Manganese Dioxide (MnO2) - Granules

Characteristic

Manganese(IV) oxide is the inorganic compound with the formula MnO₂. This blackish or brown solid occurs naturally as the mineral pyrolusite, which is the main ore of manganese and a component of manganese nodules. 

Chemical formula：MnO₂

Molar mass：86.9368 g/mol

Appearance：Brown-black solid

Density：5.026 g/cm³

Melting point：535 °C (995 °F; 808 K) (decomposes)

Solubility in water：insoluble

Magnetic susceptibility (χ)：+2280.0·10⁻⁶ cm3/mol

Crystal structure：Tetragonal, tP6, No. 136

Application

The predominant application of MnO₂ is as a component of dry cell batteries: alkaline batteries and so called Leclanché cell, or zinc–carbon batteries. Approximately 500,000 tonnes are consumed for this application annually. Other industrial applications include the use of MnO₂ as an inorganic pigment in ceramics and in glassmaking.

MnO2_MSDS.pdf