Chemical Stability of the Fertilizer Chelates Fe-EDDHA and Fe-EDDHSA over Time

Ewelina Klem-Marciniak; Marta Huculak-Mączka; Kinga Marecka; Krystyna Hoffmann; Józef Hoffmann

doi:10.3390/molecules26071933

Molecules (Mar 2021)

Chemical Stability of the Fertilizer Chelates Fe-EDDHA and Fe-EDDHSA over Time

Ewelina Klem-Marciniak,
Marta Huculak-Mączka,
Kinga Marecka,
Krystyna Hoffmann,
Józef Hoffmann

Affiliations

Ewelina Klem-Marciniak: Department of Engineering and Technology of Chemical Processes, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Marta Huculak-Mączka: Department of Engineering and Technology of Chemical Processes, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Kinga Marecka: Department of Engineering and Technology of Chemical Processes, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Krystyna Hoffmann: Department of Micro, Nano and Bioprocess Engineering, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
Józef Hoffmann: Department of Engineering and Technology of Chemical Processes, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

DOI: https://doi.org/10.3390/molecules26071933
Journal volume & issue: Vol. 26, no. 7
p. 1933

Abstract

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In application conditions, the influence of environmental parameters on used fertilizer chelates and their distribution over time is important. For this purpose, the changes in the content of micronutrient ions and Fe-EDDHA and Fe-EDDHSA chelates in an aqueous medium at different pH values were studied. In the assumed time, changes in the ions content were analyzed using the voltammetry method at pH 3, 5 and 7. The content of isomers and chelate forms was analyzed by ion pair chromatography at pH 3, 5 and 7. These studies allowed us to determine the effect of pH on the stability of iron chelates over time.

Published in Molecules

ISSN: 1420-3049 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/molecules

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