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Synthetic Manganese Dioxide Production, Russell Marion Dugdale

Bachelors Theses and Reports, 1928 - 1970

Before World War I the United States procured all of its battery grade manganese dioxide from the Caucasus. Even at this time some experimentation was under way to produce this depolarizing substance synthetically and the experiments were successful to a large extent so that when the ore from the Caucasus was cut off, the necessary material was produced synthetically. The shortage was relieved when a deposit of manganese dioxide was discovered in Montana, which was superior to the ore from the Caucasus.