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Structure and application of Manganese Oxide Mn2O3

wallpapers News 2021-12-30
Manganese Oxide Mn2O3 is an oxide with a chemical formula of Mn2O3 and a molecular weight of 157.88. It is a black cubic crystal, insoluble in water, acetic acid, and ammonium chloride solution, but soluble in other inorganic acids. Manganese Oxide Mn2O3 dissolves in cold hydrochloric acid to form a brown solution, turns into a red solution in hot dilute sulfuric acid or concentrated sulfuric acid, decomposes into MnO₂, and manganese nitrate in hot nitric acid, and decomposes into Mn3O4 by heating and releases O₂.
Manganese Oxide Mn2O3 Structure
Manganese Oxide Mn2O3 is unlike many other transition metal oxides in that it does not adopt the corundum (Al2O3) structure. Two forms are generally recognized, α-Mn2O3 and γ-Mn2O3, although a high-pressure form with the CaIrO3 structure has been reported too.
α-Mn2O3 has a cubic bixbyite structure, which is an example of a C-type rare earth sesquioxide. The bixbyite structure is stabilized by the presence of small amounts of Fe3+, pure Mn2O3 has an orthorhombic structure. α-Mn2O3 undergoes antiferromagnetic transition at 80 K. 
γ-Mn2O3 has a structure related to the spinel structure of Mn3O4 where the oxide ions are cubic close-packed. This is similar to the relationship between γ-Fe2O3 and Fe3O4.γ-Mn2O3 is ferrimagnetic with a Néel temperature of 39 K.
Manganese Oxide Mn2O3 application
1. Manganese Oxide Mn2O3 can be used in the printing and dyeing process of fabrics;
2. During the oxidation process of carbon monoxide and organic matter. Manganese Oxide Mn2O3 can also be used to synthesize soft magnetic materials.
3. Manganese Oxide Mn2O3 is an important basic material for the synthesis of lithium-ion batteries;
4. Manganese Oxide Mn2O3 can be used in the printing and dyeing process of fabrics;
5. Manganese oxide (III) can efficiently catalyze and oxidize organic oxides and nitrogen oxides, and catalyze organic conversion reactions;
6, Manganese oxide (III) oxide soft magnetic material precursor;
7. Manganese oxide is used as a raw material for the synthesis of electrode materials for lithium-ion batteries.

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