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Hexaperchloratoaluminate
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<h2 id="preparation">Preparation</h2> <p>Hexaperchloratoaluminates can be synthesized by combining <a href="/facts/Aluminum_trichloride/xrhvSxDr">aluminum trichloride</a> and various <a href="/facts/Perchlorate/WCC53zS2">perchlorates</a> in liquid <a href="/facts/Sulfur_dioxide/jDK1fIDs">sulfur dioxide</a> at a temperature of –10°C:<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> </p> 3 <a href="/facts/Nitronium_perchlorate/0rbP8S2I">[NO2]ClO4</a> + 3 <a href="/facts/LiClO4/Ud6eYKQ2">LiClO4</a> + <a href="/facts/AlCl3/xrhvSxDr">AlCl3</a> → 3 <a href="/facts/NO2Cl/Y1XbBTdf">NO2Cl</a> + Li3[Al(ClO4)6], 3 [NO2]ClO4 + 3 <a href="/facts/NH4ClO4/BDMsvjxu">[NH4]ClO4</a> + AlCl3 → 3 NO2Cl + [NH4]3[Al(ClO4)6], 6 [NO2]ClO4 + AlCl3 → 3 NO2Cl + [NO2]3[Al(ClO4)6]. <p>To form hexaperchloratoaluminates, one can heat <a href="/facts/Aluminium_nitrate/Myg0XVAc">aluminium nitrate</a> in the presence of <a href="/facts/Nitrosonium_perchlorate/JpYez1JI">nitrosonium</a> or <a href="/facts/Nitronium_perchlorate/0rbP8S2I">nitronium perchlorate</a> at a temperature of 125 °C: <a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> </p> 10–14 [NO]ClO4 + <a href="/facts/Al(NO3)3/Myg0XVAc">Al(NO3)3</a> → [NO2]3[Al(ClO4)6] + (gaseous products), 6–10 [NO2]ClO4 + Al(NO3)3 → [NO2]3[Al(ClO4)6] + (gaseous products), 3 [NO2]ClO4 + 3 <a href="/facts/KClO4/h4KmomHk">KClO4</a> + AlCl3 → 3 NO2Cl + K3[Al(ClO4)6]. <p>Obtaining hydrazinium hexaperchloratoaluminate in a highly pure form is problematic. According to the available studies, this compound can only be produced via a low-yielding synthesis route including the reaction of <a href="/facts/Aluminium_chloride/xrhvSxDr">aluminium chloride</a>, hydrazinium perchlorate, and <a href="/facts/Nitronium_perchlorate/0rbP8S2I">nitronium perchlorate</a>:<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p> 3 [NO2]ClO4 + 3 [N2H5]ClO4 + AlCl3 → 3 NO2Cl + [N2H5]3[Al(ClO4)6]. <p>Guanidinium hexaperchloratoaluminate can be synthesized via the following reaction:<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> </p> 3 [NO2]ClO4 + 3 [C(NH2)3]ClO4 + AlCl3 → 3 NO2Cl + [C(NH2)3]3[Al(ClO4)6]. <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Guibert, C. R.; A. D. McElroy (10 Feb 1964). "Annual Report Studies of Complex Perchlorates". Callery Chemical Company. pp. 5–7. Archived from the original on March 3, 2016. Retrieved 3 October 2014. <a href="https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803" target="_blank">https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Guibert, C. R.; A. D. McElroy (10 Feb 1964). "Annual Report Studies of Complex Perchlorates". Callery Chemical Company. pp. 5–7. Archived from the original on March 3, 2016. Retrieved 3 October 2014. <a href="https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803" target="_blank">https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Guibert, C. R.; A. D. McElroy (10 Feb 1964). "Annual Report Studies of Complex Perchlorates". Callery Chemical Company. pp. 5–7. Archived from the original on March 3, 2016. Retrieved 3 October 2014. <a href="https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803" target="_blank">https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Guibert, C. R.; A. D. McElroy (10 Feb 1964). "Annual Report Studies of Complex Perchlorates". Callery Chemical Company. pp. 5–7. Archived from the original on March 3, 2016. Retrieved 3 October 2014. <a href="https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803" target="_blank">https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Guibert, C. R.; A. D. McElroy (10 Feb 1964). "Annual Report Studies of Complex Perchlorates". Callery Chemical Company. pp. 5–7. Archived from the original on March 3, 2016. Retrieved 3 October 2014. <a href="https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803" target="_blank">https://web.archive.org/web/20160303214809/http://www.dtic.mil/get-tr-doc/pdf?AD=AD0430803</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> </ol>