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Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: wtpenber on June 19, 2008, 10:58:31 AM

Title: Chelator affinity: EDTA and nicotinic acid
Post by: wtpenber on June 19, 2008, 10:58:31 AM

Does anyone know where I may be able to find the following information?

What is the binding affinity of EDTA for the following metals?
What is the binding affinity of nicotinic acid for the following metals?


Chromium +2
iron +3
mercury +2
copper +2
lead +2
zinc +2
cadmium +2
cobalt +2
aluminum +3
iron +2
manganese +2
calcium +2
magnesium +2

Thank you for your help.

Best,
Todd

Title: Re: Chelator affinity: EDTA and nicotinic acid
Post by: Borek on June 19, 2008, 11:35:39 AM

You need something like CRC handbook, where complex formations constants are listed. You may find them also in many analytical chemistry books.