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Difference between EDTA and HEDTA


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#1 samita

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Posted 24 October 2009 - 09:27 AM

What is difference between EDTA and HEDTA.???

#2 Gerard

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Posted 26 October 2009 - 01:54 AM

ethylenediaminetetraacetic acid
(2-Hydroxyethyl)ethylenediaminetriacetic acid
Ockham's razor
Pluralitas non est ponenda sine necessitate
-- "You must assume no plural without necessity".

#3 Prep!

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Posted 26 October 2009 - 02:22 AM

ya right.. and there is no apparant difference between the two apart from the fact that HEDTA should be easily soluble in water unlike EDTA because of the presence of hydroxyl groups!!!
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#4 mdfenko

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Posted 26 October 2009 - 07:09 AM

ya right.. and there is no apparant difference between the two apart from the fact that HEDTA should be easily soluble in water unlike EDTA because of the presence of hydroxyl groups!!!

and hedta is a triacetic acid whereas edta is a tetraacetic acid. this will lead to differing affinities for cations.

Edited by mdfenko, 26 October 2009 - 07:10 AM.

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Posted 26 October 2009 - 07:36 PM

ya right.. and there is no apparant difference between the two apart from the fact that HEDTA should be easily soluble in water unlike EDTA because of the presence of hydroxyl groups!!!

and hedta is a triacetic acid whereas edta is a tetraacetic acid. this will lead to differing affinities for cations.

:lol: ya right!!! i missed that.. but i saw many research articles which have used both the compounds and found that there was no apparant difference in their affinities!!!
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