Manganese Dioxide Powder [MnO2] 99% Purity USA

Manganese dioxide (MnO2) is supplied as a fine black powder at 99% purity, US sourced, in a 1 lb quantity. It occurs naturally as the mineral pyrolusite and functions as both an oxidizing agent and a catalyst.

Common uses include the depolarizer in alkaline and zinc-carbon cells, a catalyst and oxidant in organic synthesis and peroxide decomposition, a colorant in ceramic glazes and clay bodies where it yields browns, purples and metallic variegation at high fire, filtration media for iron and hydrogen sulfide removal, and an oxidizer in pyrotechnic compositions.