Silver permanganate

Silver permanganate
Names
	IUPAC name Silver(1+) oxido(trioxo)manganese
Identifiers
CAS Number	7783-98-4;
3D model (JSmol)	Interactive image;
ChemSpider	9599554;
ECHA InfoCard	100.029.127
EC Number	232-040-1
PubChem CID	11424678;
	InChI 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;
	SMILES [Ag+].[O-][Mn](=O)(=O)=O;
Properties
Chemical formula	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)
Solubility in water	0.55 g/100 mL (0 °C) ; 1.69 g/100 mL (30 °C)
Magnetic susceptibility (χ)	−63.0·10−6 cm3/mol
Structure
Crystal 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

Silver permanganate is an inorganic compound with the chemical formula AgMnO₄. It 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.

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 0-08-037941-9.

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[1] Boonstra, E. G. (14 August 1968). "The crystal structure of silver permanganate". Acta Crystallographica Section B. 24 (8): 1053–1062. doi:10.1107/S0567740868003699.

[2] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 0-08-037941-9.