Iridium

History

 
The element was discovered in 1804 by Tennant with oxidation native platinum aqua.
In 1841, it began studying the Russian chemist Professor Karl Klaus.


Nowadays


Iridium is a platinum group metals, and is highly corrosion-resistant. Therefore, its use as a coating. For example, it is used for coating molybdenum and tungsten wire. Iridium is added to increase the hardness and strength of alloys. This metal is used jewelers, metallurgists, surgeons and other specialists.
Also known to the so-called effect Messbauer for  weak nuclear reactions. Iridium even apply for tips of pens.