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Product
Specification
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| Properties |
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Molecular formula |
KMnO4 |
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Molar mass |
158.04 g/mol |
| Appearance |
purplish-bronze-gray needles or
magenta–rose in solution |
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Density |
2.703 g/cm³, solid |
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Melting point |
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| Structure |
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Molecular shape |
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Dipole moment |
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| Hazards |
| Main
hazards |
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NFPA 704 |
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Risks |
Contact with combustible material may cause fire, Harmful if swallowed, Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
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Safety |
Keep out of the reach of children, This material and its container must be disposed of as hazardous waste, Avoid release to the environment. |
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Flash point |
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Autoignition
temperature |
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| Related compounds |
| Other
anions |
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| Other
cautions |
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| Related |
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| Related compounds |
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Description |
| Potassium permanganate is the chemical compound KMnO4. In this salt, manganese is in the +7 oxidation state. The salt is also known as "permanganate of potash." The permanganate ion is a strong oxidizing agent. It dissolves in water to give deep purple solutions, evaporation of which gives prismatic purplish-black glistening crystals.[ |
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Uses |
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SAFETY |
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Solid KMnO4 is a strong oxidizer and in general it should be kept separated from oxidizable substances. Reaction with concentrated sulfuric acid produces the highly explosive manganese(VII) oxide (Mn2O7). As an oxidizer, potassium permanganate stains the hand and clothing as it is reduced to brown MnO2. It is also used as antidote for some poisons, on which it acts by oxidizing them.
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International Chemical Safety Card
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