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P3289

Sigma-Aldrich

Potassium hexacyanoferrate(II) trihydrate

ACS reagent, 98.5-102.0%

Synonym(s):

Potassium ferrocyanide, Yellow prussiate

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About This Item

Linear Formula:
K4Fe(CN)6 · 3H2O
CAS Number:
14459-95-1
Molecular Weight:
422.39
EC Number:
237-722-2
MDL number:
MFCD00167023
UNSPSC Code:
12352302
PubChem Substance ID:
329820167
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

Assay

98.5-102.0%

form

powder

reaction suitability

reagent type: catalyst
core: iron

impurities

≤0.005% Insoluble matter

pH

8-10 (25 °C, 211 g/L)

mp

70 °C (lit.)

anion traces

chloride (Cl-): ≤0.01%
sulfate (SO42-): passes test (limit about 0.01%)

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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General description

Potassium hexacyanoferrate(II) trihydrate, commonly known as potassium ferrocyanide, is a commonly used anticaking agent. Its cytotoxic and genotoxic effect has been evaluated. The growth of chemical garden in aqueous potassium hexacyanoferrate solution droplets on a superhydrophobic surface has been reported. The inhibition efficiency of potassium ferrocyanide in phosphoric acid solution against the corrosion of mild steel has been investigated.

Application

Potassium hexacyanoferrate(II) trihydrate may be used in the following processes:
  • Preparation of Carrez I solution.
  • Milk sample preparation for gold nanoparticles (AuNPs) based colorimetric detection of melamine.
  • Preparation of ferrocyanide/ferricyanide reaction, a redox pair solution for electrochemical testing.

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Studies on the inhibitive effect of potassium ferrocyanide on the corrosion of steel in phosphoric acid.
Hmamou DB, et al.
Research on Chemical Intermediates, 39(8), 3475-3485 (2013)
Factors influencing acrylamide formation in rye, wheat and spelt breads.
Przygodzka M, et al.
Journal of Cereal Science, 65, 96-102 (2015)
Mixing with herringbone-inspired microstructures: overcoming the diffusion limit in co-laminar microfluidic devices.
Marschewski J, et al.
Lab on a chip, 15(8), 1923-1933 (2015)
Thorsten Litzenburger et al.
Clinical science (London, England : 1979), 134(7), 921-939 (2020-04-03)
Maternal obesity determines obesity and metabolic diseases in the offspring. The white adipose tissue (WAT) orchestrates metabolic pathways, and its dysfunction contributes to metabolic disorders in a sex-dependent manner. Here, we tested if sex differences influence the molecular mechanisms of
Olivier Urwyler et al.
Science (New York, N.Y.), 364(6439) (2019-05-03)
Central nervous system (CNS) circuit development requires subcellular control of synapse formation and patterning of synapse abundance. We identified the Drosophila membrane-anchored phosphatase of regenerating liver (Prl-1) as an axon-intrinsic factor that promotes synapse formation in a spatially restricted fashion.
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