MilliporeSigma
All Photos(4)

Documents

P3289

Sigma-Aldrich

Potassium hexacyanoferrate(II) trihydrate

ACS reagent, 98.5-102.0%

Sign Into View Organizational & Contract Pricing

Synonym(s):
Potassium ferrocyanide, Yellow prussiate
Linear Formula:
K4Fe(CN)6 · 3H2O
CAS Number:
Molecular Weight:
422.39
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

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

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
P9387602791.04984
Potassium hexacyanoferrate(II) trihydrate BioUltra, ≥99.5% (RT)

60279

Potassium hexacyanoferrate(II) trihydrate

Premium Grade
assay

98.5-102.0%

assay

≥98.5%

assay

≥99.5% (RT)

assay

99.0-102.0% (cerimetric)

grade

ACS reagent

grade

-

grade

-

grade

ACS reagent

pH

8-10 (25 °C, 211 g/L)

pH

8-10 (25 °C, 211 g/L)

pH

8.0-10.0 (25 °C, 0.5 M in H2O)

pH

9.5 (20 °C, 100 g/L in H2O, anhydrous substance)

impurities

≤0.005% Insoluble matter

impurities

-

impurities

insoluble matter, passes filter test

impurities

≤0.005% Insoluble matter

anion traces

chloride (Cl-): ≤0.01%, sulfate (SO42-): passes test (limit about 0.01%)

anion traces

-

anion traces

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

anion traces

chloride (Cl-): ≤0.01%, sulfate (SO42-): ≤0.005%

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 3

1 of 3

Iron Stain

Sigma-Aldrich

HT20

Iron Stain

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)
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)
Thorsten Litzenburger et al.
Clinical science (London, England : 1979), 134(7), 921-939 (2020-04-03)
Maternal obesity determines obesity and metabolic diseases in the offspring. The white adipose tissue (WAT) orchestrates metabolic pathways, and its dysfunction contributes to metabolic disorders in a sex-dependent manner. Here, we tested if sex differences influence the molecular mechanisms of
Pierre Osteil et al.
Development (Cambridge, England), 146(7) (2019-03-21)
During embryogenesis, the stringent regulation of Wnt activity is crucial for the morphogenesis of the head and brain. The loss of function of the Wnt inhibitor Dkk1 results in elevated Wnt activity, loss of ectoderm lineage attributes from the anterior

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service