Bluish-green (I personally would call it aquamarine or possibly teal). The link shows a picture of (solid) iron (II) sulfate heptahydrate, which is the same shade as the solution would be.
The anhydrous copper(II) sulfate is white, the pentahydrate is blue.Iron is gray.
There are two compounds , that are sulphates of iron. It depends on the oxidation state of the iron cation. Oxid'n state '2' ; Ferrous sulphate ;Iron(II) sulphate ; (FeSO4) (Pale green colour) Oxid'n state '3' ; Ferric sulphate ;Iron(III) sulphate ; (Fe2(SO4)3) (Brown colour).
When iron II sulphate reacts with ammonia, it forms ferrous ammonia sulphate [Fe(NH3)2(SO4)2]. This compound is a coordination complex in which the iron atom is surrounded by ammonia molecules and sulfate ions.
Iron(II) sulfate typically appears as a pale green or light green solution when mixed with water.
dark green (but orange - brown if left standing)
Iron (II) sulphate has the formula FeSO4. The sulphate ion has a 2- charge, and the iron (II) ion has a 2+ charge, so only one of each ion is needed to form a neutral iron (II) sulphate compound.
iron(II) sulphate
When a iron nail is dipped into copper sulphate solution after sometime the colour is changed into pale green.
Iron(II) Sulphate or Iron(III) Sulphate Iron (II) Sulphate also goes by the name 'Ferrous Sulphate , and has the formula FeSO4 . Iron (III) Sulphate also goes by the name 'Ferric Sulphate , and has the formula Fe2(SO4)3 They are two entirely different compounds. .
The color of aqueous iron(II) sulfate is typically pale green. When potassium iodide is added, it reacts with iron(II) ions to form a dark brown precipitate of iron(II) iodide.
Ferrous sulphate, or iron (II) sulphate has the formula FeSO4.
The chemical formula for ferrous sulfate is FeSO4.