Open AccessStudy of dissolution kinetics of manganese dioxide in oxalic and citric acids solutions
Author(s) -
И. В. Артамонова,
И. Г. Горичев,
Е. О. Забенькина,
E B Godunov,
С. М. Русакова
Publication year - 2010
Publication title -
izvestiâ mgtu "mami"
Language(s) - English
Resource type - Journals
eISSN - 2949-1428
pISSN - 2074-0530
DOI - 10.17816/2074-0530-69714
Subject(s) - dissolution , oxalic acid , manganese , kinetics , citric acid , inorganic chemistry , chemistry , leaching (pedology) , manganese oxide , ion , nuclear chemistry , organic chemistry , geology , physics , quantum mechanics , soil science , soil water
The paper studies the influence of citrate and oxalates - ions on kinetics of dissolution of manganese dioxide. It is found that the speed of dissolution increases along with concentration of citric and oxalic acids. Orders on citrate and to oxalates - ions are designed. The empirical formulas describing dependence of speed of dissolution from concentration of the specified acids are offered. In order to obtain the optimal modes of leaching of manganous oxide from anthropogenic raw material the authors investigate the influence рН on the speed of MnO2 dissolution in oxalic acid.