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BioForum _ General Lab Techniques _ EDTA dissolution

Posted by: fguilhem Feb 2 2005, 06:29 AM

hi
i'm trying to make a solution of edta 0.5M
as said in books, edta will dissolve in ph near 8
but i want an edta solution at ph 7.2 without any chloridric acid addition.
is it possible?

thanks

Posted by: patirl Feb 2 2005, 10:51 AM

hi

I've never heard of EDTA at a pH lower than 8.
Sorry can't be of much help. Definitely doesn't dissolve using HCl until you reach very close to 8.

Posted by: biogeek Feb 14 2005, 01:44 PM

EDTA won't go into solution until you reach pH 8.0.

Posted by: sharath Feb 25 2005, 04:29 AM

Di sodium salt of EDTA should dissolve at 7.2. But, i donot the know the probability at 0.5M concentration.