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| Names | |
|---|---|
| IUPAC name
Permanganic acid
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| Other names
Manganic(VII) acid
Hydroxy(trioxo)manganese Hydrogen permanganate | |
| Identifiers | |
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.033.346 |
| EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| HMnO4 | |
| Molar mass | 119.94 g mol−1 |
| Appearance | Violet |
| Acidity (pKa) | about -4.6 to -2.3 [1][2] |
| Conjugate base | Permanganate |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Oxidant, Corrosive |
| Related compounds | |
Other cations
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Potassium permanganate Sodium permanganate Calcium permanganate |
Related compounds
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Pertechnetic acid Perrhenic acid Perchloric acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Permanganic acid (or manganic(VII) acid) is the inorganic compound with the formula HMnO4. This strong oxoacid has been isolated as its dihydrate. It is the conjugate acid of permanganate salts. It is the subject of few publications and its characterization as well as its uses are very limited.
- ^ Stewart, R.; Mocek, M.M. (1963). "The Mechanisms of Permanganate Oxidation VII: The Oxidation of Fluoral Hydrate". Canadian Journal of Chemistry. 41 (5): 1160–9. doi:10.1139/v63-164.
- ^ Bailey, N.; Carrington, A.; Lott, K.A.K.; Symons, M.C.R (1960). "Structure and Reactivity of the Oxyanions of Transition Metals Part VII: Acidities and Spectra of Protonated Oxyanions". Journal of the Chemical Society (Resumed): 290–7. doi:10.1039/JR9600000290.