Caesium perchlorate

<p>Caesium perchlorate or cesium perchlorate (CsClO4), is a <a href="/facts/Perchlorate/WCC53zS2">perchlorate</a> of <a href="/facts/Caesium/dXKN1S5k">caesium</a>. It forms white crystals, which are sparingly soluble in cold water and <a href="/facts/Ethanol/3lCLfBSP">ethanol</a>. It dissolves more easily in hot water.
</p><p>CsClO4 is the second least soluble of the alkali metal perchlorates (after Fr, followed by Rb, K, Li, and Na), a property which may be used for separatory purposes and even for <a href="/facts/Gravimetric_analysis/FtMjzQly">gravimetric analysis</a>. This low solubility played an important role in the characterization of <a href="/facts/Francium/P3Rz4gDP">francium</a> as an alkali metal, as francium perchlorate <a href="/facts/Coprecipitation/K3oC2U1X">coprecipitates</a> with caesium perchlorate.
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Table of solubility in water<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a><a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a><table><tbody><tr><th>Temperature (°C)</th><td>0</td><td>8.5</td><td>14</td><td>25</td><td>40</td><td>50</td><td>60</td><td>70</td><td>99</td></tr><tr><th>Solubility (g / 100 ml)</th><td>0.8</td><td>0.91</td><td>1.91</td><td>1.974</td><td>3.694</td><td>5.47</td><td>7.30</td><td>9.79</td><td>28.57</td></tr></tbody></table>
<p>When heated, CsClO4 decomposes to <a href="/facts/Caesium_chloride/MKPHoL6m">caesium chloride</a> above 250 °C. Like all perchlorates, it is a strong oxidant and may react violently with reducing agents and organic materials, especially at elevated temperatures.
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Caesium perchlorate open-in-new

Caesium perchlorate