Ferricianur Potassium (Product Code: SCI-513/221) is potassium ferricyanide, an analytical reagent grade iron-cyanide complex salt used to detect iron(II) ions and to reveal where iron rusts in school and college chemistry laboratories. It comes as a 100 g pack with its MSDS; the catalogue name is a non-English spelling of potassium ferricyanide. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
| Parameter | Detail |
|---|---|
| Chemical identity | Potassium ferricyanide (potassium hexacyanoferrate(III)), K3[Fe(CN)6] |
| Grade | Analytical reagent |
| Pack size | 100 g |
| MSDS | Supplied with the pack |
| 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. |
| Product code | SCI-513/221 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
In qualitative inorganic analysis, a few drops of potassium ferricyanide solution added to a solution containing iron(II) ions give an intense dark blue precipitate (Turnbull’s blue), while iron(III) ions give only a brown colour. This lets students tell ferrous from ferric salts in seconds, a standard confirmatory step in the salt analysis practicals that school and college syllabuses include.
In corrosion lessons, the reagent is mixed with phenolphthalein in salt water or agar gel to make ferroxyl indicator: blue patches appear where iron dissolves and pink patches where hydroxide ions form, mapping the anodic and cathodic areas on a nail. Its light-sensitive iron chemistry is also the basis of cyanotype (blueprint) images in art-and-science projects. Never heat it strongly or mix it with concentrated acids, which can release hydrogen cyanide; wear gloves and goggles and follow the MSDS.
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, which supplies Ferricianur Potassium from Ambala, Haryana, as part of its range of reagents for inorganic analysis. Iron salts, test-tube racks and dropping bottles for the same practical can be added to one quotation. Read more about the company on the ScienceLab profile page.
Iron-ion tests and rusting experiments with Ferricianur Potassium often call for:
Browse the Laboratory Equipment category for other analytical reagents.
What is Ferricianur Potassium?
Ferricianur Potassium is this catalogue’s spelling of potassium ferricyanide, K3[Fe(CN)6], also called potassium hexacyanoferrate(III). It is a red crystalline complex salt; listing SCI-513/221 is analytical reagent grade and is supplied in a 100 g pack with its MSDS.
How does potassium ferricyanide tell iron(II) from iron(III)?
Ferricianur Potassium gives a deep blue precipitate with iron(II) ions but only a brown colour with iron(III) ions. Iron(III) is confirmed instead with potassium ferrocyanide, which gives Prussian blue, so the two reagents together identify both oxidation states of iron.
Is Ferricianur Potassium dangerous because it contains cyanide?
The cyanide groups in Ferricianur Potassium are held tightly around the iron atom, so it is far less hazardous than simple cyanide salts in normal use. Strong heating or contact with concentrated acids can still release toxic hydrogen cyanide gas, so avoid those conditions and follow the MSDS.
What is the shelf life of Ferricianur Potassium?
Shelf life depends on the chemical, its grade and storage conditions, so no fixed period is quoted for Ferricianur Potassium. Ask us for the expiry date of the batch you are quoted, and keep the container closed, dry and out of direct light, because its solutions slowly decompose in light.
Can Ferricianur Potassium be used to study rusting?
Yes. Ferricianur Potassium mixed with phenolphthalein in salt water or agar forms ferroxyl indicator, which turns blue where iron is oxidised and pink where hydroxide forms. Students use it to see the anodic and cathodic regions on nails, bent wires and coupled metals.
Can institutions order Ferricianur Potassium in bulk?
Ferricianur Potassium can be supplied in multiples of the 100 g pack to schools, colleges, dealers and laboratories in India and international markets. Send the quantity, destination and any vendor paperwork through the contact page, and Jain Scientific Equipments Pvt Ltd (ScienceLab) will reply with a quotation.
Ask for a Ferricianur Potassium price by sending the number of 100 g packs and your delivery location through our contact page. You can also add it to the enquiry cart along with the iron salts and test-tube racks for your salt analysis bench.
Last updated: 24 September 2026