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<p>[QUOTE=&quot;calcol, post: 24683884, member: 77639&quot;]Actually, acetone is a drying agent.&nbsp; It&#039;s often used in labs for quickly drying glassware and ceramics.&nbsp; It&#039;s miscible in all proportions with water and evaporates quickly.&nbsp; Caution!&nbsp; The vapor is highly flammable.</p><p><br /></p><p>If you think there is any water-soluble or water-dispersible substances on the coin, rinse with warm distilled water.&nbsp; Then rinse with or dip in acetone.&nbsp; Use reagent grade acetone; you can get it online.&nbsp; Then place the coin on a clean polyethylene sandwich or 1-gal bag.&nbsp; The acetone will dry on the up side in a minute or two; then turn it over for the opposite side to dry.&nbsp;&nbsp; One advantage of using acetone for drying is that it will quickly remove water from even the tiniest crevices and pores ... important for water-reactive metals like iron.</p><p><br /></p><p>Cal[/QUOTE]</p><p><br /></p>

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