Funct. Mater. 2017; 24 (2): 322-327.
Study of Mn2+ and MnO4- products interaction in alkaline solution
1State Scientific Institution Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 Nauky Ave., 61001 Kharkiv, Ukraine
2V.Karazin Kharkiv National University, 4 Svobody Sq., 61022 Kharkiv, Ukraine
3NTU Kharkiv Polytechnic Institute, 2 Kyrpychova Str., 61002 Kharkiv, Ukraine
4Institute for Scintillation Materials, Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 Nauky Ave., 61178 Kharkiv, Ukraine
Interaction of Mn2+ ions with MnO4- in alkaline medium is considered. The main component of this interaction is manganese oxyhydroxide MnO(OH) and not manganese dioxide, that is revealed by means of X-ray diffraction analysis, IR-spectrometry and chemical analysis. It is demonstrated that decomposition of MnO(OH) occurs in the wide temperature range (60-550 °C), that results in mixture of Mn2O3 and MnO2 oxides formation.
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