inorganic iron salt inorganic sulfate salt iron(2+) sulfate (anhydrous) 0 151.88667 151.908 ppdb:1399 ferrous sulfate (anh.) Fe(II)SO4 CHEBI:75832 BAUYGSIQEAFULO-UHFFFAOYSA-L ferrous sulfate chebi_ontology InChI=1S/Fe.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2 ferrous sulfate (anhydrous) metacyc.compound:CPD0-2386 O=S(=O)([O-])[O-].[Fe+2] Fe.O4S iron(2+) sulfate reaxys:4933679 iron(2+) sulfate iron sulfate (1:1) A compound of iron and sulfate in which the ratio of iron(2+) to sulfate ions is 1:1. Various hydrates occur naturally - most commonly the heptahydrate, which loses water to form the tetrahydrate at 57°C and the monohydrate at 65°C. FeSO4 ferrous sulfate iron(II) sulfate cas:7720-78-7 ferrous sulfate anhydrous wikipedia.en:Iron(II)_sulfate iron(II) sulfate (1:1) iron(2+) sulfate (anh.)