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310700

Sigma-Aldrich

Manganese(IV) oxide

10 μm, reagent grade, ≥90%

Synonym(s):

Manganese dioxide

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About This Item

Empirical Formula (Hill Notation):
MnO2
CAS Number:
1313-13-9
Molecular Weight:
86.94
EC Number:
215-202-6
MDL number:
MFCD00003463
UNSPSC Code:
12352303
PubChem Substance ID:
329753639
NACRES:
NA.55

grade

reagent grade

Assay

≥90%

form

powder

particle size

10 μm

mp

535 °C (dec.) (lit.)

SMILES string

O=[Mn]=O

InChI

1S/Mn.2O

InChI key

NUJOXMJBOLGQSY-UHFFFAOYSA-N

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General description

Manganese(IV) oxide is an oxidizing reagent that can be used for the oxidation of propargylic alcohols, benzylic or heterocyclic alcohols, saturated alcohols, 1,2-diols, allylic alcohols to α, β-ethylenic aldehydes or ketones, and amines to aldehydes, imines, amides, and diazo compounds. It can also be used for the conversion of allylic alcohols to α, β-ethylenic esters or amides, hydration of nitriles to amides, dehydrogenation and aromatization reactions.

Application


  • High-oxidation-state 3d metal complexes: Explores the catalytic properties of manganese(IV) oxide within high-oxidation-state complexes for advanced organic synthesis, demonstrating its critical role in accelerating chemical reactions and enhancing yield efficiencies, beneficial for pharmaceutical and chemical industries (Cheng J et al., 2018).


  • Synthesis and properties of manganese complexes: Details the synthesis of new manganese complexes that demonstrate unique redox properties, useful for understanding electron transfer processes in various chemical and environmental contexts (Baffert C et al., 2002).


Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Statements

H302 + H332,H373

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - STOT RE 2 Inhalation

Target Organs

Brain

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

Flash Point(F)

does not flash

Flash Point(C)

does not flash

Certificates of Analysis (COA)

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Manganese dioxide
Cahiez G, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis (2001)
Xing Liu et al.
The Analyst, 137(19), 4552-4558 (2012-08-18)
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Abhinav M Gaikwad et al.
Advanced materials (Deerfield Beach, Fla.), 24(37), 5071-5076 (2012-07-05)
Y Wang et al.
Journal of colloid and interface science, 380(1), 8-15 (2012-06-02)
Bio-inspired chemical approach has been developed for the surface modification and electrophoretic deposition of manganese dioxide and zirconia nanoparticles, prepared by chemical precipitation methods. Caffeic acid, trans-cinnamic acid, p-coumaric acid, and 2,4-dihydroxycinnamic acid were investigated for the surface modification of
Wen-Hui Kuan et al.
Journal of hazardous materials, 239-240, 152-159 (2012-09-25)
This study examined the reaction of methylene blue (MB) with tunneled manganese oxide pyrolusite regarding pH and reaction time. MB was cleaved through N-demethylation, in which reaction azure B (AB), azure A (AA), azure C (AC), and thionin (TH) were
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