What is it? Mn2O3 Pulver ? Manganese oxide trioxide, a compound with the chemical formula Mn2O3, and a molecularweight of 157.88, is an oxide. Black cubic crystals. Relative densities 4.50 Water, acetic acid, and ammonium chloride solution are insoluble. It is also insoluble in other inorganic acid. Cold hydrochloric acid is used to dissolve it to make a brown solution. Hot dilute sulfuric or concentrated sulfuric Acid is used to make a red solution. When heated, the MnO2 and manganese Nitrate are decomposed and then released as O2. It is available in two forms: a–Mn2O3 (or g–Mn2O3). The a-type is made by decomposing nitrate carbonate or chloride of divalent Manganese in air and heating to 600800. The g type is made by heating MnO2 in vacuum at 50 for 78 hours. Or by g–MnO (OH). It can be used for the printing and dyeing processes of cloth, as well as in the oxidation process carbon monoxide, organic compounds and nitrate.
The properties of Mn2O3 Pulver
Manganese Trioxide is a black cubic crystalline, insoluble and insoluble in water, Acetic Acid, and Ammonium Chloride Solution. It is also soluble with other inorganic acid. When heated to 1080, it becomes Mn3O4 (and O2) It is dissolvable in cold hydrochloric to a brown solution. In Chemicalbook hot dilute or concentrated sulfuric acids, it can be made into a solution that is reddish in color. When heated, it will decompose into MnO2 (manganese nitrate) and O2. It comes in two forms: a–Mn2O3 (g-Mn2O3) and g–Mn2O3 (g-Mn2O3).

Manganese Oxide Mn2O3 Powder Properties
Other Titles	Manganese oxide, Manganese(3+) oxide, Manganese sesquioxide, Dimanganese trioxide, Keto-(ketomanganiooxy)manganese, Manganese(3+) oxide, Manganese trioxide, Oxo-(oxomanganiooxy) manganese
No.	1317-34-6
Combination Formula	Mn2O3
Molecular Weight	157.87
Appearance	Black Solid
Melting Point	940 degC (1724 degF)
Solubility of in water	N/A
Density	4.5 g/cm3
Purity	99.50%
Particle size	0.8mm
Boling Point	N/A
Specific heat	N/A
Thermal Conductivity	N/A
Thermal Expansion	N/A
Young’s Modulus	N/A
Exact	173.856
Monoisotopic	173.856

The preparation for Mn2O3 Pulver
1. A-Mn2O3a can be prepared by further oxidation/reduction of manganese oxides or by heating divalent Manganese salts in air at 600-800degC. To heat manganese nuitrate hexahydrate, or pure b–MnO2, to a constant temperature at 650degC in the air is the easiest. Manganese nitrate-hexahydrate is used as the raw material. It must be heated to 190°C to create a solid substance. Pulverize it and then heat to 650°C.
2. Preparation of G-Mn2O3A 350mL solution in which 2.2g Manganese Sulfate Tetrahydrate was dissolved was stirred vigorously. Next, 34mL dropwise of 3% Hydrogen Peroxide Solution was added. Then 50mL was added of 0.2mol*dm-3 Ammonia Water to create g–MnO(OH). To make the suspension emitting oxygen darken or black, heat for 4 minutes. Then filter and separate the solid. For gMn2O3, the gMnO(OH) was meticulously dehydrated at 250°C for three consecutive days. You can also prepare g–MnO2 by heating it at 500 degrees Celsius for 78h under less pressure.
Use of Mn2O3 Pulver
1. Mn2O3 can be used for a variety of purposes and is suitable for use in the dyeing and printing of fabrics.
2. It can catalyze the oxidation organic pollutants and of nitrogen oxides.
3. It can be used as a precursor to soft magnetic material.
4. Used as a raw ingredient in the production of lithium ion battery electrode materials.
5. It is the primary and intermediate product of the manganese compound.
The main supplier for Mn2O3 powder
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