Editing Iridium (section)

=== Chemical properties ===
Iridium is the most [[corrosion-resistant]] metal known.<ref name="Emsley" /> It is not attacked by [[acid]]s, including [[aqua regia]], but it can be dissolved in concentrated hydrochloric acid in the presence of sodium perchlorate. In the presence of [[oxygen]], it reacts with [[cyanide]] salts.<ref name="emsley">{{cite book|last=Emsley|first=John|title=Nature's Building Blocks: An A–Z Guide to the Elements|edition=New|year=2011 |publisher=Oxford University Press|location=New York |isbn=978-0-19-960563-7}}</ref> Traditional [[Oxidizing agent|oxidants]] also react, including the [[halogen]]s and oxygen<ref name="perry">{{cite book|title=Handbook of Inorganic Compounds| author=Perry, D. L.| pages=203–204| date=1995| isbn=978-1439814611| publisher=CRC Press}}</ref> at higher temperatures.<ref name="lagowski">{{cite book| title=Chemistry Foundations and Applications| volume=2| editor=Lagowski, J. J.| pages=[https://archive.org/details/chemistryfoundat0000unse/page/250 250–251]| date=2004| isbn=978-0028657233| publisher=Thomson Gale| url=https://archive.org/details/chemistryfoundat0000unse/page/250}}</ref> Iridium also reacts directly with [[sulfur]] at atmospheric pressure to yield [[iridium disulfide]].<ref name = Munson-1968>{{cite journal
 |url          = https://htracyhall.org/ocr/HTH-Archives/Cabinet%208/Drawer%203%20(MATI%20-%20MOZ)/(Munson,%20R.A.)%20(Muntoni,%20C.)%20(Murase,%20K.)%20(linked)/(Munson,%20R.A.)%20(Muntoni,%20C.)%20(Murase,%20K.)-237_OCR.pdf
 |author-last  = Munson
 |author-first = Ronald A.
 |date         = February 1968
 |title        = The Synthesis of Iridium Disulfide and Nickel diarsenide having the Pyrite Structure
 |journal      = Inorganic Chemistry
 |volume       = 7
 |number       = 2
 |pages        = 389–390
 |doi          = 10.1021/ic50060a047
 |access-date  = 2019-01-19
 |archive-date = 2019-04-12
 |archive-url  = https://web.archive.org/web/20190412090001/https://htracyhall.org/ocr/HTH-Archives/Cabinet%208/Drawer%203%20(MATI%20-%20MOZ)/(Munson,%20R.A.)%20(Muntoni,%20C.)%20(Murase,%20K.)%20(linked)/(Munson,%20R.A.)%20(Muntoni,%20C.)%20(Murase,%20K.)-237_OCR.pdf
 |url-status   = dead
}}</ref>