Description
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.
Potassium Manganate (Potassium Managanese Oxide) (K2MnO4)-Powder
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
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