indium 的定义
Chemistry.
- a rare metallic element, soft, white, malleable, and easily fusible, found combined in various ore minerals, especially sphalerite: so called from the two indigo-blue lines in its spectrum. Symbol: In; atomic weight: 114.82; atomic number: 49; specific gravity: 7.3 at 20°C.
更多indium例句
- Turns out they contain elements — cobalt and indium, to name just two — that are becoming increasingly scarce.
- With today’s trends of natural resource use, natural sources of indium will be depleted in about 10 years, platinum in 15 years and silver in 20 years.
- In properties gallium is more or less intermediate between the metals aluminium and indium.
- Antimony follows closely in the track of gallium and indium, the upper ring of spheres being identical.
- Indium oxide, In2O3, is a yellow powder which is formed on ignition of the hydroxide.
- The mono- and dichlorides are decomposed by water with the formation of the trichloride, and separation of metallic indium.
- Lecoq de Boisbaudran and E. Jungfleisch, on the extraction of gallium from the ores in which it is found associated with indium.