Characteristic
Potassium manganate is the inorganic compound with the formula K2MnO4. This green-colored salt is an intermediate in the industrial synthesis of potassium permanganate (KMnO4), a common chemical.
Chemical formula：K2MnO4
Molar mass：197.132 g/mol
Appearance：green crystals (darkening with time)
Density：2.78 g/cm3, solid
Melting point：190 °C (374 °F; 463 K) (decomposition)
Solubility in water：decomposes
Acidity (pKa)：7.1
Crystal structure：isomorphous with K2SO4
.jpg "Potassium Manganate (Potassium Managanese Oxide) (K2MnO4)-Powder")
.jpg "Lutetium(III) acetate hydrate (Lu(OOCCH3)3•xH2O (x≈4))-Crystalline")
.jpg "Ultrafine Copper Metal (Cu)-Powder")
.jpg "Silver Fluoride (II) (AgF2)-Crystalline")
.jpg "Ammonium fluoride (NH4F)-Crystals")
.jpg "Ytterbium(III) Oxalate Decahydrate (Yb2(C2O4)3•10H2O)-Crystalline")
.jpg "Lithium acetate hydrate (CH3COOLi·xH2O )-Crystalline")
