Ferrous sulfate heptahydrate(Feed grade 98%) Specification Appearance: Free Flowing blue-green crystals Purity: 98.0% Min Fe Content: 19.68% Min Lead(Pb): 20PPm Max Arsenic(As): 5PPm Max Water Insoluble Matter: 0.2% Max
Ferrous sulfate Monohydrate(Feed grade,powder) Specification Appearance: Slight grey, Powder Fe Content: 30.0% Min Lead(Pb): 30PPm Max Cadmium(Cd): 10PPm Max Arsenic(As): 5PPm Max