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  Encyclopedia of Keywords > Nature > Chemistry > Chemical Elements > Gallium   Michael Charnine

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  1. Gallium was named in honor of France (or Gaul), but sortof also for the rooster (or Gallus). (Web site)
  2. Gallium is one of only three metals that can exist as a liquid at room temperature.
  3. Gallium is similar in size to iron, an essential nutrient for respiration.
  4. Gallium is used in some high temperature thermometers. (Web site)
  5. Gallium is a soft, silvery metal with a shiny surface. (Web site)

Solar Cells

  1. Gallium Arsenide (GaAs) — A crystalline, high-efficiency compound used to make certain types of solar cells and semiconductor material.
  2. Gallium (Ga) — A chemical element, metallic in nature, used in making certain kinds of solar cells and semiconductor devices.
  3. Component required for synthesis of the semiconductor Copper indium gallium selenide (CIGS), which is used for the manufacture of thin film solar cells.


  1. Gallium does not crystallize in any of the simple crystal structures.
  2. Gallium for example diffuses into the grain boundaries A crystallite is a domain of solid-state matter that has the same structure as a single crystal.

Gallium Arsenide

  1. The compound with arsenic, gallium arsenide is a semiconductor commonly used in light-emitting diodes.
  2. An important application is in the compounds gallium nitride and gallium arsenide, used as a semiconductor, most notably in light-emitting diodes (LEDs).
  3. The compound, gallium arsenide can convert electricity directly into coherent light (this property is vital to light-emitting diodes).

Band Gap

  1. A gallium arsenide layers having a band gap of 1.42 eV, absorbs near infrared light. (Web site)
  2. The top layers of N and P-type gallium indium phosphide (GaInP) having a band gap of 1.85 eV, absorbs ultraviolet and visible light. (Web site)
  3. For special applications, such as Deep Space 1, high-efficiency cells can be made from gallium arsenide by molecular beam epitaxy. (Web site)

Zinc Ores

  1. The United States Geological Survey ( USGC) estimates gallium reserves based on 50 ppm by weight concentration in known reserves of bauxite and zinc ores.
  2. The USGS estimates gallium reserves based on 50 ppm by weight concentration in known reserves of bauxite and zinc ores.
  3. Gallium occurs in trace amounts in numerous minerals and in coal.

Low Vapor Pressure

  1. Gallium has the longest liquid temperature range of any metal and low vapor pressure even at high temperatures.
  2. Because of its low vapor pressure and predictable thermal expansion, Gallium can be used in high-temperature thermometers. (Web site)

Solid Metal

  1. Very pure gallium metal has a brilliant silvery color and its solid metal fractures conchoidally like glass.
  2. Very-pure gallium has a stunning silvery color and its solid metal fractures conchoidally like glass.
  3. Ultra-pure gallium has a beautiful, silvery appearance, and the solid metal exhibits a conchoidal fracture similar to glass. (Web site)


  1. High-purity gallium is attacked slowly by mineral acids.
  2. Both gallium and indium are able to wet glass.
  3. Electrolysis then gives gallium metal.
  4. Like most metals, finely divided gallium loses its luster.
  5. Liquid gallium wets porcelain and glass surfaces; it forms a bright, highly reflective surface when coated on glass. (Web site)

Last Check

  1. Some flue dusts from burning coal have been shown to contain as much 1.5 percent gallium.
  2. Last check: 2007-10-28) Gallium arsenide (GaAs) is a chemical compound composed of gallium and arsenic. (Web site)
  3. Mendeleev was so sure that the elements later named germanium, gallium, and scandium existed that he left spaces for them on his table. (Web site)
  4. Last check: 2007-10-28) They created a gate-type device, called a field effect transistor made of aluminium gallium arsenide. (Web site)


  1. Gallium is chemically similar to aluminum, the element above it in Group 13 of the periodic table. (Web site)
  2. Gallium is produced commercially as a byproduct in the production of zinc and aluminum. (Web site)

