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<p>[QUOTE=&quot;SeptimusT, post: 2992852, member: 91240&quot;]Well, the reason I asked about this is because I don&#039;t know if I&#039;m being impatient. The instructions I find online are so contradictory, ranging from soaking for weeks to soaking for days. I&#039;d taken it out last night to inspect while changing the water, and ended up poking at it to remove more powder.</p><p><br /></p><p>I just wonder whether the distilled water will actually remove the powder, or just make it inactive? There&#039;s no way I could mechanically remove every single fragment of it.</p><p><br /></p><p>Sodium sesquicarbonate remains an option as well, though I&#039;d like to keep it as a last resort because of its possible effects on the silvering. But I do want to cure this once and for all.</p><p><br /></p><p>I appreciate everyone&#039;s advice. I&#039;m also working on a coin with bronze disease, although it is <i>extremely</i> minor compared to this, and should be alright.[/QUOTE]</p><p><br /></p>

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