Chemistry Journal of Moldova

A NEW MODEL OF CHEMICAL DISSOLUTION OF SOLIDS: AN ANALYSIS OF THE MECHANISM OF DISSOLUTION OF MONODISPERSED MATERIALS

Author(s):

Alma Ryskaliyeva, Murat Baltabayev, Yerassyl Mukhamediyar, Rabiga Iskendirova


Field: Physical chemistry and chemical physics
Type: Research paper
Issue: 2022 Volume 17, no.1
Pages: 31-36
Keywords:

mineral, dissolution, kinetics, thermodynamics, reactivity.


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Abstract (PDF)
Graphical Abstract: On the basis of a new model of chemical dissolution, an analysis of the kinetic parameters obtained using the modified V.V. Dolivo-Dobrovolsky equation was carried out. It shows that the change in parameters during the transition from one mineral to another is subject to a compensation effect. Additionally, calculations based on the new dissolution model made it possible to distinguish between the systemic and individual properties of minerals of the same nature in the process of dissolution. These minerals differ from each other by the concentration of ac tive surface complexes, and are combined into a system by a single transmission coefficient and the same value of the lifetime of the active complex.
  


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