Open AccessAnticorrosion properties of manganese-containing complex oxides, obtained by stoneware method
Author(s) -
E. A. Nurislamova,
M. Ziganshina,
С Н Степин,
V. A. Mendelson
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/905/1/012051
Subject(s) - pyrolusite , manganese , calcination , pigment , chromium , corrosion , chemistry , aqueous solution , metal , materials science , metallurgy , oxidation state , chemical engineering , inorganic chemistry , catalysis , organic chemistry , engineering
In recent years, in the search for alternatives to toxic anticorrosive chromium pigments, the use of complex metal oxides in this capacity has been actively developed. In this work, the anticorrosive and other physicochemical properties of complex oxides, including manganese in oxidation degrees +4 and +5, obtained by the calcination method were investigated. As a result, it has been shown that the products obtained have good prospects for being used as anti-corrosion pigments. Higher inhibitory properties of pigments containing manganese in oxidation state +5, is probably a consequence of their aqueous extract’s alkaline reaction. During the experiments, it was found that the competitiveness of the synthesized pigments can be markedly enhanced by using natural ore, pyrolusite, as manganese source.