... 78-7 3.purity:98% 4.factory.output 10000tons per month ferrous sulphate fertilizer[Product Name]: Ferrous Sulfate [Molecular Formula]: FeSO4 ... lined woven bag .[ Weight]: 25kg/bag. [Properties]: Ferrous sulfate is blue green monoclinic crystal or grain, used in pesticide ... gradeFerrous sulfate (FeSO4.7H2O) ,%98.094.090.0TiO2 , %≤0.50.50.75mWater insoluble matter, %≤0.20.50.75 ferrous sulfate fertilizer ...