Skip to main content

Rundown about Gallium and its Chemical Properties

Gallium is a soft silvery-white metal, inert and nontoxic; it possesses characteristics different to those of other metals. It is liquid at near room temperature, and brittle solid at lower temperatures. Gallium is one of four metals -- mercury, cesium, and rubidium that can be used in high-temperature thermometers. Gallium may be cooled to 0 °C without solidifying, and is denser as a liquid than as a solid. It has a high tendency to supercool below its freezing point. Moreover, gallium has one of the longest liquid ranges of any metal and even at high temperatures; it has a low vapor pressure. Soluble in acid, alkali and slightly soluble in mercury. High-purity gallium is attacked slowly only by mineral acids.
Melting point: 29.76 °C
Boiling point: 2204 °C
Density: 5.904 gm/cc
Thermal Conductivity: 0.281 W/cm/K @ 302.93 K
Electrical Resistivity: 17.4 microhm-cm @ 20 oC
Electronegativity: 1.6
Originally discovered in 1875, gallium, at the time, was primarily used to make alloys with melting point. Nowadays gallium is mostly used in the production of electronic components, in the form of compounds.
Gallium arsenide (GaAs), gallium nitride (GaN), and copper-indium-gallium-selenide (CIGS) are used in the production of many electronic applications in semiconductors parts such as integrated circuits, transistors, light-emitting diodes, laser diodes, photo detectors and solar cells. The components listed above are crucial in the manufacture of high-performance computers and smartphones alongside with the aerospace and telecommunications industries.
A Gallium ingot is a cast, normally with a rectangular or round shape and therefore, a seeding is usually necessary for solidification. Shot and ingots are packaged to order and sold by the gram or kilogram.
Applications of Gallium:
  • ­Gallium is used in transistors and amplifiers.
  • ­Gallium is used in Light Emitting Diode (LED) for electronic displays and watches.
  • ­Gallium is used in the formation of different low melting alloys
  • ­Gallium is used in the making of different mirrors and glass coatings to form bright and highly reflective surfaces.
  • ­Gallium is used in the manufacturing of high temperature thermometers.

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

Graphene Tyres and Graphene Brake Pads

Could Graphene Use Create A Distruptive Technology In Tyre Sector? Almost every day, we see new applications emerging from graphene. The fact is certain; graphene is a disruptive technology that holds huge potential for commercialization. Graphene has abilities to open new markets and even replace existing materials or material technologies. A brand new application of graphene came out which is producing graphene tyres and brake pads. https://www.canadacarbon.com/brake-linings-gasket... In 2016 GraphChina (Graphene Innovation Conference); Sentury and Huagao launched their first electrostatic conducting graphene tyre on September 22nd. 2-3 weeks before the conference Sentury and Huagao officially announced their cooperation on the product. During the press conference, Sentury’s engineers (which is branded with the Landsail moniker), revealed that the latest test data shows their graphene-enhanced tyre offers; 1.8 meters shorter stopping distances (6 % improvement on conv...
1 comment
Read more

Characterization and potential uses of Hydroxyapatite Nanopowder/Nanoparticle

   Hydroxylapatite , also referred to as hydroxyapatite (HA), is a calcium apatite in its naturally occurring mineral form with the formula Ca5(PO4)3(OH). A fluorapatite or chlorapatite may be produced if the OH−ion is replaced by fluoride, chloride or carbonate. Hydroxylapatite crystallizes in the hexagonal crystal pattern. Pure hydroxylapatite powder is of white color. However, naturally occurring apatites can also have brown, yellow, or green hue, resembling the coloration of dental fluorosis. Hydroxyapatite Nanopowder/Nanoparticle (HApN) , nanodots or nanocrystals are spherical or faceted high surface area oxide magnetic nanostructured particles. Nanoscale Hydroxyapatite Nanopowder/Nanoparticle (HApN) are normally 20-80 nanometers (nm) with specific surface area (SSA) in the 15 - 50 m2/g range but sometimes available with an average particle size of 100 nm range with a specific surface area of approximately 5 - 10 m2/g. Hydroxyapatite Nanopowder/Nanoparticle (HApN...
Post a Comment
Read more