Activated High pure Manganese Trioxide - Product Profile
Product Name: Manganese Trioxide; Manganese Sesquioxide
Grade: Electronic Industry
Model: JD-MTHP-99
molecular formula: Mn2O3
CAS No.: 1317-34-6
MANGANESE (III) OXIDE Chemical Properties
Melting point 1080°C (dec.)
density 4.5 g/mL at 25 °C(lit.)
solubility insoluble in H2O
form Powder
color Black
Specific Gravity 4.5
Water Solubility Soluble in acid and ammonium chloride. Insoluble in water, alcohol .
Merck 14,5737
Exposure limits ACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3
OSHA: Ceiling 5 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3
InChIKey GEYXPJBPASPPLI-UHFFFAOYSA-N
CAS DataBase Reference 1317-34-6(CAS DataBase Reference)
EPA Substance Registry System Manganese(III) oxide (1317-34-6)
Technical specifications:
Items QB9801-3
(Mn2O3) % ≥ 98
(Ca)% ≤ 0.002
(Fe)% ≤ 0.0015
(Cu)% ≤ 0.002
(Ni)% ≤ 0.001
(Na)% ≤ 0.35
(Pb)% ≤ 0.0004
(Co)% ≤ 0.0001
(K)% ≤ 0.15
Size 2.5 um
Application :
Mainly used as Electronic components, bleaching agent, catalyst, voltage sensitive material , etc.
Precautions for storage and transportation: store in a dry and ventilated warehouse. Pay attention to moisture, and do not store and transport with acids and oxidants. In case of fire, water, sand and fire extinguisher can be used to put out the fire.
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
1) Are you manufacture or trade?
We are manufacturer, our factory is located in Hunan province ,China but we can also provide other manganese series and Ferric series and purchasing service for you!
MSDS and SDS please contact with us by Jenny@hnjd-tech.com
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