... NO 1313-13-9 EINECS NO 215-202-6 Manganese dioxideMolecular formula:MnO2Molecular weight:86.94Properties: black or black ... depolarizer of battery, decoloring agent in glass industry, material of manganese alloy, heat gaining agent of casting industry, adsorbent of ,carbon ... monooxide oxidant, catalyst, material of enamel and manganese salt. Or used in firework, the purification of water, ...