Iridiumis thechemical elementwi seembolIranatomic nummer77. A vera haurd, brickle, siller-whitetranseetion metalo theplatinum faimily,iridium is the seicont-densestelement (efterosmium) an is the maistcorrosion-resistant metal, even at temperaturs as heich as 2000 °C. Tho anerly certaint molten sauts anhalogensis corrosive tae solit iridium, finely dividit iridium dust is a fair bit mair reactive an can be flammable.
↑abWang, Guanjun; Zhou, Mingfei; Goettel, James T.; Schrobilgen, Gary G.; Su, Jing; Li, Jun; Schlöder, Tobias; Riedel, Sebastian (2014). "Identification of an iridium-containing compound with a formal oxidation state of IX".Nature.514(7523): 475–477.Bibcode:2014Natur.514..475W.doi:10.1038/nature13795.PMID25341786.Cite error: Invalid<ref>tag; name "IrIX" defined multiple times wi different content