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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Kaliumpertechnetat</span></h1>
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<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><table class="wikitable infobox float-right" id="Vorlage_Infobox_Chemikalie" style="font-size:90%; margin-top:0; width:350px;" summary="Infobox Chemikalie">
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<th colspan="2" style="background:#FFDEAD; color:#202122;">Kristallstruktur
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<td colspan="2" class="hintergrundfarbe-basis" style="text-align:center;"><span typeof="mw:File"></span>
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<td colspan="2" style="text-align:center; font-size:80%;"><span style="background:#C0C0C0;border-radius: 12px;color: transparent; width: 12px; line-height:12px;display:inline-block;">_</span> <a href="Kalium" title="Kalium">K</a><sup>+</sup> <span style="visibility:hidden;">0</span> <span style="background:#303030;border-radius: 12px;color: transparent; width: 12px; line-height:12px;display:inline-block;">_</span> <a href="Technetium" title="Technetium">Tc</a><sup>7+</sup><span style="visibility:hidden;">0</span> <span style="background:#FF0000;border-radius: 12px;color: transparent; width: 12px; line-height:12px;display:inline-block;">_</span> <a href="Sauerstoff" title="Sauerstoff">O</a><sup>2−</sup>
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<td><a href="Kristallsystem" title="Kristallsystem">Kristallsystem</a>
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<td>
<p><a href="Tetragonales_Kristallsystem" title="Tetragonales Kristallsystem">tetragonal</a>
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<td><a href="Raumgruppe" title="Raumgruppe">Raumgruppe</a>
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<td>
<p><i>I</i>4<sub>1</sub>/<i>a</i><span style="display:none;">Vorlage:Raumgruppe/88</span><span class="editoronly" style="display:none;"></span>
</p>
</td></tr>
<tr>
<td><a href="Gitterparameter" title="Gitterparameter">Gitterparameter</a>
</td>
<td>
<ul><li>a = 563,0 pm</li>
<li>c = 1286,7 pm</li></ul>
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<th colspan="2" style="background:#FFDEAD; color:#202122;">Allgemeines
</th></tr>
<tr>
<td style="width:33%;">Name
</td>
<td>Kaliumpertechnetat
</td></tr>
<tr>
<td><a href="Verh%C3%A4ltnisformel" title="Verhältnisformel">Verhältnisformel</a>
</td>
<td>KTcO<sub>4</sub>
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<td>Kurzbeschreibung
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<td>
<p>weißer Feststoff<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>
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<th colspan="2" style="background:#FFDEAD; color:#202122;">Externe Identifikatoren/Datenbanken
</th></tr>
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<td colspan="2" style="padding:0;">
<table class="mw-collapsible mw-collapsed wikitable" data-expandtext="+" data-collapsetext="−" style="border-top:none; margin:-1px; width:calc(100% + 2px);">
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<td style="width:33%;"><a href="CAS-Nummer" title="CAS-Nummer">CAS-Nummer</a>
</td>
<td><span title="Untervorlage eingebunden: CASRN"></span><span class="KeinCASLink" title="CAS-Nummer ohne Common-Chemistry-Eintrag">13718-33-7</span><span class="editoronly" style="display:none;"></span>
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<td style="background:#FFDEAD; color:#202122; border-top:1px solid #FFDEAD; padding:0.2em 0; vertical-align:bottom; width:5%;">
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<td style="border-right:1px solid #a2a9b1;"><a href="Wikidata" title="Wikidata">Wikidata</a>
</td>
<td colspan="2"><a href="https://www.wikidata.org/wiki/Q18212441" class="extiw external" title="d:Q18212441">Q18212441</a>
</td></tr></tbody></table>
</td></tr>
<tr>
<th colspan="2" style="background:#FFDEAD; color:#202122;">Eigenschaften
</th></tr>
<tr>
<td><a href="Molare_Masse" title="Molare Masse">Molare Masse</a>
</td>
<td>201,1 g·<a href="Mol" title="Mol">mol</a><sup>−1</sup>
</td></tr>
<tr>
<td><a href="Aggregatzustand" title="Aggregatzustand">Aggregatzustand</a>
</td>
<td>
<p>fest
</p>
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<td><a href="Schmelzpunkt" title="Schmelzpunkt">Schmelzpunkt</a>
