217646
Manganese(IV) oxide
activated, ~85%, <10 μm
Synonym(s):
Manganese dioxide
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About This Item
Linear Formula:
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
Quality Segment
assay
~85%
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
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.
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.
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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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