Thorium(IV) hydroxide

<h2 id="production">Production</h2>
<p>Thorium(IV) hydroxide can be produced by reacting <a href="/facts/Sodium_hydroxide/xjtdYtq7">sodium hydroxide</a> and soluble thorium salts.<a class="footnote-ref" id="fnref:1" href="#fn:1"><sup>1</sup></a>
</p>
<h2 id="reactions">Reactions</h2>
<p>New thorium(IV) hydroxide is soluble in acid but its solubility will decrease when older.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a>
</p><p>Thorium(IV) hydroxide will break up at high temperature and produce <a href="/facts/Thorium_dioxide/wboPx2It">thorium dioxide</a>:
</p>
Th(OH)4 → ThO2 + 2 H2O
<p>At high pressure, thorium(IV) hydroxide reacts with <a href="/facts/Carbon_dioxide/xGzpppEp">carbon dioxide</a>, and produce thorium carbonate hemihydrate.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a>
</p>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>《无机化合物制备手册》.朱文祥 主编.化学工业出版社. P143. 【III-251】氢氧化钍（thorium hydroxide） <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>《无机化合物制备手册》.朱文祥 主编.化学工业出版社. P143. 【III-251】氢氧化钍（thorium hydroxide） <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>H. Ehrhardt, H. Seidel, H. Schweer (March 1980). "Hochdrucksynthesen einiger Carbonate mit überkritischem CO2". Zeitschrift für anorganische und allgemeine Chemie (in German). 462 (1): 185–198. doi:10.1002/zaac.19804620121. ISSN 0044-2313. Retrieved 2019-11-23.{{cite journal}}:  CS1 maint: multiple names: authors list (link) <a href="http://doi.wiley.com/10.1002/zaac.19804620121" target="_blank">http://doi.wiley.com/10.1002/zaac.19804620121</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
</ol>

Thorium(IV) hydroxide open-in-new

Thorium(IV) hydroxide