Manganese(III) Oxide Powder (Mn2O3)
(mn2o3 powder)
Chemical Formula: Mn2O3. A compound of manganese and oxygen.
Common Names: Manganese sesquioxide, Manganic oxide.
Appearance: Dark brown or black powder.
Crystal Structure: Primarily exists in the cubic bixbyite structure (alpha-Mn2O3) at room temperature.
Properties: Insoluble in water. Exhibits semiconductor behavior. Thermally decomposes to Mn3O4 around 1000°C in air. Stable under ambient conditions.
Key Production Methods:
* Thermal Decomposition: Heating manganese(II) nitrate, carbonate, or hydroxide in air.
* Oxidation: Controlled oxidation of MnO or Mn3O4.
* Reduction: Reduction of MnO2 under specific conditions.
Major Applications:
* Lithium-Ion Batteries: Investigated as a cathode material precursor due to manganese’s lower cost and reduced toxicity compared to cobalt.
* Catalysis: Used as a catalyst or catalyst precursor in oxidation reactions (e.g., CO oxidation, VOC removal) and organic synthesis.
* Pigments: Imparts brown/black colors in ceramics, glasses, and glazes.
* Ferrites: Component in the production of soft magnetic ferrites for electronics.
* Water Treatment: Potential use in oxidizing contaminants.
* Chemical Reagent: Starting material for synthesizing other manganese compounds.
Handling: Handle with care. Use appropriate PPE (gloves, eye protection, dust mask). Avoid inhalation and skin contact. Store in a cool, dry place away from incompatible materials. Consult SDS for detailed safety information.
(mn2o3 powder)
Unique Aspect: Its bixbyite structure and mixed Mn(III) valence state contribute to its interesting magnetic and catalytic properties. Research focuses on enhancing its electrochemical performance for battery applications.
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