Manganese exists in three main forms: metallic manganese, organic manganese and inorganic manganese.

inorganic manganese
Inorganic manganese refers to manganese compounds without organic structure, they can be manganese oxide, manganese hydroxide or manganese sulfate, etc.

organic manganese
Organic manganese refers to organic compounds that have manganese at their core; they can be organomanganese salts, organomanganates, or organomanganese esters.

metallic manganese
Manganese metal is a silvery gray metal. It is a stable element with a high melting point and good corrosion resistance. It is commonly found in ores in nature and is a valuable metallic element.

