The color is light yellow, 90 yellow powder, mainly used in sewage treatment, Magnesium Sulfate, magnesium carbonate production. Magnesium Oxide products origin Liaoning Haicheng type light burning Magnesium Oxide Magnesium Oxide 52% is not active import content of 90% mesh 200 burned 4-5 is not dangerous goods packaging vector 50kg/1000kg brand in line uses Magnesium Sulfate, magnesium carbonate, water treatment, desulfurization