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VWR Potassium hexacyanoferrate (II) trihydrate ≥99.0%, AnalaR NORMAPUR® analytical reagent
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Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Powder |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | K₄Fe(CN)₆·3H₂O |
VWR® Potassium Hexacyanoferrate(II) Trihydrate (≥99.0%), also known as potassium ferrocyanide, is supplied under the AnalaR NORMAPUR® analytical grade designation, ensuring high-purity and reproducibility for laboratory and analytical applications.
This crystalline salt is widely used in analytical chemistry as a reducing agent, in metal complexation studies, pigment manufacture, and as a component of laboratory reagents such as Turnbull’s blue and Prussian blue. Its ≥99% assay and low impurity profile make it suitable for both research and regulated laboratory use.
Key Features
- High Purity: Assay ≥99.0% (AnalaR NORMAPUR®).
- Analytical Grade: Conforms to rigorous impurity limits for chloride, sulfate, sodium, and insolubility.
- Stable Solid: Crystalline hydrate with a defined composition.
- Versatile Reagent: Used in analytical chemistry, pigments, electroplating, and coordination chemistry.
- Controlled Quality: Reliable for reproducible results in trace-level analysis.
Applications
- Analytical Chemistry: Reagent for detecting ferric ions and in redox chemistry.
- Pigments & Dyes: Precursor for Prussian blue and related iron-cyanide pigments.
- Electroplating & Metal Finishing: Used in baths and surface treatment formulations.
- Coordination Chemistry: Ligand for transition metal complexes in research.
- Laboratory Reagents: Employed in ferrocyanide-based tests and solutions.
Specifications
| Property | Details |
|---|---|
| Assay (Purity) | ≥99.0% |
| CAS Number | 14459-95-1 |
| Molecular Formula | K₄Fe(CN)₆·3H₂O |
| Molecular Weight | 422.39 g/mol |
| Appearance | Yellow crystalline solid |
| Melting Point | 70 °C |
| Density (20 °C) | 1.889 g/cm³ |
| Insolubility in Water | ≤0.03% |
| Chloride (Cl⁻) | ≤0.02% |
| Sulphate (SO₄²⁻) | ≤50 ppm |
| Sodium (Na⁺) | ≤0.02% |
| Barium Test | Passes test |
| Storage Temperature | Ambient |
| Hazard Classification | Environmentally hazardous |
Packaging & Ordering Information
| Catalog Number | Description | Pack Size | Container |
|---|---|---|---|
| 26816.232 | VWR® Potassium Hexacyanoferrate(II) Trihydrate ≥99.0%, AnalaR NORMAPUR® | 250 g | Plastic bottle |
| 26816.298 | VWR® Potassium Hexacyanoferrate(II) Trihydrate ≥99.0%, AnalaR NORMAPUR® | 1 kg | Plastic bottle |
Safety Information
- Hazard Classifications: Irritant, Environmental hazard (harmful to aquatic life).
- Precautions: Avoid dust formation, release to the environment, and contact with acids (which can release toxic hydrogen cyanide gas).
- Storage: Keep tightly closed in a dry, well-ventilated place.
VWR® Potassium Hexacyanoferrate(II) Trihydrate ≥99.0% is a high-purity, analytical-grade reagent for use in analytical chemistry, pigment manufacture, metal treatment, and coordination studies. Its AnalaR NORMAPUR® designation, strict impurity controls, and ≥99% assay make it a trusted reagent for laboratory and industrial research applications.
- Pack Size: 250g 1kg