Ferrous Sulfate Heptahydrate

Ferrous sulfate heptahydrate is iron(II) sulfate crystallised with seven molecules of water, supplied by Nustras as a crystalline powder and used as a source of the mineral iron for supplements, food fortification, animal feed and industrial applications. Iron is an essential trace element. It is also known as green vitriol.

Ferrous sulfate heptahydrate is formulated into iron supplements in tablets, capsules and liquid preparations, into nutritional premixes and fortified foods, and into feed-grade mineral premixes; outside nutrition it is used in water purification and horticulture.

The material is a blue-green crystalline powder. CAS number 7782-63-0, molecular formula FeH14O11S, molecular weight 278.02. Iron(II) is assayed by redox titration and identity confirmed by the iron and sulfate reactions; the material is standardised to specification and packed in sealed packaging as it is air- and moisture-sensitive. Heavy-metal and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies ferrous sulfate heptahydrate in bulk commercial quantities, in sealed food-grade bags and fibre drums, to manufacturers and formulators internationally, with a certificate of analysis, specification sheet and country-of-origin documentation on every lot. Ferrous sulfate is a permitted iron source in major supplement, food-fortification and feed markets; buyers confirm the elemental-iron contribution and permitted level for their application. Contact us for grade, pricing per kilogram and lead time.