API reference

Prussian blue

CAS number
14038-43-8
Molecular formula
C18Fe7N18
Molecular weight
859.2 g/mol
Prussian blue — 2D structure
2D structure (PubChem)

About this molecule

Prussian blue is described as a deep blue pigment that is produced when the oxidation of ferrous ferrocyanide salts occurs. It contains ferric hexacyanoferrate(II) in a cubic lattice crystal structure. It is insoluble in water but also tends to form a colloid thus can exist in either colloidal or water-soluble form, and an insoluble form. It is orally administered for clinical purposes to be used as an antidote for certain kinds of heavy metal poisoning, such as thallium and radioactive isotopes of caesium. Prussian blue is included in the World Health Organization Model List of Essential Medicines as a specific antidote used in poisonings to provide symptomatic and supportive treatment. It was also administered in individuals exposed to 137-Cs+ during Goiânia accident, one of the worst radioactive contamination incidents that occured in Brazil, 1983.

Source: DrugBank, via PubChem.

Identifiers

IUPAC name
tris(iron(2+));tetrakis(iron(3+));octadecacyanide
InChIKey
DCYOBGZUOMKFPA-UHFFFAOYSA-N
SMILES
[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3]
PubChem CID
2724251

Also known as

FERRIC FERROCYANIDE · Ferrocin · Berlin Blue · Preussischblau · Ferric hexacyanoferrate · Berliner Blau · Turnbulls Blau · iron(3+) hexacyanoferrate(4-)

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