Editing Pyrophoricity (section)

==Pyrophoric materials==
===Solids===
* [[White phosphorus]]
* [[Alkali metal]]s, especially [[potassium]], [[rubidium]], [[caesium]], including the alloy [[NaK]]
* Finely divided metals ([[iron]],<ref name=pm>{{citation |title=Powder metallurgy: science, technology and applications |page=48 |author=Angelo & Subramanian |year=2008 |quote=Powders of aluminium, iron and magnesium are highly pyrophoric in nature}}{{better citation needed|reason=This text is not available readily, and the ones that are claim that this only happens as a result of botched procedure (too low a temperature during atomization leading to partial re-oxidation during an oxide reduction / atomization process) which meshes with what I know of things, namely that I've spilled 100nm-2µm range aluminum flake and even finer magnalium powder on my hand and the biggest pain caused by it was the difficulty in rinsing all of it off.  There are so many pre-conditions to make these pyrophoric in air that it's silly to say that they are in general.|date=January 2025}}</ref> [[aluminium]],<ref name=pm/> [[magnesium]],<ref name=pm/> [[calcium]], [[zirconium]],{{Citation needed|date=March 2017}} [[uranium]], [[titanium]], [[tungsten]], [[bismuth]], [[hafnium]], [[thorium]], [[osmium]], [[neodymium]])
* Some metals and alloys in bulk form ([[cerium]])
* [[Alkylate]]d metal [[alkoxide]]s or nonmetal [[halides]] (diethylethoxyaluminium, dichloro(methyl)silane)
* [[Graphite intercalation compound#Potassium graphite|Potassium graphite]] (KC<sub>8</sub>)
* Metal [[hydride]]s ([[sodium hydride]], [[lithium aluminium hydride]], [[Uranium(III) hydride|uranium trihydride]])
* Partially or fully alkylated derivatives of metal and nonmetal hydrides (diethylaluminium hydride, [[trimethylaluminium]], [[triethylaluminium]], [[butyllithium]]), with a few exceptions (i.e. [[dimethylmercury]] and [[tetraethyllead]])
* [[Copper]] fuel cell catalysts ([[zinc oxide]], [[aluminium oxide]])<ref>C.W. Corti et al. / Applied Catalysis A: General 291 (2005) 257</ref>
* [[Grignard reagent|Grignard reagents]] (compounds of the form RMgX)
* Used [[hydrogenation]] [[catalysts]] such as [[palladium on carbon]] or [[Raney nickel]] (especially hazardous because of the adsorbed hydrogen)
* [[Iron(II) sulfide]]: often encountered in oil and gas facilities, where corrosion products in steel plant equipment can ignite if exposed to air
* [[Lead]] and [[carbon]] powders produced from decomposition of [[lead citrate]]<ref>[http://www.freepatentsonline.com/3297590.pdf Pyrophoric lead composition and method of making it]</ref><ref>{{cite journal|doi=10.1021/j100877a023 | volume=70 | title=The Reaction of Pyrophoric Lead with Oxygen | year=1966 | journal=The Journal of Physical Chemistry | pages=1478–1482 | author=Charles J| issue=5 }}</ref>
* [[Uranium]], as shown in the disintegration of [[depleted uranium]] penetrator rounds into burning dust upon impact with their targets; in finely divided form it is readily ignitable, and uranium scrap from machining operations is subject to spontaneous ignition<ref>[http://158.132.155.107/posh97/private/Case/hbk1081e.html#ZZ30 DOE | Office of Health, Safety and Security | Nuclear Safety and Environment | Uranium] {{Webarchive|url=https://web.archive.org/web/20150221194246/http://158.132.155.107/posh97/private/Case/hbk1081e.html#ZZ30 |date=2015-02-21 }}, retrieved 3 September 2013; [https://web.archive.org/web/20100824105716/http://www.hss.doe.gov/nuclearsafety/ns/techstds/standard/hdbk1081/hbk1081e.html archived] on 24 August 2010.</ref>
* [[Neptunium]]
* Several compounds of [[plutonium]] are pyrophoric, and they cause some of the most serious fires occurring in [[United States Department of Energy]] facilities<ref>[http://158.132.155.107/posh97/private/Case/hbk1081d.html#ZZ281 DOE | Office of Health, Safety and Security | Nuclear Safety and Environment | Plutonium] {{Webarchive|url=https://web.archive.org/web/20150221215850/http://158.132.155.107/posh97/private/Case/hbk1081d.html#ZZ281 |date=2015-02-21 }}, retrieved 3 September 2013; [https://web.archive.org/web/20100928002539/http://www.hss.doe.gov/nuclearsafety/ns/techstds/standard/hdbk1081/hbk1081d.html#ZZ281 archived] on 28 September 2010.</ref>
*Petroleum hydrocarbon (PHC) sludge

=== Liquids ===
* [[Diphosphane]]
* [[Metalorganics]] of main group metals (e.g. [[aluminium]], [[gallium]], [[indium]], [[zinc]], [[cadmium]], etc.)
* [[Triethylborane]]
* [[tert-Butyllithium|''tert''-Butyllithium]]
* [[Diethylzinc]]
* [[Triethylaluminium]]

=== Gases ===
* Nonmetal [[hydride]]s ([[arsine]], [[phosphine]],{{efn-lr|Phosphine, PH<sub>3</sub> is only pyrophoric if impure, with  P<sub>2</sub>H<sub>4</sub> present.}} [[diborane]], [[germane]], [[silane]])
* [[Metal carbonyl]]s ([[dicobalt octacarbonyl]], [[nickel carbonyl]])