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 dioxide, Manganese(IV) oxide
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| Size/SKU | Availability | Price |
|---|---|---|
100 g | Check Cart for Availability | $55.60 |
1 kg | Check Cart for Availability | $114.00 |
About This Item
Linear Formula:
MnO2
CAS Number:
Molecular Weight:
86.94
UNSPSC Code:
12352303
EC Index Number:
215-202-6
NACRES:
NA.22
MDL number:
Grade:
synthesis grade
Form:
powder
Solubility:
insoluble <0.001 g/L
grade
synthesis grade
Quality Segment
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
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.
- Propargylic alcohols to alkynic aldehydes or ketones.
- Benzylic and heterocyclic alcohols to conjugated aromatic aldehydes or ketones.
- Amines to aldehydes, imines, amides, and diazo compounds. Methyl arenes to form primary amides in the presence of urea and oxygen.
- 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.
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
1 of 1
This Item | |||
|---|---|---|---|
| form powder | form powder | form powder | form - |
| solubility insoluble <0.001 g/L | solubility - | solubility insoluble <0.001 g/L | solubility - |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| grade synthesis grade | grade - | grade - | grade - |
| density 5.21 g/cm3 at 21 °C | density - | density 5.21 g/cm3 at 21 °C | density 7.4 g/cm3 at 19 °C |
| potency >3478 mg/kg LD50, oral (Rat) | potency - | potency >3478 mg/kg LD50, oral (Rat) | potency 9000 mg/kg LD50, oral (Rat) |
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signalword
Warning
Hazard Classifications
Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - STOT RE 2 Inhalation
target_organs
Brain
Storage Class
13 - Non Combustible Solids
flash_point_f
does not flash
flash_point_c
does not flash
hcodes
wgk
WGK 2
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What is precipated active for synthesis means for MnO2 if i have to used it for solid state synthesis
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