Specification: Chemical Formula: FeSO4·H2O Appearance: Gray free flowing granule Assay (as Fe): ≥ 30.0% Arsenic (as As): ≤ 5 ppm Lead (as Pb): ≤ 15 ppm Cadmium (as Cd): ≤ 10 ppm Particle Size: ≥ 95.0% between 20 60 mesh Package: Net weight 25kgs pp woven bags. Shelf life: Two years in dry conditions after production. Species: piglet, swine, poultry, aquaculture For detailed information, pls contact us.