Solubility, speciation and thermodynamics of Fe in reducing aqueous KCl solutions.

ABSTRACT: The solubility of two well-characterized Fe(ii) solid phases (i.e., Fe(OH)₂(cr) and Fe₂(OH)₃Cl(cr)) were investigated in batch undersaturation solubility experiments conducted over a wide range of pH_m (7.5 ≤ pH_m ≤ 10.5) and ionic strength (0.01 M ≤ I ≤ 4.0 M KCl). Solid phase characterization was carried out using XRD including Rietveld analysis, providing key insights into their phase composition and crystallite size. Chemical, thermodynamic and SIT activity models were derived for the system Fe²⁺-K⁺-H⁺-Cl^--OH^--H₂O(l) on the basis of the comprehensive experimental dataset. Solubility constants determined in this work and contribute to improving the descrip

SUBMITTER: Furst PQ 

PROVIDER: S-EPMC12645375 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature