CAS 7782-63-0
Ferrous Sulphate Heptahydrate
CAS 7782-63-0FeSO4·7H2O278.01 g/mol
Ferrous sulphate heptahydrate is primarily utilized for water treatment, acting as a coagulant to remove heavy metals and phosphates. This blue-green crystalline compound, known for its iron-rich properties, is used in various industrial applications including agriculture, pigments, and pharmaceuticals. Industrial buyers in East Africa use it in water and wastewater treatment, as well as in fertilizers. Suppliers provide comprehensive documentation, ensuring compliance with regional standards.
Main applicationWater treatment — Precipitate phosphates and remove heavy metals
Ferrous sulphate heptahydrate is significant for its crucial role in water treatment and soil fertilization. Its ability to remove impurities from water and supplement iron in agricultural applications makes it invaluable for sustainable environmental management and agricultural productivity, especially in East Africa where infrastructure and agricultural development are key.
Also known as
- Ferrous sulphate
- Iron(II) sulfate
- Green vitriol

Trade pricing
Quoted per enquiry
Pricing depends on volume, grade and delivery point. Our desk responds within two working hours.
Available packaging
- 25 kg moisture-resistant HDPE or kraft bags
Documentation
Batch-specific COA issued with every consignment.
Technical specifications
- CAS number
- 7782-63-0
- Chemical formula
- FeSO4·7H2O
- Molecular weight
- 278.01 g/mol
- Grade
- Industrial grade
- Appearance
- Blue-green crystalline solid
- Concentration
- 98% %
Ferrous sulphate heptahydrate, with the molecular formula FeSO4·7H2O, is a light blue-green crystalline solid. Its effectiveness as a coagulant is due to its iron content, which facilitates the precipitation of impurities in water treatment processes. The stability of this compound is critical, as it tends to oxidize, turning yellowish unless stored in a low-pH environment. Buyers must consider the product's purity and application requirements when choosing a grade. Purity ranges from 97% for industrial uses to over 99% for reagent and food-grade applications. Commonly supplied in 25 kg moisture-resistant HDPE or kraft bags, ensuring stable delivery conditions.
Delivery
Ferrous Sulphate Heptahydrate is dispatched from our Nairobi warehouse across Kenya, and export delivery is arranged to the wider East African market. Lead time depends on quantity and grade and is confirmed with your quotation — see delivery and collection for the towns we reach and how dispatch works.
Applications & uses
- Water treatment — Precipitate phosphates and remove heavy metals
- Agriculture — Iron supplement for soil and plants
- Pigments and dyes — Precursor for iron oxide pigments
- Animal feed — Nutritional iron supplement
- Textile dye fixation — Stabilizes and fixes dyes
- Catalyst precursor — Chemical synthesis and industrial catalysts
- Ceramics and glass — Imparts color to glazes
Industries we supply this to
Why buy this from Sparks
- High effectiveness in water purification
- Enhances plant growth and soil health
- Stabilizes pigments for manufacturing
- Improves nutritional content in animal feed
- Supports consistent dyeing processes
- Versatile use in multiple industries
Quality assurance
- Batches are checked against the specification values listed above before dispatch.
State what your process, auditor or customs clearance requires when you request a quotation, and it is confirmed with the quote.
Safety, handling & storage
Always consult the full Safety Data Sheet before handling. Personnel must use appropriate PPE and follow local regulations for storage, transport and disposal.
Frequently asked questions
What is the CAS number of Ferrous Sulphate Heptahydrate?
The CAS registry number for Ferrous Sulphate Heptahydrate is 7782-63-0. Its chemical formula is FeSO4·7H2O, with a molecular weight of 278.01 g/mol. Quote this number when requesting a quotation or checking documentation, as it identifies the substance unambiguously regardless of the trade name used.
What are the other names for Ferrous Sulphate Heptahydrate?
Ferrous Sulphate Heptahydrate is also referred to as Ferrous sulphate, Iron(II) sulfate and Green vitriol. These names describe the same substance, so a specification or enquiry written against any of them can be matched to this product.
What grade of Ferrous Sulphate Heptahydrate is supplied?
