ultrahigh-conductivity/ One of these research is focusing on the production of high strength threads that can be used in the manufacturing of fabrics, cables and ropes. An international group of scientists were able to produce a flexible conductive thread th...
Post a Comment
Read more

Multi Walled Carbon Nanotube Dispersions

Carbon nanotubes (CNTs)  have attracted enormous attention in recent years due to its unique physical, electronic, optical and potential applications in materials science and nanotechnology. The van der Waals interaction between tubes, however, makes CNTs aggregate in most organic solvents and aqueous solutions, which is the major limitation of their practical applications.Various approaches have been studied to alter the CNT surface to promote the dispersion of individual nanotubes and prevent their reaggregation. On the basis of this widely accepted viewpoint, numerous techniques such as covalent bonding, surfactant coating and polymer wrapping have been developed for surface modification or sidewall functionalization.These methods, however, are complicated, time-consuming and cause permanent damage to the CNT structure and properties of the surface, which produces residues of the dispersion agent for the final product. Figure: Single Walled Carbon Nanotube (SWCNT) It ha...
Post a Comment
Read more

Magnesium Oxide Nanoparticles/Nanopowder and Applications

General Information about Magnesium Oxide Magnesium oxide which has the chemical formula of MgO, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of Magnesium. It is a white powder at room temperature. Magnesium Oxide has very high melting point (2825  o C) and boiling point (3600  o C).                                                                                                                                                                                Magnesium Oxide Nanoparticles/Nanopowder an...
Post a Comment
Read more