Silver permanganate
Silver permanganate is an inorganic compound with the chemical formula AgMnO4. This salt is a purple crystal adopting monoclinic crystal system.[1] It decomposes when heated or mixed with water, and heating to high temperature may lead to explosion. The compound is used in gas masks.
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| Names | |
|---|---|
| IUPAC name
Silver(I) permanganate | |
| Systematic IUPAC name
Silver(I) manganate(VII) | |
| Other names
Argentous permanganate | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.029.127  |
| EC Number |
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PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| AgMnO4 | |
| Molar mass | 226.804 g/mol |
| Appearance | purple crystals or gray powder |
| Density | 4.27 g/cm3 |
| Melting point | 160 °C (320 °F; 433 K) (decomposes) |
| 0.55 g/100 mL (0 °C) 1.69 g/100 mL (30 °C) | |
| −63.0·10−6 cm3/mol | |
| Structure | |
| monoclinic | |
| Hazards | |
| Main hazards | Eye irritant |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Production
It can be produced through the reaction of silver nitrate and potassium permanganate:[2]
- AgNO
3 + KMnO
4 → AgMnO
4 + KNO
3
References
- Boonstra, E. G. (14 August 1968). "The crystal structure of silver permanganate". Acta Crystallographica Section B. 24 (8): 1053–1062. doi:10.1107/S0567740868003699.
- Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
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