|Payment Type:||L/C,T/T,D/P,Paypal,Money Gram,Western Union|
|Terms of Trade:||FOB,CFR,CIF,FCA,CPT|
|Min. Order:||1000 Kilogram|
|Delivery Time:||7 Days|
|Place of Origin:||China|
Model No.: Food grade
Iron(II) sulfate (British English: iron(II) sulphate) or Ferrous Sulfate
Medical use: Iron supplement
Molecular Weight: 169.9229
Molecular formula: FeSO4.H2O
CAS No.: 13463-43-9
HS Code: 28332910
Melting point: 64 centigrade
Boiling point: 330centigrade at 760 mmHg
Content: 86-89 percent dried basis FeSO4
Ferrous Sulfate, Dried, occurs as a gray-white to buff colored powder consisting primarily of FeSO4·H2O, with varying amounts of FeSO4·4H2O. It dissolves slowly in water, but is insoluble in alcohol.
Identification A sample gives positive tests for Ferrous Salts (Iron) and for Sulfate, Appendix IIIA.
Assay Not less than 86.0% and not more than 89.0% of FeSO4.
Insoluble Substances Not more than 0.05%.
Lead Not more than 2 mg/kg.
Mercury Not more than 1 mg/kg.
Assay Determine as directed under Assay in the monograph for Ferrous Sulfate. Each milliliter of 0.1 N ceric sulfate is equivalent to 15.19 mg of FeSO4.
Insoluble Residue Dissolve 2 g of sample in 20 mL of freshly boiled 1:100 sulfuric acid, heat to boiling, and then digest in a covered beaker on a steam bath for 1 h. Filter through a tared filtering crucible, wash thoroughly, and dry at 105°. The weight of the insoluble residue does not exceed 1 mg.
Lead Determine as directed in the monograph for Ferrous Gluconate.
Mercury Determine as directed in Method II under Mercury Limit Test, Appendix IIIB.
Packaging and Storage Store in tight containers.