aliahmadloo Posted January 6, 2017 Report Posted January 6, 2017 I need to find a solvent that will dissolve zinc but not dissolve Fe. Quote
exchemist Posted January 8, 2017 Report Posted January 8, 2017 (edited) I need to find a solvent that will dissolve zinc but not dissolve Fe.Tricky: they are quite close in the electrochemical series. I'd have thought since Zn/Zn 2+ has a reduction potential of -0.76V while Fe/Fe 2+ has one of -0.44V then in theory FeCl2 solution might dissolve Zn and precipitate Fe metal. But I've no idea of this works in practice. FeCl3 might work better (reduction pot +0.77V, so bigger difference from Zn) but that might risk attacking Fe metal as well and turning it all to Fe 2+ . What are you actually trying to do, if may ask? Edited January 9, 2017 by exchemist Quote
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