... nutrition supplement, fruit and vegetable chromogenic reagent 1,Chemical Name: FERROUS SULFATE2,Molecular Formula : FeSO43,Molecular Weight: 152.02CAS: 17375 ... It is easy to oxidize to brown yellow alkalescent ferric sulphate. It’s soluble in water, insoluble in ethanol.6, ... substances. SpecificationFAO/WHO,1999Content(Fe)%29~31Lead0.0002Mercury0.0001 food additives-ferrous sulphate monohydrate