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<p>[QUOTE=&quot;Scuba4fun777, post: 5331277, member: 75199&quot;]One word I haven’t seen in this post is ‘hygroscopic’. Acetone is hygroscopic, meaning that it will draw moisture from its surroundings (assuming that it doesn’t evaporate first). In my opinion, that would explain the discoloration.&nbsp; If acetone was not hygroscopic, it would not be able to hold the acetate ion in solution and would not cause the discoloration mentioned. </p><p>On the other hand, xylene is nowhere near as hygroscopic as acetone at room temp. And xylene will not catalyze into any corrosive compounds that I’m aware of. And xylene and acetone have similar solubility profiles. Yes, xylene is slightly more toxic than acetone, but even water is poisonous if you consume too much of it. Working with xylene in a ventilated area for short periods should not pose any health concerns to healthy individuals. </p><p>So, IMO and based on the discussions here, it sounds like xylene should be the solvent of choice.[/QUOTE]</p><p><br /></p>

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