| Issue |
E3S Web of Conf.
Volume 401, 2023
V International Scientific Conference “Construction Mechanics, Hydraulics and Water Resources Engineering” (CONMECHYDRO - 2023)
|
|
|---|---|---|
| Article Number | 03046 | |
| Number of page(s) | 7 | |
| Section | Road Construction, Building Structures and Materials | |
| DOI | https://doi.org/10.1051/e3sconf/202340103046 | |
| Published online | 11 July 2023 | |
Study of the Composition and Model Parameters of Complexes Formed in Fe(II)-Fe(III)-Ascorbic Acid-Water Systems
Tajik National University, Dushanbe, Tajikistan
* Corresponding author: kfk1964@mail.ru
The redox system Fe(II)-Fe(III)-ascorbic acid-water at 298.16 K and 0.5 mol/l solution ionic strength was studied by the Clark-Nikolsky redox potential method. It was found that five complexes of Fe(III) composition are formed in the system: [Fe(HAsc)]2+; [Fe(HAsc)]+; [FeIIFeIII(HAsc)2(OH)2]+; [FeAsc]+; [Fe(Asc)2]-and four coordination compounds Fe(II)-[Fe(HAsc)]+; [FeIIFeIII(HAsc)2(OH)2]+[Fe(HAsc)2]0; [Fe(Asc)]0. Models of ionic equilibria have been compiled, and the domination areas of the complexes have been determined.
Key words: oxredmetry / iron(II) / iron(III) / ascorbic acid / coordination compound / dependence / EMF / dominance stability / model
© The Authors, published by EDP Sciences, 2023
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