Specifications(Ferrous Sulfate Heptahydrate):

Item No. Items Guaranteed Specification Typical Analysis Result 1 FeSO4. 7H2O 98% Min. 99% 2 Fe 19.7% Min. 19.9% 3 Pb 20 ppm Max. 10 ppm 4 As 2 ppm Max. 11ppm 5 Cd 5 ppm Max. 1ppm 6 Size Through 40 mesh sieve Through 40 mesh sieve