Ferrous Sulphate Heptahydrate
CAS No.7782-63-0
Blue-green crystalline grain;
Usage:Chromatographic analysis reagent; reducing agent; ferrite; polymerization catalyst;photoengraving; pharmacy;
Assay(FeSO4•7H2O)>99%;
Fe3-:<0.02%;
Insolulble in water:<0.02%;
Cl-:<0.003%;
Cu:<0.002%;
Zn:<0.01%;
Mn:<0.05%;
As:<0.002%;
Pb:<0.005%