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Ferrous Sulphate
Ferrous Sulphate (Product Code: SCL-849/168) is an iron(II) salt, traditionally called green vitriol, used for the brown ring test for nitrates and for thermal decomposition activities in school and college chemistry laboratories. Teachers also use it as the starting material when students prepare Mohr’s salt, and it is packed as 500 gm of analytical reagent with an MSDS. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, a lab consumables supplier in India for schools, colleges and training institutes.
Specifications
| Parameter | Detail |
|---|---|
| Product code | SCL-849/168 |
| Chemical | Ferrous sulphate (iron(II) sulphate) |
| Grade | Analytical reagent |
| Pack weight | 500 gm |
| Safety sheet | MSDS provided |
| Shelf life | Shelf life depends on the chemical, its grade and storage conditions; ask us for the expiry date of the batch you are quoted. |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is Ferrous Sulphate Used For?
In the brown ring test, a freshly made ferrous sulphate solution is mixed with the suspected nitrate solution, and concentrated sulphuric acid is poured carefully down the side of the tilted tube so that it forms a lower layer. A brown ring at the boundary confirms nitrate. Heating a few crystals in a dry test tube is another favourite: the green crystals lose water, then decompose with the sharp smell of sulphur oxides, leaving a reddish-brown residue, a clear example of a decomposition reaction. Both activities make ferrous sulphate a routine purchase alongside school chemistry lab equipment in India.
Iron(II) ions can be confirmed with potassium ferricyanide, which gives a deep blue precipitate. Because ferrous sulphate slowly oxidises in air, its solution must be prepared just before the test, ideally with a few drops of dilute sulphuric acid; crystals that have turned yellowish-brown on the surface have partly oxidised. Keep the container tightly closed in a cool, dry place and carry out the heating activity in a ventilated room.
Supplier
Jain Scientific Equipments Private Limited operates under the ScienceLab brand in Ambala, Haryana, and supplies Ferrous Sulphate as part of its practical-class reagent range. It sources chemicals for schools, colleges and training institutes in India and international markets, so a department can order reagents and glassware together. More is available on the company profile page.
Related Chemistry Lab Products
Items used with ferrous sulphate in nitrate testing and crystallisation work:
- Sulphuric Acid Concentrated — forms the dense lower layer in the brown ring test.
- Sodium Nitrate — a known nitrate for demonstrating a positive ring.
- Potassium Ferricyanide — confirms iron(II) with a deep blue precipitate.
- Ferrous Ammonium sulphate — the double salt students prepare from ferrous sulphate.
- Porcelain Dish (China Dish) — for concentrating solutions before crystallisation.
See the complete Chemistry Lab range.
Frequently Asked Questions
What quantity and grade of Ferrous Sulphate are supplied?
Ferrous Sulphate (SCL-849/168) is supplied as 500 gm of analytical reagent grade iron(II) sulphate per pack, with an MSDS. Only a few crystals are needed for each brown ring test or decomposition activity, so weigh out small portions as required.
Why must Ferrous Sulphate solution be freshly prepared for the brown ring test?
Ferrous Sulphate solution must be fresh because iron(II) oxidises to iron(III) on standing, and an oxidised solution gives a weak or missing brown ring. Dissolve a small amount just before the test, ideally with a few drops of dilute sulphuric acid.
Is Ferrous Sulphate hazardous?
Ferrous Sulphate is harmful if swallowed and can irritate eyes and skin, while the concentrated sulphuric acid used in the brown ring test is the bigger hazard. Follow the MSDS supplied with the pack and supervise students closely during acid layering.
What is the shelf life of Ferrous Sulphate?
The shelf life of Ferrous Sulphate depends on the chemical, its grade and storage conditions, so this page gives no fixed period. Ask us for the expiry date of the batch you are quoted; airtight, dry storage keeps the crystals green and usable.
Who supplies Ferrous Sulphate (SCL-849/168)?
Ferrous Sulphate (SCL-849/168) is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India. The company provides practical-class reagents and glassware to schools, colleges and training institutes in India and international markets.
Do you supply Ferrous Sulphate to schools in bulk?
Yes, multi-pack orders of Ferrous Sulphate can be quoted for schools and colleges across India and international markets. Include the number of 500 gm packs, the delivery addresses and any acids or glassware needed for the brown ring test in your enquiry.
Request a Quote
Send your Ferrous Sulphate requirement via the contact page, or add it to the enquiry cart along with acids and glassware for your practical sessions.
Last updated: 24 September 2026
