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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Pertechnetate</span></h1>
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<p><b>Pertechnetate</b> sind eine Stoffgruppe von <a href="Chemische_Verbindung" title="Chemische Verbindung">chemischen Verbindungen</a>, welche das Pertechnetat-<a href="Anion" title="Anion">Anion</a> TcO<sub>4</sub><sup>−</sup> beinhalten. Sie sind die <a href="Salze" title="Salze">Salze</a> der <a href="Pertechnetiums%C3%A4ure" title="Pertechnetiumsäure">Pertechnetiumsäure</a> HTcO<sub>4</sub>.
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<div class="mw-heading mw-heading2"><h2 id="Gewinnung_und_Darstellung">Gewinnung und Darstellung</h2></div>
<p>Durch die <a href="Neutralisation_(Chemie)" title="Neutralisation (Chemie)">Neutralisation</a> der Pertechnetiumsäure durch eine <a href="Basen_(Chemie)" title="Basen (Chemie)">Base</a> kann das Pertechnetat-Ion entstehen.
</p><p><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {OH- + HTcO4 -> TcO4- + H2O}}}">
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<mtext>HTcO</mtext>
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<mtext>TcO</mtext>
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<annotation encoding="application/x-tex">{\displaystyle {\ce {OH- + HTcO4 -&gt; TcO4- + H2O}}}</annotation>
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</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/1f99ef64ddf7803de8f13ae30cbba2513d8243cb.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:33.79ex; height:3.176ex;" alt="{\displaystyle {\mathrm {OH} {\vphantom {A}}^{-}{}+{}\mathrm {HTcO} {\vphantom {A}}_{\smash[{t}]{4}}{}\mathrel {\longrightarrow } {}\mathrm {TcO} {\vphantom {A}}_{\smash[{t}]{4}}{\vphantom {A}}^{-}{}+{}\mathrm {H} {\vphantom {A}}_{\smash[{t}]{2}}\mathrm {O} }}" loading="lazy"></span>
</p><p>Beispiele:
</p>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {NaOH + HTcO4 -> NaTcO4 + H2O}}}">
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<mtext>NaOH</mtext>
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<mtext>HTcO</mtext>
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<mtext>NaTcO</mtext>
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<annotation encoding="application/x-tex">{\displaystyle {\ce {NaOH + HTcO4 -&gt; NaTcO4 + H2O}}}</annotation>
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</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/c8669522454601ea3ab808ad490390f64b66bade.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:37.633ex; height:2.843ex;" alt="{\displaystyle {\mathrm {NaOH} {}+{}\mathrm {HTcO} {\vphantom {A}}_{\smash[{t}]{4}}{}\mathrel {\longrightarrow } {}\mathrm {NaTcO} {\vphantom {A}}_{\smash[{t}]{4}}{}+{}\mathrm {H} {\vphantom {A}}_{\smash[{t}]{2}}\mathrm {O} }}" loading="lazy"></span></dd>
<dd><small><a href="Natriumhydroxid" title="Natriumhydroxid">Natriumhydroxid</a> und <a href="Pertechnetiums%C3%A4ure" title="Pertechnetiumsäure">Pertechnetiumsäure</a> reagieren zu <a href="Natriumpertechnetat" title="Natriumpertechnetat">Natriumpertechnetat</a> und <a href="Wasser" title="Wasser">Wasser</a>.</small></dd></dl>
<dl><dd><span class="mwe-math-element mwe-math-element-inline"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {KOH + HTcO4 -> KTcO4 + H2O}}}">
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<annotation encoding="application/x-tex">{\displaystyle {\ce {KOH + HTcO4 -&gt; KTcO4 + H2O}}}</annotation>
