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
- Molecular Weight:
- 157.87
- MOL File:
- 1317-34-6.mol
- MSDS File:
- SDS
- Modify Date:
- 2025/1/27 9:38:02
| Melting point | 1080°C (dec.) |
|---|---|
| bulk density | 0.35g/cm3 |
| 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 and acetone. |
| 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) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | OP0915000 | |||||||||
| TSCA | Yes | |||||||||
| Toxicity | mouse,LD50,subcutaneous,616mg/kg (616mg/kg),Zhurnal Vsesoyuznogo Khimicheskogo Obshchestva im. D.I. Mendeleeva. Journal of the D.I. Mendeleeva All-Union Chemical Society. Vol. 19, Pg. 186, 1974. | |||||||||
| NFPA 704 |
|
MANGANESE (III) OXIDE price More Price(11)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 463701 | Manganese(III) oxide 99.9% trace metals basis | 1317-34-6 | 5G | ₹13076.6 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 463701 | Manganese(III) oxide 99.9% trace metals basis | 1317-34-6 | 25G | ₹26748.58 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 377457 | Manganese(III) oxide ?325?mesh, 99% | 1317-34-6 | 250G | ₹15490.58 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 377457 | Manganese(III) oxide ?325?mesh, 99% | 1317-34-6 | 1KG | ₹28902.75 | 2022-06-14 | Buy |
| ALFA India | ALF-087791-A3 | Manganese(III) oxide, 98% | 1317-34-6 | 2kg | ₹58912 | 2022-05-26 | Buy |
MANGANESE (III) OXIDE Chemical Properties,Uses,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
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Satyam Pharma Chem Pvt Ltd | +91-2266339900 +91-2266339900 | Maharashtra, India | 48 | 58 | Inquiry |
| Astrra Chemicals | 91-44-28273947 | Tamil Nadu, India | 32 | 58 | Inquiry |
| Clearsynth Labs | 91-22-45045900 | Maharashtra, India | 3887 | 58 | Inquiry |
| Aritech Chemazone Private Limited | +91-9034345475 | Punjab, India | 684 | 58 | Inquiry |
| Triveni chemicals | 08048762458 | New Delhi, India | 6088 | 58 | Inquiry |
| Intelligent Materials Private Limited | 08048953178 | Punjab, India | 196 | 58 | Inquiry |
| Sisco Research Laboratories Pvt. Ltd. | +91-22-4268 5800 | Mumbai, India | 4315 | 58 | Inquiry |
| S.K. CHEMICAL INDUSTRIES | +91-22-66370299 Ext 21 / 91-22-23437380 Ext 25 | New Delhi, India | 261 | 30 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5870 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6905 | 58 | Inquiry |
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