Bluenoise Posted August 3, 2006 Share Posted August 3, 2006 Okay way back when I was a little kid I put a penny in some vinegar. Later some blue crystals formed. Is this copper acetate? probably copper(II) acetate hydrate? thanks that's about it. Link to comment Share on other sites More sharing options...
insane_alien Posted August 3, 2006 Share Posted August 3, 2006 yup thats the most likely unless ther was some other acid in there somehow. Cu(C2H3O2)2.(some number)H20 Link to comment Share on other sites More sharing options...
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