MANGANESE (III) OXIDE
- Product Name
- MANGANESE (III) OXIDE
- CAS No.
- 1317-34-6
- Chemical Name
- MANGANESE (III) OXIDE
- Synonyms
- manganicoxide;manganesetrioxide;manganese(3+)oxide;manganesemanganate;dimanganesetrioxide;manganesesisquioxide;MANGANESE SESQUIOXIDE;MANGANESE (III) OXIDE;manganeseoxide(mn2o3);Manganese(III)oxide,99%
- CBNumber
- CB3275540
- Molecular Formula
- Mn2O3
- Formula Weight
- 157.87
- MOL File
- 1317-34-6.mol
MANGANESE (III) OXIDE Property
- Melting point:
- 1080°C (dec.)
- Density
- 4.5 g/mL at 25 °C(lit.)
- form
- Powder
- color
- Black
- Specific Gravity
- 4.5
- Water Solubility
- Soluble in acid and ammonium chloride. Insoluble in water, alcohol and acetone.
- Merck
- 14,5737
- InChIKey
- GEYXPJBPASPPLI-UHFFFAOYSA-N
- CAS DataBase Reference
- 1317-34-6(CAS DataBase Reference)
- EPA Substance Registry System
- Manganese(III) oxide (1317-34-6)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- 377457
- Product name
- Manganese(III) oxide
- Purity
- 325 mesh, 99%
- Packaging
- 250g
- Price
- $123
- Updated
- 2021/12/16
- Product number
- 377457
- Product name
- Manganese(III) oxide
- Purity
- 325 mesh, 99%
- Packaging
- 1kg
- Price
- $383
- Updated
- 2021/12/16
- Product number
- 463701
- Product name
- Manganese(III) oxide
- Purity
- 99.9% trace metals basis
- Packaging
- 5g
- Price
- $102
- Updated
- 2021/03/22
- Product number
- 463701
- Product name
- Manganese(III) oxide
- Purity
- 99.9% trace metals basis
- Packaging
- 25g
- Price
- $361
- Updated
- 2021/03/22
- Product number
- 087791
- Product name
- Manganese(III) oxide, 98%
- Packaging
- 2kg
- Price
- $506
- Updated
- 2021/12/16
MANGANESE (III) OXIDE Chemical Properties,Usage,Production
Chemical Properties
manganese(III) oxide is a black, lustrous powder, sometimes tinged brown. Very hard.decomposes at 1080℃. Soluble in cold hydrochloric acid; not soluble in nitric acid (decomposes), hot sulfuric acid; insoluble in water. Noncombustible.
manganese(III) oxide is obtained by igniting manganese(IV) oxide or a manganese(II) salt in air at 800°C. It reacts slowly with cold dilute acids to form manganese(III) salts. Manganese(III) oxide occurs in nature as braunite (3Mn2O3.MnSiO3 ) and the monohydrate (Mn2O 3.H2O) occurs in the mineral manganite. The manganese(III) oxide crystal lattice contains Mn3+ and O2– ions. With concentrated alkalis, it undergoes disproportionation to give manganese(II) and manganese(IV) ions.
Uses
Manganese(III) oxide is used to produce ceramic magnets and semiconductors. Further, it serves as a precursor to lithium manganese oxide. In addition to this, it acts as a useful battery cathode.
Preparation
Anhydrous manganese(III) oxide is found as the mineral braunite, Mn2O3, while a hydrated form, Mn2O3.H2O, which is chemically more reactive, occurs as manganite. Manganese forms both anions and cations in oxidation state +3. Simple salts of tervalent manganese are not stable. However, complexes are more stable, the hexacyanomanganates(III) being an example: K3Mn(CN)6 is a red crystalline solid, isomorphous with potassium hexacyanoferrate(III) and slowly hydrolysed.
Manganese(III) oxide is formed as a grey solid by heating manganese(IV) oxide to 700°C for several hours:
4MnO2 ---> 2Mn203 + O2
It is converted into trimanganese tetroxide when heated above 940°C in air or reduced by hydrogen above 230°C. Hot concentrated hydrochloric acid is oxidized to chlorine by manganese(III) oxide:
Mn203 (s) + 6H + + 2e- ==2Mn2+ + 3H2O
Mn203 (s) + 6H + + 2Cl- ---> 2Mn2+ + 3H2O + Cl2
Definition
In nature as manganite, a manganese ore.
Hazard
Flammable in finely divided form. Toxic by inhalation of dust.
Safety Profile
Moderately toxic by subcutaneous and intratracheal routes. See also MANGANESE COMPOUNDS.
MANGANESE (III) OXIDE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from MANGANESE (III) OXIDE manufacturers
- Product
- Manganese(III) oxide 1317-34-6
- Price
- US $0.01-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50 tons
- Release date
- 2020-05-27
- Product
- MANGANESE (III) OXIDE 1317-34-6
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 85.0-99.8%
- Supply Ability
- 200kg
- Release date
- 2019-08-30