Calcium permanganate
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| IUPAC name
Calcium oxido-trioxo-manganese[1]
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.030.280 
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PubChem CID
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| Properties | |
| Ca(MnO4)2 | |
| Molar mass | 277.9493 g/mol |
| Appearance | purple crystals deliquesent |
| Density | 2.49 g/cm3 |
| Melting point | 140 °C (284 °F; 413 K) (decomposes, tetrahydrate) |
| tetrahydrate: 331 g/100 mL (14 °C) 338 g/100 mL (25 °C) | |
| Solubility | soluble in ammonium hydroxide decomposes in alcohol |
| Related compounds | |
Other cations
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Sodium permanganate Ammonium permanganate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
 (what is   ?)
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| Infobox references | |
Calcium permanganate is an oxidizing agent and chemical compound with the chemical formula Ca(MnO4)2. This salt consists of the metal calcium and two permanganate ions.
Preparation[]
The salt is prepared from the reaction of potassium permanganate with calcium chloride[2] or from the reaction of with calcium oxide. It can also be prepared by reacting manganese dioxide with a solution of calcium hypochlorite and a little bit of calcium hydroxide to increase the pH level.[citation needed]
Uses[]
Calcium permanganate is used in the textile industry, for sterilization of water, and as a deodorizer.[2] It is believed to help whiten teeth.[3] It was formerly used as a component of rocket fuel by the Luftwaffe.[citation needed]
Safety[]
 | This section does not cite any sources. (August 2020) |
It is noncombustible, but being a strong oxidizing agent, it will accelerate the burning of combustible material. If the combustible material is finely divided, the resulting mixture may be explosive. Contact with liquid combustible materials may result in spontaneous ignition. Contact with sulfuric acid may cause fires or explosions. Mixtures with acetic acid or acetic anhydride can explode if not kept cold. Explosions can occur when mixtures of calcium permanganate and sulfuric acid come into contact with benzene, carbon disulfide, diethyl ether, ethyl alcohol, petroleum, or other organic matter.
See also[]
References[]
- ^ "CALCIUM PERMANGANATE, CAS Number: 10118-76-0".
- ^ Jump up to: a b Perry, Dale L. (2011). Handbook of Inorganic Compounds (2nd ed.). Boca Raton: Taylor & Francis. pp. 94–95. ISBN 978-1-4398-1461-1.
- ^ EP 1786352A1, "Permanganate containing whitening compositions and methods of their use", issued 2005-08-23
- Inorganic compound stubs
- Calcium compounds
- Permanganates
- Oxidizing agents