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Correct way to make 5% solution of sodium sesquicarbonate for Bronze Disease treatment.
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<p>[QUOTE="-jeffB, post: 3292815, member: 27832"]Bravo!</p><p><br /></p><p>I might suggest one small addition: you mention first soaking coins in acetone to remove varnish or wax, before you do the sesquicarbonate soak (in individual plastic cups). These are both great ideas -- just <b>don't</b> try to do the acetone soak in one of those plastic cups! Acetone <i>loves</i> to eat its way through many plastics. (Ask me how I know.)</p><p><br /></p><p>Do the acetone soak in a <i>glass or metal</i> container. You don't have to worry about electrolytic effects from dissimilar metals, but I still prefer to soak one coin at a time. (Then again, I'm one of those prissy modern collectors, and I don't with many things that have spent centuries in the ground.)[/QUOTE]</p><p><br /></p>
[QUOTE="-jeffB, post: 3292815, member: 27832"]Bravo! I might suggest one small addition: you mention first soaking coins in acetone to remove varnish or wax, before you do the sesquicarbonate soak (in individual plastic cups). These are both great ideas -- just [B]don't[/B] try to do the acetone soak in one of those plastic cups! Acetone [I]loves[/I] to eat its way through many plastics. (Ask me how I know.) Do the acetone soak in a [I]glass or metal[/I] container. You don't have to worry about electrolytic effects from dissimilar metals, but I still prefer to soak one coin at a time. (Then again, I'm one of those prissy modern collectors, and I don't with many things that have spent centuries in the ground.)[/QUOTE]
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Correct way to make 5% solution of sodium sesquicarbonate for Bronze Disease treatment.
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