Product Name: Manufacturers Selling High-Quality Food Grade 99.5% Ferrous Sulfate Heptahydrate for Food Additives Model NO.: sulfate-8-1-2 Grade Standard: Food Grade Appearance: Blue-Green Crystals Type: Ferrous Sulfate Purity: ?99% Certification: CCIC, CIQ, RoHS, ISO CAS No.: 7782-63-0 CAS: 7782-63-0 Trademark: Sunway Transport Package: 25kg/Bag Specification: 40mesh Origin: China HS Code: 28332910 Product Description 1.Chemical Name: ferrous sulfate Heptahydrate2.Molecular Formula : FeSO4·7H2O3.Molecular Weight: 278.02(Heptahytrate)4.CAS: 7782-63-0(Heptahydrate)5.Character:Pale,blue-green crystals or granules that are efflorescent in dry air.In moist air,it oxidizes readily to form a brown-yellow,basic ferric sulfate. It''s soluble in water, insoluble in ethanol.6.Usage: It is used as nutrient, fruit and vegetable chromogenic reagent.7.Packing: It is packed with plastic bag as inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.8.Storage and Transport: It should be stored in a dry and ventilating warehouse, kept away form water and moisture during transport, unloaded with care so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.IndexSpecificationGB29211-2012Content,w% Conten(FeSO4·7H2O)99.5(Pb), mg/Kg ≤Lead 2(As), mg/Kg ≤Arsenic 3(Hg), mg/Kg ≤Mercury 1