Potassium hexacyanoferrate(II) trihydrate

Product Name

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

InChI key

NRYOVBQTVIWDNU-UHFFFAOYSA-N

InChI

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

SMILES string

O.O.O.[K+].[K+].[K+].[K+].N#C[Fe-4](C#N)(C#N)(C#N)(C#N)C#N

grade

reagent grade

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 (CO₃^2-): ≤20 mg/kg
chloride (Cl^-): ≤50 mg/kg
sulfate (SO₄^2-): ≤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

Quality Level

200