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| CAS No.: | 14333-13-2 |
|---|---|
| Name: | oxido-trioxo-manganese |
| Article Data: | 148 |
| Molecular Structure: | |
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| Formula: | MnO4 |
| Molecular Weight: | 118.936 |
| Synonyms: | Permanganate;Permanganate (MnO4-) ion; Permanganate anion; Permanganate ion; Permanganateion(1-); Permanganate(1-); Permanganic acid (HMnO4), ion(1-) |
| Density: | g/cm3 |
| Boiling Point: | °Cat760mmHg |
| Flash Point: | °C |
| PSA: | 50.75000 |
| LogP: | -0.36970 |
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Chemistry
Synonyms: Oxido-trioxo-manganese ; Permanganate
Molecular Formula: MnO4
Following is the structure of Permanganate (CAS NO.14333-13-2) :
Solubility: Soluble in water
Molecular Weight: 118.9362 g/mol
Appearance: Generally purplish colored
Canonical SMILES: [O-][Mn](=O)(=O)=O
Production
Permanganates may be produced by oxidation of manganese compounds by strong oxidizing agents, for instance, sodium hypochlorite or lead dioxide.
2 MnCl2 + 5 NaClO + 6 NaOH → 2 NaMnO4 + 9 NaCl+ 3 H2O
2 MnSO4 + 5 PbO2+ 3 H2SO4 → 2 HMnO4+ 5 PbSO4 + 2 H2O
Or by dismutation of manganates:
3 Na2MnO4 + 2 H2O → 2 NaMnO4 + MnO2 + 4 NaOH
Safety Profile
Permanganate (CAS NO.14333-13-2 ) will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. It may explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). And it may ignite combustibles (wood, paper, oil, clothing, etc.). The containers may explode when heated. If it runoff, it may create fire or explosion hazard.
Specification
A permanganate is the general name for a chemical compound containing the manganate(VII) ion, (MnO4−). Because manganese is in the +7 oxidation state, the manganate(VII) ion is a strong oxidizing agent. The ion has a tetrahedral geometry Permanganate solutions are purple in color and are stable in neutral or slightly alkaline media.
In an acidic solution, manganate(VII) is reduced to the colourless +2 oxidation state of the manganese(II) (Mn2+) ion.
8 H3O + + MnO4− + 5 e− → Mn2+ + 12 H2O
In a strongly basic solution, manganate(VII) is either reduced to the brown +4 oxidation state of manganese dioxide MnO2 or to the green +6 oxidation state of the manganate MnO42−.
2 H2O + MnO4− + 3 e− → MnO2 + 4 OH−
MnO4− + e− → MnO42−