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<p>[QUOTE=&quot;TallCakes, post: 4244897, member: 107&quot;]on removing the old stuff... this come up in google search:</p><p><br /></p><p>How do you liquify plaster of Paris?</p><p>The sodium in baking soda hooks up with sulfur in the <b>plaster</b>, and the carbon hooks up with the calcium in the <b>plaster</b>. TO BEST <b>DISSOLVE PLASTER OF PARIS</b> PLACE IT IN WARM WATER WITH LOTS OF BAKING SODA.Jan 27, 2011</p><p><a href="https://www.physicsforums.com/threads/how-do-you-dissolve-plaster-of-paris.467257/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.physicsforums.com/threads/how-do-you-dissolve-plaster-of-paris.467257/" rel="nofollow"><br /></a></p><p><a href="https://www.physicsforums.com/threads/how-do-you-dissolve-plaster-of-paris.467257/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.physicsforums.com/threads/how-do-you-dissolve-plaster-of-paris.467257/" rel="nofollow"><font size="4"><b>How do you dissolve plaster of paris | Physics Forums</b></font></a></p><p><a href="https://www.physicsforums.com/threads/how-do-you-dissolve-plaster-of-paris.467257/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.physicsforums.com/threads/how-do-you-dissolve-plaster-of-paris.467257/" rel="nofollow">https://www.physicsforums.com › threads › how-do-you-..</a>[/QUOTE]</p><p><br /></p>

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