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Merck
CN

31253

Potassium hexacyanoferrate(III)

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99%

Synonym(s):

Potassium ferricyanide, Red prussiate

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About This Item

Linear Formula:
K3Fe(CN)6
CAS Number:
13746-66-2
Molecular Weight:
329.24
NACRES:
NB.24
PubChem Substance ID:
329753702
UNSPSC Code:
12352302
EC Number:
237-323-3
MDL number:
MFCD00011392
Assay:
≥99%
Form:
crystalline

Key Documents

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InChI key

MIMJFNVDBPUTPB-UHFFFAOYSA-N

InChI

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

SMILES string

[K+].[K+].[K+].N#C[Fe-3](C#N)(C#N)(C#N)(C#N)C#N

grade

ACS reagent, puriss. p.a.

agency

USP/NF, reag. ISO, reag. Ph. Eur.

assay

≥99%

form

crystalline

technique(s)

titration: suitable

impurities

≤0.02% hexacyanoferrate(II) ([Fe(CN)6]4-)

pH

6-9 (25 °C, 329 g/L)

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤50 mg/kg, Cu: ≤10 mg/kg, Na: ≤200 mg/kg, Ni: ≤10 mg/kg, Pb: ≤20 mg/kg, Zn: ≤5 mg/kg

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General description

Potassium hexacyanoferrate(III) (Potassium ferricyanide) is an alkali hexacyanoferrate. On heating, it undergoes decomposition to afford yellow-brown hexacyanoiron(III) acid. It can be prepared by the anodic oxidation of K4[Fe(CN)6].

Application

Potassium hexacyanoferrate(III) may be employed as an oxidizing agent during the fabrication of glucose conductometric biosensor.

pictograms

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

hcodes

H319,H411

Hazard Classifications

Aquatic Chronic 2 - Eye Irrit. 2

supp_hazards

EUH032

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ1893
MKCR0467
MKCS2267
MKCQ9917
MKCR5546

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Glucose conductometric biosensor with potassium hexacyanoferrate (III) as an oxidizing agent.
Dzyadevich SV, et al.
Analytica Chimica Acta, 374(1), 11-18 (1998)
Eagleson M.
Concise Encyclopedia Chemistry, 291-291 (1994)
Alemnew Geto et al.
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Daehee Kim et al.
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