Room Temperature

  1. A soft silvery metallic poor metal, gallium is a brittle solid at low temperatures but liquefies slightly above room temperature and will melt in the hand.
  2. Although gallium is solid at normal room temperatures, it becomes liquid when heated slightly. (Web site)
  3. Solid gallium is a blue-gray metal with orthorhombic crystalline structure. (Web site)


  1. Gallium shares the higher-density liquid state with only a few materials like germanium, bismuth, antimony and water.
  2. Much research is being devoted to gallium alloys as substitutes for mercury dental amalgams, but such compounds have yet to see wide acceptance.
  3. Of these, the most important are the compounds of gallium with antimony, arsenic or phosphor . (Web site)


  1. Gallium metal expands 3.1 percent when it solidifys and therefore shouldn't be stored in either glass or metal containers.
  2. Gallium metal expands by 3.1 percent when it solidifies, and therefore should not be stored in either glass or metal containers.


  1. The process also creates alumina, but the expensive gallium, which prevents the formation of an oxide skin on the pellets, can be re-used.
  2. Gallium is found and extracted as a trace component in bauxite, coal, diaspore, germanite, and sphalerite.
  3. Most gallium is extracted from the crude aluminium hydroxide solution of the Bayer process for producing alumina and aluminium.


  1. Along with gallium, francium, and mercury, caesium is among the only metals that are liquid at or near room temperature. (Web site)
  2. Cesium, gallium, and mercury are the only three metals that are liquid at room temperature. (Web site)


  1. There is a strong tendency for gallium to supercool below its freezing point. (Web site)
  2. Some low melting point alloys have Gallium as a component. (Web site)


  1. Although gallium is widely distributed in nature, it does not occur in appreciable concentrations even in germanite, the ore richest in gallium. (Web site)
  2. The application of gallium that has received the most attention is the production of semiconducting compounds. (Web site)
  3. The photograph shows the far-field pattern of the world's first gallium nitride (GaN) nonpolar blue-violet laser diodes.
  4. A eutectic alloy of gallium, indium, and tin, is widely available in medical thermometers (fever thermometers), replacing problematic mercury. (Web site)

Being Conducted

  1. Research is being conducted to determine whether gallium can be used to fight bacterial infections in people with cystic fibrosis.
  2. Large amounts of Gallium are used in space research to detect solar neutrinos in experiments being conducted in Italy and Russia. (Web site)

Been Used

  1. One radioactive isotope of gallium, gallium-67, has long been used in medicine. (Web site)
  2. Gallium readily alloys with most metals, and has been used as a component in low-melting alloys.

Nuclear Weapon

  1. The plutonium used in nuclear weapon pits is machined by alloying with gallium to stabilize the allotropes of plutonium.
  2. The plutonium pits of nuclear weapons employ an alloy with gallium to stabilize of the allotropes of plutonium.


  1. Gallium nitrate, both oral and topical, is finding use in treating arthritis.
  2. Gallium salts such as gallium citrate and gallium nitrate are used as radiopharmaceutical agents in nuclear medicine imaging. (Web site)
  3. Each dose of gallium nitrate will be given in a clinic or hospital. (Web site)
  4. Gallium nitrate is given to you by a health-care professional by an infusion into a vein or by injection under your skin. (Web site)


  1. Gallium Facts Learn about the characteristics of the element gallium.
  2. Gallium added in quantities up to 2% in common solders can aid wetting and flow characteristics.
  3. Notable characteristics Elemental gallium is not found in nature, but it is easily obtained by smelting.


  1. Encyclopedia of Keywords > Nature > Chemistry > Chemical Elements
  2. Encyclopedia of Keywords > Nature > Matter > Materials
  3. Nature > Natural Resources > Minerals > Metals
  4. Encyclopedia of Keywords > Nature > Matter > Periodic Table
  5. Glossaries > Glossary of Chemical Elements /
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  Short phrases about "Gallium"
  Originally created: May 07, 2008.
  Links checked: February 02, 2013.
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