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
Sign In to View Organizational & Contract Pricing
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
Grade:
synthesis grade
Form:
powder
Solubility:
insoluble <0.001 g/L
Skip To
grade
synthesis grade
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
Looking for similar products? Visit Product Comparison Guide
Related Categories
1 of 4
This Item | 310700 | 1.05957 | 1.12237 |
|---|---|---|---|
| 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 200 | Quality Level 200 | Quality Level 200 |
| 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) |
| reaction suitability reagent type: oxidant | reaction suitability - | reaction suitability - | reaction suitability - |
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
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_germany
WGK 1
flash_point_f
does not flash
flash_point_c
does not flash
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Manganese dioxide
Cahiez Gerard, et al.
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)
-
What is precipated active for synthesis means for MnO2 if i have to used it for solid state synthesis
1 answer-
Helpful?
-
Active Filters
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service