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

Molybdenum Trioxide Nanoparticles/Nanopowder and Applications

General Information about Molybdenum Trioxide                                                     Molybdenum trioxide is chemical compound with the formula MoO3. Its chief application is as an oxidation catalyst and as a raw material for the production of molybdenum metal.  Molybdenum Trioxide  is a very light blue powder. Molybdenum Trioxide Nanoparticles/Nanopowder and Their Applications                                                    Like many  nanoparticles/nanopowder , Molybdenum Trioxide nanoparticles/nanopowder are used as catalysts. These catalysis reactions include hydrogenation catalysis and cracking catalysis. Molybdenum Trioxide nanoparticles/  nanopowder are useful for...
Post a Comment
Read more
Carbon Nanotubes Specifications and Properties Carbon Nanotubes, simply CNTs, are allotropes of carbon with a round and hollow nanostructure. These barrel shaped carbon molecules have crucial properties, which are significant for nanotechnology, hardware, optics and other different fields of materials science and innovation. The carbon nanotube’s excellent quality as a strong and firm material laid the basis on many applications. Not to mention carbon nanotubes exceptional heat conductivity, electrical and mechanical properties, Carbon Nanotubes are used as additives to diverse auxiliary materials. In terms of rigidity and flexibility Carbon Nanotubes are the stiffest and strongest materials. These quality outcomes from the covalent sp2 bonds framed between the individual carbon molecules. Unlike Graphene , Carbon Nanotubes are either conductive or semiconducting along the tubular hub. Carbon Nanotubes also have absorption, fluorescence properties. Bulk Carbon nanotubes are util...
Post a Comment
Read more

Hydroxyapatite Nanopowders and Their Applications

Hydroxyapatite, is a naturally occurring mineral form of calcium apatite with the formula Ca 5 (PO 4 ) 3 (OH). Pure hydroxyapatite powder is white. Naturally occurring apatites can, however, also have brown, yellow, or green colorations, comparable to the discolorations of dental fluorosis. Hydroxyapatite Nanopowder/Nanoparticles (50 nm, 99.95+%)  has been widely used as a biocompatible ceramic in many areas of medicine, but mainly for contact with bone tissue, due to its resemblance to mineral bone. In mammals, the skeleton presents a carbonated and partially substituted apatite, based on nanocrystal aggregates, and associated with collagen, building up 3-D structures present in various bone tissue conformations like trabecular or cancellous bone. There has been growing interest in developing bioactive synthetic ceramics that could closely mimic natural apatite characteristics. As mentioned before,  Hydroxyapatite Nanopowder  is the main inorganic constituent of bon...
Post a Comment
Read more