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
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.21
Assay:
98.5-102.0%
Grade:
ACS reagent
Form:
powder
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.)
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 Code
11 - Combustible Solids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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