Indium (atomic number 49, symbol In) is a malleable and soft chemical element, which is similar to thallium and gallium in terms of chemical properties. It is a rare and fusible metal and exhibits intermediary properties between gallium and thallium. The primary source of indium is zinc ores, and it occurs in a compound form in them. Indium rarely occurs in the form of grains of a free or native metal, and these grains are of no commercial importance.
The element does not react with water, but strong oxidizing agents oxidize it, for example, oxalic acid and halogens, giving indium...Read More