1.High purity ferrous sulphate monohydrate 2.Fe>30%,Pb<20ppm,As<2ppm,Cd<5ppm ... .Certificated by ISO9001:2008 and FAMI-QS 1.High purity ferrous sulphate monohydrate2.Fe>30%,Pb<20ppm,As<2ppm,Cd<5ppm3.Certificated ... by ISO9001:2008 and FAMI-QS Ferrous Sulphate/Ferrous SulfateFerrous sulphate monohydrate is a mineral additive in animal feel. As ...