Potassium Ferrocyanide Testing Reagen
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Product Code : SCL-CA-12662
Quick Answer: The Potassium Ferrocyanide Testing Reagen is a coordination compound, potassium hexacyanoferrate(II), used for supervised iron-ion tests, Prussian blue demonstrations and qualitative analysis.
Last updated: October 2026
Key Features
- Potassium hexacyanoferrate(II) coordination compound
- Trihydrate formula K4[Fe(CN)6]·3H2O, molecular weight about 422.39 g/mol
- Forms Prussian blue with suitable iron salts
- Not the same as potassium ferricyanide, K3[Fe(CN)6], or simple cyanide salts
- Kept away from acids, as acid contact can release toxic hydrogen cyanide gas
Technical Specifications
| Specification | Value |
|---|---|
| Chemical name | Potassium ferrocyanide |
| Formula, trihydrate | K4[Fe(CN)6]·3H2O / C6H6FeK4N6O3 |
| Molecular weight, trihydrate | About 422.39 g/mol |
About This Product
The reagent is used to teach coordination compounds, complex ions and iron chemistry, including Prussian blue formation as a colour test. Solutions are prepared only as the approved method directs, taking the needed quantity with a clean, dry spatula and avoiding dust. Contact with acids and strong heating are avoided, and the reagent is stored separately from acids.
Frequently Asked Questions
Q1. How is potassium ferrocyanide different from potassium ferricyanide?
Potassium ferrocyanide is K4[Fe(CN)6], while potassium ferricyanide is K3[Fe(CN)6]. They are different compounds and should not be confused.
Related: Chemical Analysis, Tannic Acid Lab Reagent, Scientific Grade Aluminium Metal.
For a quotation on the Potassium Ferrocyanide Testing Reagen, contact School Equipments India.
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