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MANGANESE (III) OXIDE

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Products Intro: Product Name:MANGANESE (III) OXIDE
CAS:1317-34-6
Purity:85.0-99.8% Package:1KG;1USD
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CAS:1317-34-6
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CAS:1317-34-6
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CAS:1317-34-6
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MANGANESE (III) OXIDE manufacturers

  • Manganese(III) oxide
  • $0.01-1.00 / KG
  • 2020-05-28
  • CAS:1317-34-6
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 50 tons
  • MANGANESE (III) OXIDE
  • $1.00 / KG
  • 2019-09-02
  • CAS:1317-34-6
  • Min. Order: 1KG
  • Purity: 85.0-99.8%
  • Supply Ability: 200kg
MANGANESE (III) OXIDE Basic information
Product Name:MANGANESE (III) OXIDE
Synonyms:MANGANESE (III) OXIDE, 99.9%;Manganese(III)oxide,99%;Manganese(III) oxide, 99.999% metals basis;MANGANESE(III) OXIDE, -325 MESH, 99%;MANGANESE (III) OXIDE, MN>70+% 300 MESH (POWDER 99%);keto(ketomanganiooxy)manganese;oxo(oxomanganiooxy)manganese;Manganese(III) oxide 99.99% trace Metals basis
CAS:1317-34-6
MF:Mn2O3
MW:157.87
EINECS:215-264-4
Product Categories:Inorganics;metal oxide
Mol File:1317-34-6.mol
MANGANESE (III) OXIDE Structure
MANGANESE (III) OXIDE Chemical Properties
Melting point 1080°C (dec.)
density 4.5 g/mL at 25 °C(lit.)
form Powder
Specific Gravity4.5
color Black
Water Solubility Soluble in acid and ammonium chloride. Insoluble in water, alcohol and acetone.
Merck 14,5737
InChIKeyGEYXPJBPASPPLI-UHFFFAOYSA-N
CAS DataBase Reference1317-34-6(CAS DataBase Reference)
EPA Substance Registry SystemManganese(III) oxide (1317-34-6)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36
WGK Germany 3
RTECS OP0915000
TSCA Yes
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
MANGANESE (III) OXIDE Usage And Synthesis
Chemical Propertiesmanganese(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
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.
UsesManganese(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.
PreparationAnhydrous 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
DefinitionIn nature as manganite, a manganese ore.
HazardFlammable in finely divided form. Toxic by inhalation of dust.
Safety ProfileModerately toxic by subcutaneous and intratracheal routes. See also MANGANESE COMPOUNDS.
MANGANESE (III) OXIDE Preparation Products And Raw materials
Preparation ProductsManganese dioxide-->Trimanganese tetraoxide
Tag:MANGANESE (III) OXIDE(1317-34-6) Related Product Information
MANGANESE (II) OXIDE Molybdenum(IV) oxide NICKEL(II) HYDROXIDE Nickel(II) oxide BISMUTH OXYCHLORIDE Boron oxide Lead dioxide Manganese sulfate Trimanganese tetraoxide COBALT(III) OXIDE BLACK Bismuth trioxide Yttrium oxide Diantimony trioxide Phosphorus trioxide COPPER CHROMITE Iron oxide INDIUM TIN OXIDE Praseodymium oxide