When examined by means of the spectroscope, the flame of indium reveals two brilliant bands—a violet and a blue one.
The following process for the detection of indium in zinc-blende, and its extraction from the same source, is given by Winkler.
Lecoq de Boisbaudran and E. Jungfleisch, on the extraction of gallium from the ores in which it is found associated with indium.
Precipitation with sulphuretted hydrogen does not give exact results on account of the solubility of the indium sulphide.
In properties gallium is more or less intermediate between the metals aluminium and indium.
III a.—Aluminium, gallium and indium were examined from this group.
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.
indium, in′di-um, n. a soft malleable silver-white metallic element.
indium, a metallic elementary body of rare occurrence, and first discovered in zinc-blende in 1863.
indium in·di·um (ĭn'dē-əm)
A soft malleable metallic element found primarily in ores of zinc. Atomic number 49; atomic weight 114.82; melting point 156.60°C; boiling point 2,100°C; specific gravity 7.31; valence 1, 2, 3.
A soft, malleable, silvery-white metallic element that occurs mainly in ores of zinc and lead. It is used in the manufacture of semiconductors, in bearings for aircraft engines, and as a plating over silver in mirrors. Atomic number 49; atomic weight 114.82; melting point 156.61°C; boiling point 2,080°C; specific gravity 7.31; valence 1, 2, 3. See Periodic Table.