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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°.
Indium(II) chloride was first reported to be produced in 1888 by Lars Fredrik Nilson who claimed to have produced indium(II) chloride from the reaction of indium metal and hydrogen chloride gas at 200 °C. [1] However, this has been called into doubt as characterization by X-ray diffraction and NMR failed.
When heated to 700 °C, indium(III) oxide forms In 2 O, (called indium(I) oxide or indium suboxide), at 2000 °C it decomposes. [9] It is soluble in acids but not in alkali. [9] With ammonia at high temperature indium nitride is formed: [14] In 2 O 3 + 2 NH 3 → 2 InN + 3 H 2 O
The indium chalcogenides include all compounds of indium with the chalcogen elements, oxygen, sulfur, selenium and tellurium. ( Polonium is excluded as little is known about its compounds with indium).
Indium phosphide (InP) is a binary semiconductor composed of indium and phosphorus. It has a face-centered cubic (" zincblende ") crystal structure , identical to that of GaAs and most of the III-V semiconductors .
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 ...
The hydrate first decomposes to a basic salt and then to indium(III) oxide at 240 °C. Anhydrous indium(III) nitrate is claimed to be produced by the reaction of anhydrous indium(III) chloride and dinitrogen pentoxide. [2] [4] In the presence of excess nitrate ions, indium(III) nitrate converts to the [In(NO 3) 4] − ion. [1] [2]
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]