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Merck
CN

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
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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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Articles

Extract pantothenic acid (vitamin B5) from infant formula and quantify via LC-MS/MS using Ascentis® Express C18 UHPLC column per GB 5009.210-2023.


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)
Surachet Duanghathaipornsuk et al.
Nanomaterials (Basel, Switzerland), 10(6) (2020-06-13)
A composite sensor consisting of two separate inorganic layers of Prussian blue (PB) and the composite of cerium oxide nanoparticles (CeNPs) and graphene oxide (GO), is tested with •OH radicals. The signals from the interaction between the composite layers and



Global Trade Item Number

SKUGTIN
P3289-500G04061835349487
P3289-100G04061835349470
P3289-5G04061834367611