P3289
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:
Molecular Weight:
422.39
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
237-722-2
MDL number:
Assay:
98.5-102.0%
Grade:
ACS reagent
Form:
powder
Solubility:
water: soluble
grade
ACS reagent
Quality Level
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.)
solubility
water: soluble
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
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.
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Storage Class
11 - Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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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)
Factors influencing acrylamide formation in rye, wheat and spelt breads.
Przygodzka M, et al.
Journal of Cereal Science, 65, 96-102 (2015)
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)