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Re: Trace element mixes
> From: MajikAqua at aol_com
> Subject: Trace Mix in PMDD
> This may be a dumb question, but if the trace mix that PMDD calls for adds up
> to barely 10% trace minerals...then what is the other 90% made of?
For the elements Fe, Mn, Cu and Zn you have chelating agent and a
counterion. Fe(III)EDTA has a single negative charge, and the others with
EDTA will have a double negative charge. The most likely counterion is sodium,
but it isn't in amounts that will cause a problem. Boron will be there as
boric acid or a borate, so there is oyygen there, and molybdenum will be
there as a molybdate, which means that there is oxygen and a counterion.
There may also be some water of crystallysation for some of the compounds.
Paul Sears Ottawa, Canada