217646

Manganese(IV) oxide

activated, ~85%, <10 μm

• Synonym(s): Manganese dioxide
• Empirical Formula (Hill Notation): MnO₂
• CAS Number: 1313-13-9
• Molecular Weight: 86.94
• EC Number: 215-202-6
• MDL number: MFCD00003463
• UNSPSC Code: 12352302
• PubChem Substance ID: 329752205
• NACRES: NA.21

Properties

• 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

Description

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.

Safety Information

• Pictograms: GHS08,GHS07
• Signal Word: Warning
• Hazard Statements: H302 + H332,H373
• Precautionary Statements: P260 - P264 - P271 - P301 + P312 - P304 + P340 + P312 - P314
• 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 2
• Flash Point(F): does not flash
• Flash Point(C): does not flash