Activated Manganese Dioxide is an Inorganic Compound with the molecular formula MnO2, it is a black or brown powder. Activated Manganese Dioxide Precipitates manganese dioxide from aqueous alkaline or acidic media, then the sediment is washed thoroughly and dried at elevated temperatures. ACMD is widely used for polysulfide sealant and Catalyst. Qingchong stands out as a specialized manufacturer of activated manganese dioxide, distinguished by a multifaceted array of strengths that include high-quality products, innovative processes and comprehensive technical support.