| Issue |
E3S Web Conf.
Volume 688, 2026
The 2nd International Conference on Sustainable Environment, Development, and Energy (CONSER 2025)
|
|
|---|---|---|
| Article Number | 02003 | |
| Number of page(s) | 8 | |
| Section | Sustainable Mining Practices, Reducing Environmental Impact, and Resource Efficiency | |
| DOI | https://doi.org/10.1051/e3sconf/202668802003 | |
| Published online | 20 January 2026 | |
Research on the Influence of Technological Parameters and the Physicochemical Properties of the C10H12N2O8Na4 – FeCl3 – H2O System
1 Karakalpak State University, Nukus, Karakalpakstan, 230100, Uzbekistan
2 Tashkent Institute of Chemical Technology, 100011, Tashkent, Uzbekistan
3 Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan, 100170, Tashkent, Uzbekistan
4 University of Economics and Pedagogy, Karshi, 106959, Uzbekistan
5 Almalyk State Technical Institute, Almalyk, 110100, Uzbekistan
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
This article presents the results of a study on the influence of technological parameters on the physicochemical properties of the EDTA-4Na - FeCl3 - H2O system within a wide range of selected technological parameters. Specifically, the effect of the concentration of FeCl3 solutions and their ratio relative to EDTA-4Na was investigated. It was found that with an increase in the EDTA-4Na ratio, the system's pH increases from 1.271 - 1.608 to 2.938 - 4.117 and 6.426 - 7.795. Furthermore, with an increase in FeCl3 concentration at a constant ratio, a slight decrease in pH is observed up to 30%, followed by a sharp increase at 40%. Further increase in FeCl3 concentration leads to a slight decrease. This pattern is consistent across all ratios. The pH difference of the system when using 30% and 10% FeCl3 solutions is 0.216, 2.89, and 1.327 at ratios of 50, 100, and 150%, respectively.
© The Authors, published by EDP Sciences, 2026
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