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ron( II) sulfate ( Br.E. iron( II) sulphate) or ferrous sulfate is the chemical compound with the formula FeSO4. Known since ancient times as copperas and as green vitriol, the blue-green heptahydrate is the most common form of this material. All iron sulfates dissolve in water to give the same aquo complex [ Fe( H2O) 6] 2+ , which has octahedral molecular geometry and is paramagnetic.
