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Description

Identifiers
CAS number	********7 Y,  *********6 (monohydrate), ********0 (heptahydrate)
PubChem	****3
ChemSpider	****4 Y
UNII	RIB****0VW Y
EC number	********5
ChEMBL	CHEMBL******0 N
RTECS number	NO******0

Properties
Molecular formula	FeSO4
Molar mass	**1.**8 g/mol (anhydrous) **9.*2 g/mol (monohydrate) **8.*5 g/mol (heptahydrate)
Appearance	blue/green or white crystals
Density	2.*4 g/cm3 (anhydrous) 1.**8 g/cm3 (heptahydrate)
Melting point	*0 °C (dehydration of heptahydrate) **0 °C (decomp)
Solubility in water	*5.6 g/**0mL (anhydrous) *8.6 g/**0 mL (heptahydrate) (*0°C)

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

Industrially, ferrous sulfate is mainly used as a precursor to other iron compounds. It is a reducing agent, mostly for the reduction of chromate in cement