1.high absorption efficiency 2.low heavy metal 3.no caking 4.magnesium supplyment Magnesium Nitrate tech grade Molecular Formular: Mg(NO3)2.6H2O, ,Molecular Weight:256.41, Appearance:white crystals, Assay:98%min, N:10.5%min,MgO:15.5%min, Cl:0.01%max, SO4:0.5%max, Fe:0.01%max, Pb:0.002%max,Insoluble matter in water:0.05%maxPacking:25kgs plastic woven bag, 24MTs/20'FCL Magnesium nitrate occurs in ...