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<p>[QUOTE=&quot;Insider, post: 2725859, member: 24314&quot;]V. Kurt Bellman, answered: &quot;I prefer to report that thiourea dips ALWAYS turn copper unnatural colors, and anything that then ever appears &quot;normal&quot; again on them is due to an extra added treatment AFTER the thiourea dip. My emoji doesn&#039;t read the research and there isn&#039;t an adequate emoji for actually doing the chemistry oneself, as I have done.&nbsp; I gotz beakers, bunson burners, test tubes, rubber gloves, the whole shmegeggy. &#039;N&#039; I uses &#039;em too.&quot;</p><p><br /></p><p>So what. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie104" alt=":yawn:" unselectable="on" unselectable="on" /></p><p><br /></p><p>Thiourea dips ARE USED (correctly when needed) ON CLAD COINS ON A DAILY BASIS.&nbsp; And...<span style="color: #660066">the folks who use it also gotz beakers, bunson burners, test tubes, rubber gloves, the whole shmegeggy, plus many more useful and more expensive things in their lab that you have not mentioned are in yours or &#039;N&#039;s (?).</span> <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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