Editing Potassium perchlorate (section)

==Production==
[[File:Perclorato de Potássio.jpg|200px|thumbnail|left|Potassium perchlorate in crystal form]]
Potassium perchlorate is prepared industrially by treating an aqueous solution of [[sodium perchlorate]] with [[potassium chloride]]. This single precipitation reaction exploits the low [[solubility]] of KClO<sub>4</sub>, which is about 1/100 as much as the solubility of NaClO<sub>4</sub> (209.6 g/100 mL at 25&nbsp;°C).<ref>Helmut Vogt, Jan Balej, John E. Bennett, Peter Wintzer, Saeed Akbar Sheikh, Patrizio Gallone "Chlorine Oxides and Chlorine Oxygen Acids" in ''Ullmann's Encyclopedia of Industrial Chemistry'' 2002, Wiley-VCH, Weinheim. {{doi|10.1002/14356007.a06_483}}</ref>

It can also be produced by bubbling chlorine gas through a solution of [[potassium chlorate]] and [[potassium hydroxide]],{{citation needed|date=June 2017}} and by the reaction of [[perchloric acid]] with potassium hydroxide; however, this is not used widely due to the dangers of perchloric acid.

Another preparation involves the [[electrolysis]] of a potassium chlorate solution, causing KClO<sub>4</sub> to form and precipitate at the [[anode]]. This procedure is complicated by the low solubility of both potassium chlorate and potassium perchlorate, the latter of which may precipitate onto the electrodes and impede the current.