Antimony pentasulfide

<h2 id="production">Production</h2>
<p>Antimony pentasulfide can be produced by the reaction of antimony with sulfur at a temperature from 250 to 400 °C in an inert atmosphere.
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<h2 id="uses">Uses</h2>
<p>It may be used as a red <a href="/facts/Pigment/I3clCYkF">pigment</a> and is one possible precursor to <a href="/facts/Schlippe%27s_Salt/fBy5zYhP">Schlippe's salt</a>, Na3SbS4·9H2O, which can be prepared according to the equation:
</p>
3 Na2S + Sb2S5 + 9 H2O → 2 Na3SbS4·9H2O
<p>It is also used in the <a href="/facts/Vulcanization/jmBUqGaz">vulcanization</a> of <a href="/facts/Rubber/CbsjJxhY">rubber</a> to produce red rubber.
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<h2 id="physical-chemistry">Physical chemistry</h2>
<p>Like many <a href="/facts/Sulfide/d8YMjLeu">sulfides</a>, this compound liberates <a href="/facts/Hydrogen_sulfide/UbCqjMMk">hydrogen sulfide</a> upon treatment with <a href="/facts/Strong_acid/vJ4rj6Lu">strong acids</a> such as <a href="/facts/Hydrochloric_acid/HqItJlUT">hydrochloric acid</a>.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a>
</p>
6 HCl + Sb2S5 → 2 SbCl3 + 3 H2S + 2 S
<p>Analysis by <a href="/facts/M%C3%B6ssbauer_spectroscopy/GIhmBXL6">Mössbauer spectroscopy</a> indicates that this compound is a derivative antimony(III),<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> explaining the production of <a href="/facts/Antimony(III)_chloride/8SCfjxeL">antimony(III) chloride</a>, rather than <a href="/facts/Antimony(V)_chloride/6hfU9lgW">antimony(V) chloride</a>, upon acidification. It is, therefore, not analogous to the phosphorus(V) compound <a href="/facts/Phosphorus_pentasulfide/fVlznFoE">phosphorus pentasulfide</a>.
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<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Arnold F. Holleman, Nils Wiberg: Lehrbuch der Anorganischen Chemie, 102nd edition, de Gruyter, Berlin 2007, p. 849, ISBN 978-3-11-017770-1. <a href="/wiki/ISBN_(identifier)" target="_blank">/wiki/ISBN_(identifier)</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>Strem MSDS <a href="http://www.strem.com/catalog/printer.php?type=msds&catalog_number=93-5105" target="_blank">http://www.strem.com/catalog/printer.php?type=msds&catalog_number=93-5105</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
<li id="fn:3"><p>G. G. Long; J. G. Stevens; L. H. Bowen; S. L. Ruby (1969). "The oxidation number of antimony in antimony pentasulfide". Inorganic and Nuclear Chemistry Letters. 5 (1): 21–25. doi:10.1016/0020-1650(69)80231-X. <a href="/wiki/Doi_(identifier)" target="_blank">/wiki/Doi_(identifier)</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li>
</ol>

Antimony pentasulfide open-in-new

Antimony pentasulfide