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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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.

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