ChemicalBook CAS DataBase List 14038-43-8

14038-43-8

Name	Prussian Blue
CAS	14038-43-8
EINECS(EC#)	237-875-5
Molecular Formula	C18Fe7N18
MDL Number	MFCD00135663
Molecular Weight	859.23
MOL File	14038-43-8.mol

Chemical Properties

Definition	The most common and best- known name for blue iron ferrocyanide (iron blue) pigments made by a variety of procedures.
Appearance	dark blue crystalline powder
density	1.8
storage temp.	Room Temperature
solubility	insoluble in H2O, dilute acid solutions, organic solvents
form	Powder
color	Dark blue
Stability:	Stable. Incompatible with strong acids, strong oxidizing agents, ammonia. Light sensitive.
Water Solubility	practically insoluble
Sensitive	Hygroscopic
Merck	14,7910
Solubility Product Constant (Ksp)	pKsp: 40.52
Exposure limits	ACGIH: TWA 1 mg/m3 NIOSH: IDLH 25 mg/m3; TWA 1 mg/m3
InChI	InChI=1S/18CN.7Fe/c181-2;;;;;;;/q;;;;;;;;;;;;;;;;;;3-4;4*+3
InChIKey	DNMNDNSFJMUUFM-UHFFFAOYSA-N
SMILES	[Fe-4](C#N)(C#N)(C#N)(C#N)(C#N)C#N.[Fe-4](C#N)(C#N)(C#N)(C#N)(C#N)C#N.[Fe-4](C#N)(C#N)(C#N)(C#N)(C#N)C#N.[Fe+3].[Fe+3].[Fe+3].[Fe+3]
LogP	-0.250 (est)
EPA Substance Registry System	Ferrate(4-), hexakis(cyano-.kappa.C)-, iron(3+) (3:4), (OC-6-11)-(14038-43-8)

Safety Data

Safety Statements	22-24/25 less more
WGK Germany	1
RTECS	LJ8200000
TSCA	Yes
HS Code	32041990
Hazardous Substances Data	14038-43-8(Hazardous Substances Data)
Toxicity	mouse,LD,oral,> 8gm/kg (8000mg/kg),Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 35(1), Pg. 35, 1991. less more

Raw materials And Preparation Products

Hazard Information

Chemical Properties

dark blue crystalline powder

Uses

An Iron Oxide dye

Description

Iron blue is chemically referred to as ferric ammonium ferrocyanide Fe(Fe(CN)6)3. This material is generated through the reaction of sodium ferrocyanide and ferrous sulfate in the presence of ammonium sulfate. Pigments prepared with sodium or potassium salts are called ferric ferrocyanide.

Origin

Ferric hexacyanoferrate(II), known as Prussian blue, has the empirical formula Fe4[Fe(CN)6]3. It was probably synthesized for the first time by the paint maker Diesbach in Berlin in 1704, and it was one of the first synthetic pigments. A number of different, even if chemically related compounds, are named Prussian blue. Here this term refers only to insoluble ferric hexacyanoferrate(II)[1].

Flammability and Explosibility

Notclassified

References

[1] Crisponi, G. and V. Nurchi. “Chelating Agents as Therapeutic Compounds—Basic Principles.” Chelation Therapy in the Treatment of Metal Intoxication (2016) 35-61.
[2] Karyakin, A. “Chemical and biological sensors based on electroactive inorganic polycrystals.”Electrochemical Sensors, Biosensors and their Biomedical Applications (2008) 411-439.

Structure and conformation

Prussian blue has a basic cubic structure consisting of alternating iron(II) and iron(III) located on a face centered cubic lattice, in such a way that the iron(III) ions are surrounded octahedrically by nitrogen atoms, and iron(II) ions are surrounded by carbon atoms[2].

Material Safety Data Sheet(MSDS)

Spectrum Detail

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