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Indium trihydride is an inorganic compound with the chemical formula (InH 3). It has been observed in matrix isolation and laser ablation experiments. [2] [3] Gas phase stability has been predicted. [4] The infrared spectrum was obtained in the gas phase by laser ablation of indium in presence of hydrogen gas [5] InH 3 is of no practical ...
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 lower ...
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Bulk samples can be prepared by heating indium(III) hydroxide or the nitrate, carbonate or sulfate. [9] Thin films of indium oxide can be prepared by sputtering of indium targets in an argon/oxygen atmosphere. They can be used as diffusion barriers ("barrier metals") in semiconductors, e.g. to inhibit diffusion between aluminium and silicon. [10]
Pourbaix diagram of iron. [1] The Y axis corresponds to voltage potential. In electrochemistry, and more generally in solution chemistry, a Pourbaix diagram, also known as a potential/pH diagram, E H –pH diagram or a pE/pH diagram, is a plot of possible thermodynamically stable phases (i.e., at chemical equilibrium) of an aqueous electrochemical system.
Indium reacts with water to reproduce soluble indium(III) hydroxide, which is also amphoteric; with alkalis to produce indates(III); and with acids to produce indium(III) salts: In(OH) 3 + 3 HCl → InCl 3 + 3 H 2 O. The analogous sesqui-chalcogenides with sulfur, selenium, and tellurium are also known. [39] Indium forms the expected trihalides.
A flame test involves introducing a sample of the element or compound to a hot, non-luminous flame and observing the color of the flame that results. [4] The compound can be made into a paste with concentrated hydrochloric acid, as metal halides , being volatile, give better results. [ 5 ]
There are three sets of Indium halides, the trihalides, the monohalides, and several intermediate halides. In the monohalides the oxidation state of indium is +1 and their proper names are indium(I) fluoride, indium(I) chloride, indium(I) bromide and indium(I) iodide. The intermediate halides contain indium with oxidation states, +1, +2 and +3.