Noun
An element obtained by reduction of its oxide, as a hard, grayish white metal, fusible with difficulty, but easily oxidized. Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc. Symbol Mn. Atomic weight 54.8.
Source: Webster's dictionaryAccordingly, manganese dioxide catalyses this reaction. Source: Internet
About 80% of the known world manganese resources are in South Africa; other important manganese deposits are in Ukraine, Australia, India, China, Gabon and Brazil. Source: Internet
According to results from a 2010 study, citation higher levels of exposure to manganese in drinking water are associated with increased intellectual impairment and reduced intelligence quotients in school-age children. Source: Internet
Although magnesium and manganese are produced by weathering, exchanges between soil organic matter and living cells account for a significant portion of ecosystem fluxes. Source: Internet
Alternative usage A metric ton unit (MTU) can mean convert within metal (e.g. tungsten, manganese) trading, particularly within the US. Source: Internet
Both copper and manganese are pro-oxidants and can lower the physical properties of the dry rubber. Source: Internet