... 0.5Mesh size(µm)-95Mesh size12-60-Ferrous sulphate Heptahydrateuses: In industry,it is used to ... agriculture, it is for fertilizer, weedicide, pesticide treating wheat smut etc. Ferrous sulphate monohydrate Usage: It is feed ... as making iron oxide red, granule material is good fertilizer, which can effectively improve soil, , remove moss ... net each. ferrous sulfate heptahydrate/monohydrate high quality