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| | dimanganese heptaoxide Basic information |
| Product Name: | dimanganese heptaoxide | | Synonyms: | dimanganese heptaoxide;Manganese(VII) oxide;manganese,oxygen(2-);manganese heptoxide;dimanganese heptaoxide ISO 9001：2015 REACH | | CAS: | 12057-92-0 | | MF: | H2MnO | | MW: | 72.95 | | EINECS: | 235-025-8 | | Product Categories: | | | Mol File: | 12057-92-0.mol |  |
| | dimanganese heptaoxide Chemical Properties |
| Melting point | 5.9°C | | Boiling point | decomposes at 55℃ [KIR81] | | density | 2.400 | | solubility | very soluble in H2O | | form | green oil | | color | green oil; explodes, explosive | | Water Solubility | very soluble H2O [KIR81] |
| RIDADR | 0473 | | HazardClass | 1.1A | | PackingGroup | II |
| | dimanganese heptaoxide Usage And Synthesis |
| Chemical Properties | Manganese(VII) oxide is obtained as an oil with a green metallic lustre in reflected light by the action of concentrated sulphuric acid on very pure potassium permanganate. The compound is extremely explosive and great care must be observed in the preparation and handling of this compound. The compound dissociates at about 55°C and detonates at 95°C. In a vacuum rapid and explosive decomposition occurs above 10°C. During explosive decomposition α-Mn2O3 results, but when dissociation is slow γ-MnO2 is formed. MnO7 is hygroscopic and in moist air it decomposes to Mn02 and a mixture of ozone and oxygen. The compound is stable below -10°C in anhydrous conditions. It reacts explosively with most organic compounds and attacks carbon tetrachloride even below room temperature. | | Chemical Properties | dark red oil; hygroscopic [KIR81] |
| | dimanganese heptaoxide Preparation Products And Raw materials |
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