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60279

Sigma-Aldrich

Potassium hexacyanoferrate(II) trihydrate

BioUltra, ≥99.5% (RT)

Synonym(s):

Potassium ferrocyanide, Yellow prussiate

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About This Item

Linear Formula:
K4Fe(CN)6 · 3H2O
CAS Number:
Molecular Weight:
422.39
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.25

product line

BioUltra

Quality Level

Assay

≥99.5% (RT)

form

solid

impurities

insoluble matter, passes filter test

pH

8.0-10.0 (25 °C, 0.5 M in H2O)

mp

70 °C (lit.)

solubility

H2O: 0.5 M at 20 °C, clear, faintly yellow to greenish-yellow

anion traces

carbonate (CO32-): ≤20 mg/kg
chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤0.1 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤10 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤10 mg/kg
Sr: ≤5 mg/kg
Zn: ≤10 mg/kg

absorption

cut-off at 411 nm in H2O at 0.5 M

SMILES string

O.O.O.[K+].[K+].[K+].[K+].N#C[Fe-4](C#N)(C#N)(C#N)(C#N)C#N

InChI

1S/6CN.Fe.4K.3H2O/c6*1-2;;;;;;;;/h;;;;;;;;;;;3*1H2/q;;;;;;-4;4*+1;;;

InChI key

NRYOVBQTVIWDNU-UHFFFAOYSA-N

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Application

Potassium hexacyanoferrate(II) a redox couple with potassium hexacyanoferrate(III) is used with luminol-based chemiluninescent assays.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Journal of colloid and interface science, 388(1), 21-30 (2012-09-25)
Nanocrystalline potassium zinc hexacyanoferrate loaded on nanoscale magnetite substrate was successfully synthesized for significantly enhanced removal of cesium from low-level radioactive wastes. A description was given for preparation and properties of these precursors. The physicochemical properties of these nanocomposites were
Jianxiu Du et al.
Luminescence : the journal of biological and chemical luminescence, 17(3), 165-167 (2002-08-08)
A new flow injection chemiluminescence method is described for the determination of captopril. It is based on the enhancing effect of captopril on the chemiluminescence reaction of luminol with potassium ferricyanide in alkaline solution in the presence of potassium ferrocyanide.
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