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60279

Potassium hexacyanoferrate(II) trihydrate

BioUltra, ≥99.5% (RT)

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.25
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
237-722-2
MDL number:
Assay:
≥99.5% (RT)
Grade:
reagent grade
Form:
solid
Solubility:
H2O: 0.5 M at 20 °C, clear, faintly yellow to greenish-yellow
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grade

reagent grade

Quality Level

product line

BioUltra

assay

≥99.5% (RT)

form

solid

impurities

insoluble matter, passes filter test

pH

8.0-10.0 (25 °C, 0.5 M in H2O)

mp

70 °C (lit.)

solubility

H2O: 0.5 M at 20 °C, clear, faintly yellow to greenish-yellow

anion traces

carbonate (CO32-): ≤20 mg/kg, chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤0.1 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤10 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤100 mg/kg, Ni: ≤5 mg/kg, Pb: ≤10 mg/kg, Sr: ≤5 mg/kg, Zn: ≤10 mg/kg

absorption

cut-off at 411 nm in H2O at 0.5 M

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

Application

Potassium hexacyanoferrate(II) a redox couple with potassium hexacyanoferrate(III) is used with luminol-based chemiluninescent assays.

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This Item
1.049821.04982455989
form

solid

form

solid

form

solid

form

crystalline

solubility

H2O: 0.5 M at 20 °C, clear, faintly yellow to greenish-yellow

solubility

water: soluble (211 g/l at 20 °C (68 °F))

solubility

water: soluble (211 g/l at 20 °C (68 °F))

solubility

water: soluble

assay

≥99.5% (RT)

assay

≥99.0% (cerimetric)

assay

≥99.0% (cerimetric)

assay

≥99.95% trace metals basis

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

grade

reagent grade

grade

-

grade

-

grade

-

mp

70 °C (lit.)

mp

>50 °C (Elimination of water of crystallisation)

mp

>50 °C (Elimination of water of crystallisation)

mp

70 °C (lit.)

form

solid

form

solid

form

solid

form

crystalline

solubility

H2O: 0.5 M at 20 °C, clear, faintly yellow to greenish-yellow

solubility

water: soluble (211 g/l at 20 °C (68 °F))

solubility

water: soluble (211 g/l at 20 °C (68 °F))

solubility

water: soluble

assay

≥99.5% (RT)

assay

≥99.0% (cerimetric)

assay

≥99.0% (cerimetric)

assay

≥99.95% trace metals basis

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100

grade

reagent grade

grade

-

grade

-

grade

-

mp

70 °C (lit.)

mp

>50 °C (Elimination of water of crystallisation)

mp

>50 °C (Elimination of water of crystallisation)

mp

70 °C (lit.)


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Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Gloves



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Reda R Sheha
Journal of colloid and interface science, 388(1), 21-30 (2012-09-25)
Nanocrystalline potassium zinc hexacyanoferrate loaded on nanoscale magnetite substrate was successfully synthesized for significantly enhanced removal of cesium from low-level radioactive wastes. A description was given for preparation and properties of these precursors. The physicochemical properties of these nanocomposites were
Vasiliy N Goral et al.
Lab on a chip, 6(3), 414-421 (2006-03-03)
A microfluidic biosensor with electrochemical detection for the quantification of nucleic acid sequences was developed. In contrast to most microbiosensors that are based on fluorescence for signal generation, it takes advantage of the simplicity and high sensitivity provided by an
Jianxiu Du et al.
Luminescence : the journal of biological and chemical luminescence, 17(3), 165-167 (2002-08-08)
A new flow injection chemiluminescence method is described for the determination of captopril. It is based on the enhancing effect of captopril on the chemiluminescence reaction of luminol with potassium ferricyanide in alkaline solution in the presence of potassium ferrocyanide.



Global Trade Item Number

SKUGTIN
60279-250G04061832659985

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

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