What is Manganese ?

Manganese (Mn) is a brittle metal with silvery white color, which is an element arranged in subgroup VIIB of the periodical table of elements. Its atomic number is 25 and the atomic weight 54.938. It has II-, III-, IV- and VII-valence states in nature, of which II- and IV-valence states are more common.

Up to date, over 150 Mn-bearing minerals have been discovered. Among them, the following minerals are of industrial value and commonly seen in nature: pyrolusite (MnO2), psilomelane (mMnO?MnO2?H2O), manganite (MnO2?H2O), hausmannite (Mn3O4), braunite (Mn2O3), rhodochrosite (MnCO3) and alabandite (MnS).

Manganese and its compounts are employed in diversified fields of the national economy. The iron and steel industry is the major user, which consumes 90%~95% of the total Mn resources. The rest 5%~10% are used for other purposes, such as chemical, light, building materials, national defense and electronics industries, environment protection and agriculture and livestock husbandry. All in all, manganese is an important strategic metal in the national economy

• China’s manganese ore imports in November 2008 (0)
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