Quick facts for kidsManganese dioxide
|IUPAC name||Manganese oxide
|Other names||Pyrolusite, hyperoxide of manganese, black oxide of manganese, manganic oxide|
|Molar mass||86.9368 g/mol|
535 °C, 808 K, 995 °F
|Solubility in water||insoluble|
|Std enthalpy of
|EU classification||Harmful (Xn)
|Other anions||Manganese disulfide|
|Other cations||Technetium dioxide
|Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)|
Manganese dioxide, also known as manganese(IV) oxide, is a chemical compound of manganese and oxygen. It contains manganese in the +4 oxidation state. Its chemical formula is MnO2. It is black and powdery. It is used as a depolarizer in alkaline batteries and Leclanche batteries. It is found naturally as the mineral pyrolusite.
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