Ethylenediaminetetraacetic Acid → Ethylenediaminetetraacetic acid iron salt

Participants

Reaction Steps

The experiment of Example I was repeated except that 10 mM of the ferric chelate of ethylenediaminetetraacetic acid (Fe-EDTA) solution was used, rather than Fe-HEDTA. The Fe-EDTA was prepared substantially as described in Example I, by dissolving 0.292 g of EDTA in 100 mL of distilled water and adding FeCl3.6H2O, as described in Example I. The composition so produced formed a blue color, as in Example I, in the presence of 0.139 milligram of hemoglobin per deciliter and 50 μM ascorbate.

Provenance & Evidence