The Applications of Mn2O3 Powder

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. It can be dissolved in cold chloric acid to make a brown solution or in hot dilute sulfuric and concentrated sulfuric acids to make a red solution. Once heated, it will decompose into MnO2 & manganese Nitrate, and then decomposed to Mn3O4, which is released as O2. It is available in two forms: a-Mn2O3 (or g-Mn2O3). The a-type can only be made by decomposing nitrate carbonate or chloride of divalent Manganese in air at 600800. The g type is made by heating MnO2 in vacuum at 50 for 78 hours. 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 characteristics of Mn2O3 Pulver

Manganese Trioxide is a black cubic crystalline, insoluble and insoluble in water and acetic acids. However, it can be soluble or inorganic acids. When heated to 1080, it becomes Mn3O4 or O2. It can be dissolved in cold water chloric acid to a brown solution or in hot dilute sulfuric and concentrated sulfuric acids to a red solution. When heated, it will decompose into Mn3O4 (and O2) and manganese-nitrate in hot acid. It comes in two forms: a–Mn2O3 (g-Mn2O3) and 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


Combination Formula

Molecular Weight

Black Solid

Melting Point
940 degC (1724 degF)

Solubility of in water

4.5 g/cm3


Particle size

Boling Point

Specific heat

Thermal Conductivity

Thermal Expansion

Young’s Modulus

Exact Mass


Manganese Oxide Mn2O3 CAS 1317-34-6

The preparation for Mn2O3 Pulver

1. A-Mn2O3a can be prepared by further oxidation/reduction of manganese oxides or 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. Pulverized material can then be heated to 650°C.

2. Preparation of G-Mn2O3In 350mL, 2.2g manganese sulfate trihydrate was dissolved. After vigorous stirring, 34mL 3% hydrogen peroxide was added dropwise. 50mL 0.2mol*dm-3 wasmonia water was then added to make 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 250C for 3 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 principal supplier of Mn2O3 Pulver

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