POTASSIUM MANGANATE[K2MnO4]

·         CAS Number 10294-64-1

·         Empirical Formula (Hill Notation) K₂MnO₄

·         Molecular Weight 197.13

·          EC Number 233-665-2

·          MDL number MFCD00043089

·          PubChem Substance ID 24853025

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.

Detailed description

Occasionally, potassium manganate and potassium permanganate are confused, but they are different compounds with distinctly different properties.

Structure

K₂MnO₄ is a salt, consisting of K⁺ cations and MnO₄²⁻ anions. X-ray crystallography shows that the anion is tetrahedral, with Mn-O distances of 1.66 Å, ca. 0.03 Å longer than the Mn-O distances in KMnO₄.^[1] It is isostructural with potassium sulfate.

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