Silver permanganate
Names
IUPAC name
Silver(I) permanganate
Systematic IUPAC name
Silver(I) manganate(VII)
Other names
Argentous permanganate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.127 Edit this at Wikidata
EC Number
  • 232-040-1
UNII
  • InChI=1S/Ag.Mn.4O/q+1;;;;;-1
    Key: FBDQITNNUANGAD-UHFFFAOYSA-N
  • InChI=1/Ag.Mn.4O/q+1;;;;;-1/rAg.MnO4/c;2-1(3,4)5/q+1;-1
    Key: FBDQITNNUANGAD-URBVJNAFAD
  • [Ag+].[O-][Mn](=O)(=O)=O
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
Occupational safety and health (OHS/OSH):
Main hazards
 Eye irritant
GHS labelling:
GHS03: Oxidizing GHS07: Exclamation mark
Warning
H272, H312, H319, H332
P210, P220, P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P311, P321, P330, P337+P313, P362+P364, P370+P378, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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. The compound is used in gas masks.[citation needed]

Production

It can be produced through the reaction of silver nitrate and potassium permanganate:[2]

AgNO3 + KMnO4 → AgMnO4 + KNO3

References

  1. ^ Boonstra, E. G. (14 August 1968). "The crystal structure of silver permanganate". Acta Crystallographica Section B. 24 (8): 1053–1062. Bibcode:1968AcCrB..24.1053B. doi:10.1107/S0567740868003699.
  2. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.


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