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<p>[QUOTE=&quot;Just Carl, post: 260635, member: 4552&quot;]Many in circulation like that. You see in a chem class you take a cent, put it in H2SO4, allow to mostly dissolve, remove what&#039;s left so you don&#039;t loose any money. Now you take the left over solution from numerous such dippings, add more distilled water, filter through filter paper, place the final product in a beaker, place in cabinet with filter paper on top to allow for slow evaporation. If done properly you get a fantastic, dark blue, almost clear, crystaline structure of CuSO4.[/QUOTE]</p><p><br /></p>

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