Potassium manganate

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Potassium manganate
aka potassium (VI) manganate
Chemical formula K2MnO4
OTP appearance dark green crystals 
Molar Mass(g/mol) 197.132 
Density(g/cc) 2.78 
Melting Point(°C) 190(decomp) 
Solubility in water(g/L) decomp
NFPA 704
NFPA704.png
0
1
1
OX

Uses

Other

Natural occurrence

Does not occur naturally

Hazards

Character

Production

Synthesis

  1. roast a mixture of potassium hydroxide and manganese dioxide in air giving potassium manganate
    2 MnO2 + 4 KOH + O2 → 2 K2MnO4 + 2 H2O

Testing

Purification

Storage

Disposal

See Also

References

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