Application: mainly used in concentrated nitric acid as dehydrator, in producing explosives, catalysts and other magnesium salts, as well as incineration agent for wheat. Features: 1) Water insoluble <=0.05% 2) Ferrum (Fe) <=0.001% 3) Heavy metal content(based on Pd) <=0.002% 4) PH value >4 Packing: 25kg bag