Activated manganese dioxide is prepared by chemical treatment of natural ore (roasting, sulfuric acid treatment). The activation process, as well as the whole production process, is proprietary. There is no data characterizing the MnO2 phase of the product.
217646
Manganese(IV) oxide
activated, ~85%, <10 μm
Synonym(s):
Manganese dioxide
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About This Item
Empirical Formula (Hill Notation):
MnO2
CAS Number:
Molecular Weight:
86.94
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
215-202-6
MDL number:
Assay:
~85%
Form:
powder
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Product Name
Manganese(IV) oxide, activated, ~85%, <10 μm
InChI key
NUJOXMJBOLGQSY-UHFFFAOYSA-N
InChI
1S/Mn.2O
SMILES string
O=[Mn]=O
assay
~85%
form
powder
particle size
<10 μm
mp
535 °C (dec.) (lit.)
Quality Level
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This Item | 310700 | 243442 | 918040 |
|---|---|---|---|
| form powder | form powder | form crystalline powder, granular | form liquid |
| assay ~85% | assay ≥90% | assay ≥99% | assay - |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| mp 535 °C (dec.) (lit.) | mp 535 °C (dec.) (lit.) | mp 535 °C (dec.) (lit.) | mp - |
| particle size <10 μm | particle size 10 μm | particle size - | particle size - |
Application
Manganese (IV) oxide can be used as selective oxidizing agent:
- In conversion of allylic alcohols to α, β-ethylenic esters or amides.
- In oxidation of allylic alcohols to α,β-ethylenic aldehydes or ketones.
- In oxidation of propargylic alcohols, saturated alcohols and benzylic or heterocyclic alcohols.
- Manganese (IV) oxide can also be used:,In hydration of nitriles to amides.
General description
Manganese (IV) oxide is a low cost, low toxic and easy handling inorganic compound widely used as a mild oxidant in organic chemistry. It is mainly used for the selective oxidation of activated alcohols to form α, β-unsaturated aldehydes and ketones.
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - STOT RE 2 Inhalation
target_organs
Brain
Storage Class
13 - Non Combustible Solids
wgk
WGK 2
flash_point_f
does not flash
flash_point_c
does not flash
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Ross W Hogue et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(57), 14193-14199 (2017-06-09)
Self-assembly of 1:1:2 M
Water dispersible conducting nanocomposites of poly (N-vinylcarbazole), polypyrrole and polyaniline with nanodimensional manganese (IV) oxide.
Biswas M, et al.
Synthetic Metals, 105(2), 99-105 (1999)
Liling Jing et al.
Scientific reports, 10(1), 14937-14937 (2020-09-12)
Silver nanoparticles (Ag NPs) system capable of exhibiting different particle size at different temperature was developed, which depended on the extent of Diels-Alder (DA) reaction of bismaleimide with furan. Thus, Ag NPs were functionalized on the surface by a furyl-substituted
Mohammad Mahdi Najafpour
Dalton transactions (Cambridge, England : 2003), 40(15), 3805-3807 (2011-03-02)
A soluble form of colloidal manganese(IV) oxide showed efficient oxygen evolution or water oxidation in presence of oxone, H(2)O(2), cerium(IV) ammonium nitrate and tris(2,2'-bipyridyl)ruthenium(III).
Synthesis, characterization, and supercapacitor studies of manganese (IV) oxide nanowires.
Yousefi T, et al.
Materials Science in Semiconductor Processing, 16(3), 868-876 (2013)
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What does "activated" mean in the product description, and which phase of MnO₂ does this material correspond to?
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