Prussian Blue Property

Density 

1.8

storage temp. 

Room Temperature

solubility 

insoluble in H2O, dilute acid solutions, organic solvents

form 

Powder

color 

Dark blue

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

Stability:

Stable. Incompatible with strong acids, strong oxidizing agents, ammonia. Light sensitive.

InChI

InChI=1S/18CN.7Fe/c18*1-2;;;;;;;/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

Iron ferrocyanide (Fe4[Fe(CN)6]3) (14038-43-8)

Safety

Safety Statements 

22-24/25

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.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H312Harmful in contact with skin

H332Harmful if inhaled

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P322Specific measures (see …on this label).

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

Prussian Blue Chemical Properties,Usage,Production

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.

Chemical Properties

dark blue crystalline powder

Uses

Prussian blue (KFe(Fe(CN)6)) is an intense reddish blue pigment with fairly good properties. It is used as a coloring pigment in many types of paint systems and is also used in the production of lead chrome greens.

Uses

Iron(III) hexacyanoferrate(II) is uses extensively as an Iron Oxide dye. Prussian blue is used as a paint and wallpaper printing, chemical coatings, carbon paper and in the plastics industry. as an antidote for poisoning with radioactive cesium or thallium. In the metalworking and mechanical engineering Prussian blue is thinly applied as a paste on metal surfaces in order to assess the quality scraped surfaces can.

Definition

The most common and best- known name for blue iron ferrocyanide (iron blue) pigments made by a variety of procedures.

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

Not classified

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].

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.