peacefulspring Posted April 5, 2009 Share Posted April 5, 2009 Hi, can anyone tell me how to dissolve EDTA with acid and alkaline with the concentration of the reagents also. Thanks. Link to comment Share on other sites More sharing options...
Kaeroll Posted April 5, 2009 Share Posted April 5, 2009 Unfortunately I don't have access to belstein from home, or I'd look it up for you. I imagine EDTA is reasonably soluble at neutral pH, but you could use pKa values to work out a pH at which it will be charged and buffer your solution to that. Alternatively, figure it out experimentally. Put some EDTA in a beaker with water (I assume that's the solvent you're using) and see how pH affects solubility. Link to comment Share on other sites More sharing options...
CharonY Posted April 6, 2009 Share Posted April 6, 2009 Generally EDTA dissolves OKish at high pH (around 8). I think you may get up to 0.5 M then. At near neutral you would only get a couple of mM into solution (I think around 10, but I may be wrong). Link to comment Share on other sites More sharing options...
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