They are colourless. Save your draft before refreshing this page. Submit any pending changes before refreshing this page. read more
In glass the manganese dioxide forms a violet silicate which cancels the green color of Iron (II). (9) Manganese dioxide is also used as a black-brown pigment in paint and as a filler in dry cell batteries. The great majority of manganese ore ends up in steel production where the manganese desulfurizes and deoxidizes the steel. read more
Manganese is an essential trace nutrient in all forms of life. Physiologically, it. exists as an ion in the body. read more