... for manganese-based manganates, and magnetic ferrite in telecommunication appliances. Technical data Items DataAppearance Gray ... when heated. It is liable to solve in diluted acid, not soluble in water or ethanol. Heavy metals ( Pb ... in enamel color, varnish drier, fertilizer, feed additive, steel phosphorous treatment agent, oil desulfurization catalyst, and soil improvement. Manganese(II) carbonate ...