Search results
Results from the WOW.Com Content Network
The mines north of the town are the largest deposits of rare-earth elements yet found and, as of 2005, responsible for 45% of global rare-earth element production. [ 2 ] [ 3 ] [ 4 ] In the satellite image at right, vegetation appears red, grassland is light brown, rocks are black, and water surfaces are green.
The stable indium isotope, indium-113, is one of the p-nuclei, the origin of which is not fully understood; although indium-113 is known to be made directly in the s- and r-processes (rapid neutron capture), and also as the daughter of very long-lived cadmium-113, which has a half-life of about eight quadrillion years, this cannot account for ...
InCl can be prepared by heating indium metal with indium trichloride in a sealed tube. [3] [4] According to X-ray crystallography, the structure of the yellow polymorph resembles that of sodium chloride except that the Cl-In-Cl angles are not 90°, but range between 71 and 130°. The red (high T) polymorph crystallizes in the thallium(I) iodide ...
Distinct yellow and a red forms are known. The red form undergoes a transition to the yellow at 57 °C. The structure of the red form has not been determined by X-ray crystallography, however spectroscopic evidence indicates that indium may be six coordinate. [5] The yellow form consists of In 2 I 6 with 4 coordinate
Indium(III) iodide is a pale yellow, very hygroscopic monoclinic solid (space group P2 1 /c (space group no. 14), a = 9.837 Å, b = 6.102 Å, c = 12.195 Å, β = 107.69°), [3] which melts at 210 °C to form a dark brown liquid and is highly soluble in water.
The precipitation of indium hydroxide was a step in the separation of indium from zincblende ore by Reich and Richter, the discoverers of indium. [ 6 ] Indium(III) hydroxide is amphoteric , like gallium(III) hydroxide ( Ga(OH) 3 ) and aluminium hydroxide ( Al(OH) 3 ), but is much less acidic than gallium hydroxide ( Ga(OH) 3 ), [ 5 ] having a ...
Indium(II) selenide can be formed via a number of different methods. A method to make the bulk solid is the Bridgman/Stockbarger method, in which the elements indium and selenium are heated to over 900 °C in a sealed capsule, and then slowly cooled over about a month. [4]
Amorphous indium oxide is insoluble in water but soluble in acids, whereas crystalline indium oxide is insoluble in both water and acids. The crystalline form exists in two phases, the cubic (bixbyite type) [1] and rhombohedral (corundum type). Both phases have a band gap of about 3 eV. [3] [4] The parameters of the cubic phase are listed in ...