Ferrous Sulphate Mono 1.high purity food grade chemical 2.lower cost ,perfect effect 3.promptly delivery 4.manufacturer Ferrous sulphate Mono .appearance : Green or light green powder ,detail:FeSO4.H2O:98%Fe>= 18%]TiO2 <= 0.5PH Value: 3.5--5.0H2SO4. < =1.0As <= 0.0005water insoluble:<=0.5%application :water treatment , feed additive , plant fertilizer . Ferrous sulphate Mono