</td>
<td>
<p>540 °C<sup id="cite_ref-Technetium:_Chemistry_and_Radiopharmaceutical_Applications_2-0" class="reference"><a href="#cite_note-Technetium:_Chemistry_and_Radiopharmaceutical_Applications-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p>
</td></tr>
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<td><a href="L%C3%B6slichkeit" title="Löslichkeit">Löslichkeit</a>
</td>
<td>
<p>2,13 g·l<sup>−1</sup> (25 °C)<sup id="cite_ref-Technetium:_Chemistry_and_Radiopharmaceutical_Applications_2-1" class="reference"><a href="#cite_note-Technetium:_Chemistry_and_Radiopharmaceutical_Applications-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p>
</td></tr>
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<th colspan="2" style="background:#FFDEAD; color:#202122;">Gefahren- und Sicherheitshinweise
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<td colspan="2" style="padding-top:7px; text-align:center;"><span typeof="mw:File"></span><br><span style="line-height:1.1em;"><b><a href="Radioaktiv" class="mw-redirect" title="Radioaktiv">Radioaktiv</a></b></span>
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<tr>
<td colspan="2">
<table cellspacing="0" cellpadding="2" style="width:100%;">
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<td colspan="2" style="text-align:center"><b><a href="Global_harmonisiertes_System_zur_Einstufung_und_Kennzeichnung_von_Chemikalien" title="Global harmonisiertes System zur Einstufung und Kennzeichnung von Chemikalien">GHS-Gefahrstoffkennzeichnung</a></b><br><i>keine Einstufung verfügbar</i><sup id="cite_ref-NV_3-0" class="reference"><a href="#cite_note-NV-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>
</td></tr></tbody></table>
</td></tr>
<tr>
<td colspan="2" style="background:#FFDEAD; color:#202122; font-size:80%; text-align:center; line-height:150%; padding:.25em;">Wenn nicht anders vermerkt, gelten die angegebenen Daten bei <a href="Standardbedingungen" title="Standardbedingungen">Standardbedingungen</a> (0 °C, 1000 hPa).
</td></tr></tbody></table><p><span class="editoronly" style="display:none;"></span>
</p><p><b>Kaliumpertechnetat</b>, KTcO<sub>4</sub> ist eine <a href="Chemische_Verbindung" title="Chemische Verbindung">chemische Verbindung</a> des <a href="Kalium" title="Kalium">Kaliums</a> aus der Gruppe der <a href="Pertechnetate" title="Pertechnetate">Pertechnetate</a>.
</p>
<div class="mw-heading mw-heading2"><h2 id="Gewinnung_und_Darstellung">Gewinnung und Darstellung</h2></div>
<p>Kaliumpertechnetat kann durch die <a href="Neutralisation_(Chemie)" title="Neutralisation (Chemie)">Neutralisation</a> der <a href="Pertechnetiums%C3%A4ure" title="Pertechnetiumsäure">Pertechnetiumsäure</a> mit <a href="Kaliumhydroxid" title="Kaliumhydroxid">Kaliumhydroxid</a> gewonnen werden.<sup id="cite_ref-Chemical_Trends_in_Solid_Alkali_Pertechnetates_4-0" class="reference"><a href="#cite_note-Chemical_Trends_in_Solid_Alkali_Pertechnetates-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>
</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 {KOH + HTcO4 -> KTcO4 + H2O}}}">
<semantics>
<mrow class="MJX-TeXAtom-ORD">
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<mrow class="MJX-TeXAtom-ORD">
<mtext>KOH</mtext>
<mo>+</mo>
<msubsup>
<mtext>HTcO</mtext>
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<mn>4</mn>
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<mspace width="0pt" height="0pt" depth=".2em"></mspace>
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</msubsup>
<mo stretchy="false">⟶<!-- ⟶ --></mo>
<msubsup>
<mtext>KTcO</mtext>
<mrow class="MJX-TeXAtom-ORD">
<mn>4</mn>
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<mrow class="MJX-TeXAtom-ORD">
<mspace width="0pt" height="0pt" depth=".2em"></mspace>
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</msubsup>
<mo>+</mo>
<msubsup>
<mtext>H</mtext>
<mrow class="MJX-TeXAtom-ORD">
<mn>2</mn>
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<mrow class="MJX-TeXAtom-ORD">
<mspace width="0pt" height="0pt" depth=".2em"></mspace>
</mrow>
</msubsup>
<mtext>O</mtext>
</mrow>
</mstyle>
</mrow>
<annotation encoding="application/x-tex">{\displaystyle {\ce {KOH + HTcO4 -> KTcO4 + H2O}}}</annotation>
</semantics>
</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>
</p>
<div class="mw-heading mw-heading2"><h2 id="Eigenschaften">Eigenschaften</h2></div>
