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Indium. body-centered tetragonal ( tI2) Indium is a chemical element; it has symbol In and atomic number 49. It is a silvery-white post-transition metal and one of the softest elements. Chemically, indium is similar to gallium and thallium, and its properties are largely intermediate between the two. [10]
The stable isotope 113 In is only 4.3% of naturally occurring indium. Among elements with a known stable isotope, only tellurium and rhenium similarly occur with a stable isotope in lower abundance than the long-lived radioactive isotope. Other than 115 In, the longest-lived radioisotope is 111 In, with a half-life of 2.8047 days.
Indium(III) chloride is the chemical compound with the formula In Cl 3 which forms a tetrahydrate. This salt is a white, flaky solid with applications in organic synthesis as a Lewis acid . It is also the most available soluble derivative of indium. [ 2 ]
Ferdinand Reich (19 February 1799 – 27 April 1882) was a German chemist who co-discovered indium in 1863 with Hieronymous Theodor Richter . Reich was born in Bernburg, Anhalt-Bernburg, Holy Roman Empire and died in Freiberg. He was color blind, or could only see in whites and blacks, and that is why Theodor Richter became his science partner.
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.
Indium compounds are chemical compounds that contain the chemical element indium. Subcategories. This category has the following 2 subcategories, out of 2 total. ...
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). The best-characterised compounds are the In (III) and In (II) chalcogenides e.g. the sulfides In 2 S 3 and InS.
Indium is a metal softer than lead ( hardness of 0.9 HB), permitting it to be scratched by a nail. It is also malleable, ductile and has a thermal conductivity value of 0.78 W/m°C (85 °C). It also has the capacity of wetting glass, quartz and other ceramic materials. It maintains the plasticity and ductility when exposed to cryogenic ...