Gallium
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Gallium ( ) is a chemical element with symbol Ga and atomic number 31. Elemental gallium does not occur in nature, but as the gallium(III) compounds in trace amounts in bauxite and zinc ores. A soft silvery metallic poor metal, elemental gallium is a brittle solid at low temperatures. Held long enough, gallium will melt in the hand as it liquefies at temperature of (slightly above room temperature). Its melting point is used as a temperature reference point. The alloy Galinstan (68.5% Ga, 21.5% In, 10% Sn) has an even lower melting point of . From its discovery in 1875 until the semiconductor era, gallium was used primarily as an agent to make low-melting alloys.
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| High-resolution photographs of molten gallium, gal... High-resolution photographs of molten gallium, gallium crystals and gallium ingots under Creative Commons licence france-gallium.com/photos-gallium.php - Web |
| www.lenntech.com – textbook information regarding ... www.lenntech.com – textbook information regarding gallium www.lenntech.com/Periodic-chart-elements/Ga-en.htm - Web |
| Environmental effects of gallium Environmental effects of gallium minerals.usgs.gov/minerals/pubs/commodity/gallium/index.html - Web |
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| Price development of gallium 1959–1998 Price development of gallium 1959–1998 minerals.usgs.gov/minerals/pubs/commodity/gallium/460798.pdf - Web |
| Technology produces hydrogen by adding water to an... Technology produces hydrogen by adding water to an alloy of aluminum and gallium www.physorg.com/news107446364.html - Web |