Ferrous Sulphate Heptahydrate is supplied as Industrial grade. State the grade your process requires when requesting a quotation — where an alternative grade can be sourced, it is confirmed at quotation stage rather than assumed.
What concentration is Ferrous Sulphate Heptahydrate supplied at?
Ferrous Sulphate Heptahydrate is supplied at a concentration of 98%. Concentration and assay are separate figures: the concentration describes the strength of the material as supplied, and the certificate of analysis issued for your consignment carries the measured values for that batch.
What does Ferrous Sulphate Heptahydrate look like?
Ferrous Sulphate Heptahydrate is described as blue-green crystalline solid. Appearance is a useful first check on receipt of goods, though it does not replace the certificate of analysis for confirming that the material meets specification.
What is Ferrous Sulphate Heptahydrate used for?
Common applications include water treatment — Precipitate phosphates and remove heavy metals, agriculture — Iron supplement for soil and plants, pigments and dyes — Precursor for iron oxide pigments, animal feed — Nutritional iron supplement, textile dye fixation — Stabilizes and fixes dyes and catalyst precursor — Chemical synthesis and industrial catalysts. The suitability of the product for a particular process depends on the grade and specification required, which is worth confirming against your own process conditions.
Which industries use Ferrous Sulphate Heptahydrate?
Ferrous Sulphate Heptahydrate is supplied to the Water Treatment, Agriculture & Agrochemicals, Pharmaceuticals & Healthcare, Paints, Coatings & Inks and Textile & Leather Tanning sectors. These are the industries this product is listed against in our catalogue; if your application falls outside them, we can advise on suitability before you order.
What packaging is Ferrous Sulphate Heptahydrate available in?
Ferrous Sulphate Heptahydrate is supplied in 25 kg moisture-resistant HDPE or kraft bags. Where a different pack size or bulk delivery is required, it is confirmed at quotation stage against availability rather than listed here as standard.
What is the HS code for Ferrous Sulphate Heptahydrate?
Ferrous Sulphate Heptahydrate is recorded against the EC number 231-753-5 and the HS customs code 28332910. Quote this on customs and export paperwork; it is confirmed again on the commercial invoice for your specific consignment.
Related to Ferrous Sulphate Heptahydrate
Where this product sits in the catalogue, and the sectors that use it.
References
Technical information on this page was compiled from the following published sources. Safety and handling data always comes from the supplier’s own safety data sheet.
- 1.Ferrous sulfate heptahydrate | FeH14O11S | CID 62662 - PubChempubchem.ncbi.nlm.nih.gov
- 2.The International Pharmacopoeia - Twelfth Edition, 2025digicollections.net
- 3.Registration Dossier - ECHAecha.europa.eu
- 4.Ferrous sulfate heptahydrate 98 purity - Johnson Chemicaljohnsonchemical.com
- 5.ThermoFisher Scientificassets.thermofisher.com
- 6.PRODUCT TECHNICAL DOSSIERcambridgecommodities.com
- 7.Span Chemie | Ferrous Sulphate Heptahydrate 9850 Extra Purespanlab.in
- 8.Iron(ii) Sulphate Heptahydrate - Rongqing Chemical Co Ltdrqsulfates.com
- 9.Ferrous Sulphate Heptahydrate Price in Kenya | Buy Ferrous Sulphate He | Zenco Systems Ltd - Chemical Divisionzencochemicals.com
- 10.Ferrous Sulphate Heptahydrate Supplier in Kenya | FINSTARfinstarindustrialchemicals.com
- 11.Turns out pure ferrous sulfate heptahydrate is bluereddit.com
- 12.Ferrous Sulphate (feSO4.7h2o)reddit.com
- 13.Iron Sulfate / Ferrous Sulfate crystalsreddit.com
- 14.Ferrous Sulphate Industrial Applications | PalviFZEreddit.com
- 15.One week growth on ferrous sulfatereddit.com
- 16.Ferrous Sulphate (FeSO₄) in East Africa - Finstar Industrial Chemicalsfinstarindustrialchemicals.co.ke
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