... material in the production of magnesium carbonate,magnesium sulphate,magnesium oxide ,magnesium hydroxide and other magnesium compounds in chemical industry. Used ... plate, sanitary, ware ceiling,floor brick ,magnesium cement and other materials that used in building .The ... metal chloride0.6% max Insoluble0.2% maxColor50Properties:White flake and crystals, light yellow flakes or crystals, bitter taste ...