... bag or 1000 big bagQuality Index:MgCl2 content ≥46% Sulphate radical ≤1.0% Alkali metal chloride ≤0.6% ... raw material in the production of magnesium carbonate, magnesium sulphate, magnesium oxide, magnesium hydroxide and other magnesium compounds in chemical industry.2.It' ... , omamental plate, sanitary, ware ceiling, floor brick, magnesium cement and other materials that are used in highrise buildings ...