1.04973

Potassium hexacyanoferrate(III)

for analysis EMSURE^® ACS,Reag. Ph Eur

• Synonym(s): Potassium hexacyanoferrate(III), Potassium ferricyanide
• Linear Formula: K₃[Fe(CN)₆]
• CAS Number: 13746-66-2
• Molecular Weight: 329.24
• UNSPSC Code: 12352302
• EC Index Number: 237-323-3
• NACRES: NA.21
• MDL number: MFCD00011392
• Assay: ≥99.0% (iodometric)
• Grade: ACS reagent
• Form: solid
• Solubility: 464 g/L

Properties

• grade: ACS reagent
• Quality Segment: 300
• agency: reag. Ph. Eur.
• product line: EMSURE^®
• assay: ≥99.0% (iodometric)
• form: solid
• impurities: ≤0.005% Insoluble matter
• pH: 6 (20 °C, 50 g/L in H₂O)
• solubility: 464 g/L
• density: 1.85 g/cm³ at 20 °C
• bulk density: 900‑1000 kg/m³
• anion traces: chloride (Cl^-): ≤0.01%, hexacyanoferrate(II) ([Fe(CN)₆]^4-): ≤0.05%, sulfate (SO₄^2-): ≤0.005%
• cation traces: Pb: ≤0.002%
• storage temp.: 2-30°C
• SMILES string: [Fe-3](C#N)(C#N)(C#N)(C#N)(C#N)C#N.[K+].[K+].[K+]
• InChI: 1S/6CN.Fe.3K/c6*1-2;;;;/q;;;;;;-3;3*+1
• InChI key: MIMJFNVDBPUTPB-UHFFFAOYSA-N

Description

Application

• Silsesquioxane organofunctionalized with 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole: Preparation and subsequent reaction with silver and potassium hexacyanoferrate(III) for detection of L-cysteine.: This study presents the preparation of a novel silsesquioxane composite functionalized with triazole, and its subsequent reaction with silver and potassium hexacyanoferrate(III). The resulting material is evaluated for its effectiveness in detecting L-cysteine, showcasing its potential in analytical chemistry applications (do Carmo et al., 2015).


• Concerted derivatization and concentration method with dispersive liquid-liquid microextraction for liquid chromatographic analysis of 5-hydroxyindoles in human serum.: This research discusses a novel approach for the analysis of 5-hydroxyindoles in human serum using liquid chromatography. The method involves derivatization and concentration via dispersive liquid-liquid microextraction, enhancing the detection capabilities in complex biological matrices (Hayama et al., 2013).


• Micro determination of cortisol and cortisone in umbilical cord blood by chemiluminescent high-performance liquid chromatography.: This paper focuses on the micro determination of cortisol and cortisone in umbilical cord blood using chemiluminescent HPLC. The study highlights the method′s sensitivity and precision for analyzing these important biomarkers (Hasegawa et al., 2010).


• Comparative study of different cross-linking agents for the immobilization of functionalized carbon nanotubes within a chitosan film supported on a graphite-epoxy composite electrode.: This study evaluates various cross-linking agents for immobilizing functionalized carbon nanotubes within a chitosan film on a composite electrode. The findings have significant implications for enhancing electrode performance in electrochemical sensors (Pauliukaite et al., 2009).


• Thin layer chromatography/fluorescence detection of 3,4-methylenedioxy-methamphetamine and related compounds.: This research explores the detection of MDMA and related compounds using thin-layer chromatography coupled with fluorescence detection. The method provides a reliable analytical technique for forensic applications (Kato et al., 2008).

Analysis Note

Assay (iodometric): ≥ 99.0 %
Insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.005 %
Hexacyanoferrate (II) (Fe(CN)6)⁴⁻): ≤ 0.05 %
Pb (Lead): ≤ 0.002 %
Corresponds to ACS,Reag. Ph Eur

Other Notes

Replaces: PX1455; PX1455-1; PX1455-2; PX1455-4

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS07,GHS09
• signalword: Warning
• hcodes: H319 - H411
• pcodes: P264 - P273 - P280 - P305 + P351 + P338 - P337 + P313 - P391
• Hazard Classifications: Aquatic Chronic 2 - Eye Irrit. 2
• supp_hazards: EUH032
• Storage Class: 13 - Non Combustible Solids
• wgk: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable