Product Description
Iron (II) Sulfate Heptahydrate 500 gm Lab Grade for analysis Only. Iron (II) sulfate heptahydrate for analysis EMSURE ACS, ISO, Reag. Ph Eur. CAS 7782-63-0, EC Number 233-336-3, chemical formula FeSO * 7HO. Catalog Number 103965 Packing: 500 gr Replaces FX0260-1 Synonyms Iron vitriol Description Iron (II) sulfate heptahydrate CAS number 7782-63-0 EC index number 026-003-01-4 EC number 233-336-3 Grade ACS, ISO, Reag. Ph Eur Hill Formula FeOS * 7HO Chemical formula FeSO * 7HO Molar Mass 278.02 g / mol HS Code 2833 29 80 Specifications Assay (manganometric) 99.5 – 102.0% Identity passes test The appearance of the solution passes the test Insoluble matter 0.01% pH-value (5%; water) 3.0 – 4.0 Chloride (Cl) 0.0005% Phosphate (PO) 0.001% Total nitrogen (N) 0.001% Heavy metals as Pb 0.005% As (Arsenic) 0.0002% Ca (Calcium) 0.005% Cr (Chromium) 0.005% Cu (Copper) 0.001% Fe III (Iron III) 0.02% K (Potassium) 0.002% Mg (Magnesium) 0.002% Mn (Manganese) 0.05% Na (Sodium) 0.02% Ni (Nickel) 0.005% Pb (Lead) 0.0005% Zn (Zinc) 0.005% Substance not precipitated by ammonium hydroxide 0.1%