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</math></span><img src="./_assets_/eb734a37dd21ce173a46342d1cc64c92/63757bedf78134fa23290941e8bf0f6b16a5eadc.svg" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:35.438ex; height:2.843ex;" alt="{\displaystyle {\mathrm {KOH} {}+{}\mathrm {HTcO} {\vphantom {A}}_{\smash[{t}]{4}}{}\mathrel {\longrightarrow } {}\mathrm {KTcO} {\vphantom {A}}_{\smash[{t}]{4}}{}+{}\mathrm {H} {\vphantom {A}}_{\smash[{t}]{2}}\mathrm {O} }}" loading="lazy"></span></dd>
<dd><small><a href="Kaliumhydroxid" title="Kaliumhydroxid">Kaliumhydroxid</a> und Pertechnetiumsäure reagieren zu <a href="Kaliumpertechnetat" title="Kaliumpertechnetat">Kaliumpertechnetat</a> und Wasser.</small></dd></dl>
<div class="mw-heading mw-heading2"><h2 id="Eigenschaften">Eigenschaften</h2></div>
<p>Die Pertechnetate sind analog zu dem <a href="Perrhenat" class="mw-redirect" title="Perrhenat">Perrhenat</a>-Ion und dem <a href="Perchlorat" class="mw-redirect" title="Perchlorat">Perchlorat</a>-Ion tetragonal aufgebaut. Sie teilen mit den Perrhenaten ein ähnliches Verhalten.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Die Pertechnetate kristallisieren in meist gleiche <a href="Kristallstruktur" title="Kristallstruktur">Kristallstrukturen</a>. <a href="Natriumpertechnetat" title="Natriumpertechnetat">Natrium-</a>, <a href="Kaliumpertechnetat" title="Kaliumpertechnetat">Kalium-</a>, <a href="Rubidiumpertechnetat" title="Rubidiumpertechnetat">Rubidium-</a> und Silber(I)-pertechnetat kristallisieren in einer tetragonaler Kristallstruktur mit der <a href="Raumgruppe" title="Raumgruppe">Raumgruppe</a> <i>I</i>4<sub>1</sub>/<i>a</i> (Raumgruppen-Nr. 88)<span style="display:none;">Vorlage:Raumgruppe/88</span><span class="editoronly" style="display:none;"></span>. <a href="Caesiumpertechnetat" title="Caesiumpertechnetat">Caesiumpertechnetat</a> und Thalliumpertechnetat kristallisieren in der <a href="Orthorhombisches_Kristallsystem" title="Orthorhombisches Kristallsystem">orthorhombischen</a> Raumgruppe <i>Pnma</i> (Nr. 62)<span style="display:none;">Vorlage:Raumgruppe/62</span><span class="editoronly" style="display:none;"></span>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">Steven A. Luksic, Brian J. Riley, Kent E. Parker, Pavel Hrma: <cite style="font-style:italic">Sodalite as a vehicle to increase Re retention in waste glass simulant during vitrification</cite>. In: <cite style="font-style:italic">Journal of Nuclear Materials</cite>. Oktober 2016, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em">&nbsp;</span>331–337</span>, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1016/j.jnucmat.2016.07.002">10.1016/j.jnucmat.2016.07.002</a></span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rfr_id=info:sid/de.wikipedia.org:Pertechnetate&amp;rft.atitle=Sodalite+as+a+vehicle+to+increase+Re+retention+in+waste+glass+simulant+during+vitrification&amp;rft.au=Steven+A.+Luksic%2C+Brian+J.+Riley%2C+Kent+E.+Parker%2C+...&amp;rft.btitle=Journal+of+Nuclear+Materials&amp;rft.date=2016-10&amp;rft.doi=10.1016%2Fj.jnucmat.2016.07.002&amp;rft.genre=book&amp;rft.pages=331-337" style="display:none">&nbsp;</span></span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">Klaus Schwochau: <cite style="font-style:italic">Technetium: Chemistry and Radiopharmaceutical Applications</cite>. John Wiley &amp; Sons, 2008, ISBN 3-527-61337-4, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em">&nbsp;</span>131</span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rfr_id=info:sid/de.wikipedia.org:Pertechnetate&amp;rft.au=Klaus+Schwochau&amp;rft.btitle=Technetium%3A+Chemistry+and+Radiopharmaceutical+Applications&amp;rft.date=2008&amp;rft.genre=book&amp;rft.isbn=3527613374&amp;rft.pages=131&amp;rft.pub=John+Wiley+%26+Sons" style="display:none">&nbsp;</span></span>
</li>
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