In the case of product 805958, "active" means that it was manufactured using a chemical process which ensures that it is active in the elimination of hydrogen.
8.05958
Manganese(IV) oxide
(precipitated active) for synthesis
Synonym(s):
Manganese(IV) oxide, Manganese dioxide, Pyrolusite
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About This Item
Empirical Formula (Hill Notation):
MnO2
CAS Number:
Molecular Weight:
86.94
MDL number:
UNSPSC Code:
12352303
EC Index Number:
215-202-6
NACRES:
NA.22
form:
powder
solubility:
insoluble <0.001 g/L
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Quality Level
form
powder
potency
>3478 mg/kg LD50, oral (Rat)
reaction suitability
reagent type: oxidant
solubility
insoluble <0.001 g/L
density
5.21 g/cm3 at 21 °C
bulk density
600‑800 kg/m3
storage temp.
2-30°C
SMILES string
[Mn](=O)=O
InChI
1S/Mn.2O
InChI key
NUJOXMJBOLGQSY-UHFFFAOYSA-N
Related Categories
Application
Manganese(IV) oxide (MnO2) can be used as an oxidizing agent for the oxidation of:
- Allylic alcohols to α, β-ethylenic aldehydes, or ketones.[1]
- Propargylic alcohols to alkynic aldehydes or ketones.[1]
- Benzylic and heterocyclic alcohols to conjugated aromatic aldehydes or ketones.[1]
- Amines to aldehydes, imines, amides, and diazo compounds.[1] Methyl arenes to form primary amides in the presence of urea and oxygen.[1]
- MnO2 can also be used to synthesize disubstituted oxazolines from aldoximes via in situ nitrile oxide formation. Non-activated cyclic and acyclic alcohols oxidized to ketone analogs using stoichiometric MnO2 and a ruthenium catalyst.[1]
Analysis Note
Assay (iodometric, calc. on dried substance): ≥ 90.0 %
Loss on drying: ≤ 3.5 %
Oxidation Activity: passes test
Loss on drying: ≤ 3.5 %
Oxidation Activity: passes test
Signal Word
Warning
Hazard Statements
Precautionary Statements
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 1
Flash Point(F)
does not flash
Flash Point(C)
does not flash
Certificates of Analysis (COA)
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Customers Also Viewed
Manganese dioxide
Cahiez Gerard, et al.
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)
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What is precipated active for synthesis means for MnO2 if i have to used it for solid state synthesis
1 answer-
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