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Manganese chloride is produced by treating manganese(IV) oxide with concentrated hydrochloric acid.
M 1477 (OTTO) Manganese(II) chloride, tetrahydrate, GR 98%+ Cas 13446-34-9 - used in the production of dry cell batteries. It is a precursor material for antiknock compound methylcyclopentadienyl manganese tricarbony.