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Application: mainly used in concentrated nitric acid as dehydrator, inproducing 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 >4Packing: 25kg bag