Sequestrene 330 is Fe-DTPA and contains 10% iron according to the
manufacturer, Becker-Underwood.
Sequestrene 138 is Fe-EDDHA and contains 6% iron.
The Merck Index would probably give the chemical formulas.
Here's info from the manufacturer:
http://www.bucolor.com/products/a_seq.html
David Hershey dh321 at excite.com
>===== Original Message From c_pike at ACAD.FANDM.EDU (Carl Pike) =====
>Does anyone know the formulas for the Iron-Sequestrene compounds
>(Sequestrene 330 and Sequestrene 138). I am actually using FeNaEDTA
>in my nutrient solutions, but the recipes I have refer to the
>Sequestrenes, so I need to translate from mg/liter of those products.
>Thanks
>>Carl
>>>---
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