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Potassium hexacyanoferrate(II) trihydrate

for analysis EMSURE® ACS,ISO,Reag. Ph Eur

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Synonym(s):
Potassium hexacyanoferrate(II) trihydrate, Potassium ferrocyanide
Linear Formula:
K4[Fe(CN)6] · 3H2O
CAS Number:
Molecular Weight:
422.39
MDL number:
EC Index Number:
237-722-2

grade

ACS reagent

Quality Level

Agency

reag. ISO
reag. Ph. Eur.

product line

EMSURE®

Assay

99.0-102.0% (cerimetric)

form

solid

potency

3613 mg/kg LD50, oral (Rat)

impurities

≤0.005% Insoluble matter

pH

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

mp

>50 °C (Elimination of water of crystallisation)

bulk density

950‑1050 kg/m3

anion traces

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

cation traces

Na: ≤0.01%
Pb: ≤0.002%

storage temp.

2-30°C

InChI

1S/6CN.Fe.4K.3H2O/c6*1-2;;;;;;;;/h;;;;;;;;;;;3*1H2/q6*-1;+2;4*+1;;;

InChI key

UTYXJYFJPBYDKY-UHFFFAOYSA-N

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This Item
P938760279P3289
Potassium hexacyanoferrate(II) trihydrate BioUltra, ≥99.5% (RT)

Sigma-Aldrich

60279

Potassium hexacyanoferrate(II) trihydrate

Premium Grade
assay

99.0-102.0% (cerimetric)

assay

≥98.5%

assay

≥99.5% (RT)

assay

98.5-102.0%

form

solid

form

powder

form

solid

form

powder

impurities

≤0.005% Insoluble matter

impurities

-

impurities

insoluble matter, passes filter test

impurities

≤0.005% Insoluble matter

pH

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

pH

8-10 (25 °C, 211 g/L)

pH

8.0-10.0 (25 °C, 0.5 M in H2O)

pH

8-10 (25 °C, 211 g/L)

mp

>50 °C (Elimination of water of crystallisation)

mp

70 °C (lit.)

mp

70 °C (lit.)

mp

70 °C (lit.)

Linkage

Replaces: PX1460; PX1460-1; PX1460-20

Analysis Note

Assay (cerimetric): 99.0 - 102.0 %
Insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.005 %
Na (Sodium): ≤ 0.01 %
Pb (Lead): ≤ 0.002 %
Corresponds to ACS,ISO,Reag. Ph Eur

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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