https://wiki.tiffa.net/w/index.php?action=history&feed=atom&title=Translations%3APotassium%2F90%2FenTranslations:Potassium/90/en - Revision history2026-08-30T13:53:43ZRevision history for this page on the wikiMediaWiki 1.43.0https://wiki.tiffa.net/w/index.php?title=Translations:Potassium/90/en&diff=142440&oldid=prevFuzzyBot: Importing a new version from external source2024-04-22T01:13:24Z<p>Importing a new version from external source</p>
<p><b>New page</b></p><div>This reaction is exothermic and releases sufficient heat to ignite the resulting hydrogen in the presence of oxygen. Finely powdered potassium ignites in air at room temperature. The bulk metal ignites in air if heated. Because its density is 0.89{{nbsp}}g/cm<sup>3</sup>, burning potassium floats in water that exposes it to atmospheric oxygen. Many common fire extinguishing agents, including water, either are ineffective or make a potassium fire worse. [[Nitrogen]], [[argon]], [[sodium chloride]] (table salt), [[sodium carbonate]] (soda ash), and [[silicon dioxide]] (sand) are effective if they are dry. Some [[Fire extinguisher|Class D]] dry powder extinguishers designed for metal fires are also effective. These agents deprive the fire of oxygen and cool the potassium metal.</div>FuzzyBot