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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.
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.
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