Potassium hypomanganate

Potassium hypomanganate
Names
IUPAC names
potassium manganate(V)
potassium tetraoxidomanganate(3−)
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/3K.Mn.4O/q3*+1;-3;;;;
    Key: BABZALCEXXHDEO-UHFFFAOYSA-N
  • O=[Mn-3](=O)(=O)=O.[K+].[K+].[K+]
Properties[1]
K3MnO4
Molar mass 236.229 g·mol−1
Appearance bright blue solid
Density 2.78 g/cm3
Melting point 900 °C (1,650 °F; 1,170 K) (decomposes)
UV-vis (λmax) 670 nm
(ε = 900 dm3 mol−1 cm−1)
Related compounds
Other anions
 Potassium manganate
Potassium permanganate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Potassium hypomanganate is the inorganic compound with the formula K3MnO4. Also known as potassium manganate(V), this bright blue solid is a rare example of a salt with the hypomanganate or manganate(V) anion, where the manganese atom is in the +5 oxidation state. It is an intermediate in the production of potassium permanganate and the industrially most important Mn(V) compound.[2]

  1. ^ Lee, Donald G.; Chen, Tao (1993), "Reduction of manganate(VI) by mandelic acid and its significance for development of a general mechanism of oxidation of organic compounds by high-valent transition metal oxides", J. Am. Chem. Soc., 115 (24): 11231–36, doi:10.1021/ja00077a023.
  2. ^ Kenneth Pisarczyk (2005). "Manganese Compounds". Kirk-Othmer Encyclopedia of Chemical Technology. doi:10.1002/0471238961.1301140716091901.a01.pub2.