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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
M 9775 (OTTO) Manganese(IV) oxide pellets, 1-3mm 99.9% Cas 1313-13-9 - received a substantial amount of recent attention due to their distinct structure–property relationships in multiple fields.