Manganese(IV) oxide

Molecular formula:
Chemical compound:
manganese(IV) dioxide
Common name:

MnO2 – manganese(IV) oxide – is a dark brown powder, insoluble in water. It is the most stable compound of manganese, and is widespread in the earth's crust as a mineral known as pyrolusite. Manganese(IV) oxide is primarily utilized as a component of dry cell batteries and zinc–carbon batteries, where it is mixed with graphite to make cathodes. It is also used as an inorganic pigment in ceramics and glassmaking.

Similar reagents

Experiments with similar reagents

Hazard information

Hazard statements

  • Harmful if swallowed.
  • Harmful if inhaled.
  • May cause damage to organs (Brain) through prolonged or repeated exposure if inhaled.

Precautionary statements

  • Do not breathe dust/fume/gas/mist/vapours/spray.
  • IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell.
  • Do not eat, drink or smoke when using this product.
  • Wash skin thoroughly after handling.
  • Dispose of contents/container in accordance with local regulations.
  • Get medical advice/attention if you feel unwell.