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<p>[QUOTE=&quot;Insider, post: 2350207, member: 24314&quot;]No.&nbsp; Many dips are acids.&nbsp; Some chemical &quot;dips&quot; are not...Ivory soap.&nbsp; After a while (depends on a multitude of variables), when improperly used, when used on the wrong coin etc, etc&nbsp; both acidic and basic dips will eventually destroy luster as they EAT AWAY some coinage metals.</p><p><br /></p><p>A chemist <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie6" alt=":cool:" unselectable="on" unselectable="on" /> just put an end to the myth that thiourea is an acid. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie10" alt=":oops:" unselectable="on" unselectable="on" /></p><p><br /></p><p>Now, ask the chemist your questions as I don&#039;t claim to be one <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie80" alt=":shame:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie46" alt=":facepalm:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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