<p>Der Abstand der Tc–O-Bindung liegt bei 173,9 <a href="Picometer" class="mw-redirect" title="Picometer">pm</a> und der Winkel der O–Tc–O-Bindung bei 108,05° und 110,19°. Der Abstand zwischen dem <a href="Kalium" title="Kalium">Kalium</a> und dem <a href="Sauerstoff" title="Sauerstoff">Sauerstoff</a> beträgt 289,36 pm und 286 pm.<sup id="cite_ref-Chemical_Trends_in_Solid_Alkali_Pertechnetates_4-1" class="reference"><a href="#cite_note-Chemical_Trends_in_Solid_Alkali_Pertechnetates-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Kaliumpertechnetat kristallisiert in einer <a href="Kaliumperrhenat" title="Kaliumperrhenat">Kaliumperrhenat</a>-ähnlichen <a href="Kristallstruktur" title="Kristallstruktur">Kristallstruktur</a> 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>. Die <a href="Gitterparameter" title="Gitterparameter">Gitterparameter</a> liegen bei a = 563,0 pm und c = 1286,7 pm.<sup id="cite_ref-Technetium:_Chemistry_and_Radiopharmaceutical_Applications_2-2" class="reference"><a href="#cite_note-Technetium:_Chemistry_and_Radiopharmaceutical_Applications-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p>
<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">Jane E. Macintyre: <cite style="font-style:italic">Dictionary of Inorganic Compounds</cite>. CRC Press, 1992, ISBN 0-412-30120-2, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em"> </span>3535</span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rfr_id=info:sid/de.wikipedia.org:Kaliumpertechnetat&rft.au=Jane+E.+Macintyre&rft.btitle=Dictionary+of+Inorganic+Compounds&rft.date=1992-07&rft.genre=book&rft.isbn=0412301202&rft.pages=3535&rft.pub=CRC+Press" style="display:none"> </span></span>
</li>
<li id="cite_note-Technetium:_Chemistry_and_Radiopharmaceutical_Applications-2"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Technetium:_Chemistry_and_Radiopharmaceutical_Applications_2-0">a</a></sup> <sup><a href="#cite_ref-Technetium:_Chemistry_and_Radiopharmaceutical_Applications_2-1">b</a></sup> <sup><a href="#cite_ref-Technetium:_Chemistry_and_Radiopharmaceutical_Applications_2-2">c</a></sup></span> <span class="reference-text">Klaus Schwochau: <cite style="font-style:italic">Technetium: Chemistry and Radiopharmaceutical Applications</cite>. John Wiley & Sons, 2008, ISBN 3-527-61337-4, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em"> </span>129</span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rfr_id=info:sid/de.wikipedia.org:Kaliumpertechnetat&rft.au=Klaus+Schwochau&rft.btitle=Technetium%3A+Chemistry+and+Radiopharmaceutical+Applications&rft.date=2008-11&rft.genre=book&rft.isbn=3527613374&rft.pages=129&rft.pub=John+Wiley+%26+Sons" style="display:none"> </span></span>
</li>
<li id="cite_note-NV-3"><span class="mw-cite-backlink"><a href="#cite_ref-NV_3-0">↑</a></span> <span class="reference-text">Die von der Radioaktivität ausgehenden Gefahren gehören nicht zu den einzustufenden Eigenschaften nach der GHS-Kennzeichnung. In Bezug auf weitere Gefahren wurde dieser Stoff entweder noch nicht eingestuft oder eine verlässliche und zitierfähige Quelle hierzu wurde noch nicht gefunden. </span>
</li>
<li id="cite_note-Chemical_Trends_in_Solid_Alkali_Pertechnetates-4"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-Chemical_Trends_in_Solid_Alkali_Pertechnetates_4-0">a</a></sup> <sup><a href="#cite_ref-Chemical_Trends_in_Solid_Alkali_Pertechnetates_4-1">b</a></sup></span> <span class="reference-text">Jamie Weaver, Chuck Z. Soderquist, Nancy M. Washton, Andrew S. Lipton, Paul L. Gassman, Wayne W. Lukens, Albert A. Kruger, Nathalie A. Wall, John S. McCloy: <cite style="font-style:italic">Chemical Trends in Solid Alkali Pertechnetates</cite>. Inorg. Chem., Februar 2017, <span style="white-space:nowrap">S.<span style="display:inline-block;width:.2em"> </span>2533–2544</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/10.1021/acs.inorgchem.6b02694">10.1021/acs.inorgchem.6b02694</a></span>.<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rfr_id=info:sid/de.wikipedia.org:Kaliumpertechnetat&rft.au=Jamie+Weaver%2C+Chuck+Z.+Soderquist%2C+Nancy+M.+Washton%2C+...&rft.btitle=Chemical+Trends+in+Solid+Alkali+Pertechnetates&rft.date=2017-02&rft.doi=10.1021%2Facs.inorgchem.6b02694&rft.genre=book&rft.pages=2533-2544&rft.pub=Inorg.+Chem." style="display:none"> </span></span>
</li>
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