Chemistry:Silver permanganate
From HandWiki
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| Names | |
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| IUPAC name
Silver(I) permanganate
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| Systematic IUPAC name
Silver(I) manganate(VII) | |
| Other names
Argentous permanganate
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| Identifiers | |
3D model (JSmol)
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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 |
| GHS pictograms |  
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| GHS Signal word | Warning |
| H272, H312, H319, H332 | |
| P210, P220, P261, P264, P270, P271, P280, P301+310, P302+352, P304+340, P305+351+338, P311, P321, P330, P337+313, P362+364Script error: No such module "Preview warning".Category:GHS errors, P370+378, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Tracking categories (test):
Silver permanganate is an inorganic compound with the chemical formula AgMnO4. This salt is a purple crystal adopting a monoclinic crystal system.[1] It decomposes when heated or mixed with water, and heating to high temperature may lead to explosion.
Production
It can be produced through the reaction of silver nitrate and potassium permanganate:[2]
- AgNO
3 + KMnO
4 → AgMnO
4 + KNO
3
Uses
Silver permanganate is an oxidizing agent for carbon monoxide when deposited on metallic oxide carriers.[3] As a result, it was investigated for use in gas masks but was ultimately abandoned due to its expense and it being consumed in the reaction rather than acting as a catalyst.[4]
Related compounds
A caesium silver permanganate with the formula Cs3Ag[MnO4]4 has been characterized.[5]
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. Bibcode: 1968AcCrB..24.1053B.
- ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
- ↑ "The Heterogeneous Oxidation of Carbon Monoxide" (in en-US), Advances in Catalysis (Academic Press) 5: p. 191, 1953-01-01, doi:10.1016/S0360-0564(08)60642-2, https://www.sciencedirect.com/science/chapter/bookseries/abs/pii/S0360056408606422, retrieved 2026-02-26
- ↑ Lamb, Arthur B.; Bray, William C.; Frazer, J. C. W. (1920-03-01). "The Removal of Carbon Monoxide from Air.". Journal of Industrial & Engineering Chemistry 12 (3): 217. doi:10.1021/ie50123a007. ISSN 0095-9014.
- ↑ Bauchert, Jörg M.; Henning, Harald; Schleid, Thomas (September 2012). "Synthesis and Crystal Structure of the Cesium Silver Permanganate Cs 3 Ag[MnO 4 4"] (in de). Zeitschrift für anorganische und allgemeine Chemie 638 (11): 1780–1783. doi:10.1002/zaac.201200250. ISSN 0044-2313. https://onlinelibrary.wiley.com/doi/10.1002/zaac.201200250.
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