14038-43-8

Basic information

• Product Name: Prussian Blue
• Synonyms: Iron Blue;IRON(III) HEXACYANOFERRATE(II);IRON (III) FERROCYANIDE;ferric hexacyanoferrate (ii);FERRIC FERROCYANIDE;CHINESE BLUE;CI 77510;CI NO 77510
• CAS NO: 14038-43-8
• Molecular Formula: 3C₆FeN₆*4Fe
• Molecular Weight: 859.23
• EINECS: 237-875-5
• Product Categories: Dyes and Pigments;Inorganics
• Mol File: 14038-43-8.mol
• Article Data: 32

Chemical Properties

• Boiling Point: 25.7oC at 760 mmHg
• Appearance: Dark blue/Powder
• Density: 1.8
• Vapor Pressure: 740mmHg at 25°C
• Storage Temp.: Room Temperature
• Water Solubility: practically insoluble
• Sensitive: Hygroscopic
• Stability: Stable. Incompatible with strong acids, strong oxidizing agents, ammonia. Light sensitive.
• Merck: 14,7910
• CAS DataBase Reference: Prussian Blue(CAS DataBase Reference)
• NIST Chemistry Reference: Prussian Blue(14038-43-8)
• EPA Substance Registry System: Prussian Blue(14038-43-8)

Safety Data

• Safety Statements: 22-24/25
• WGK Germany: 1
• RTECS: LJ8200000
• TSCA: Yes
• Hazardous Substances Data: 14038-43-8(Hazardous Substances Data)

Usage

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

Different sources of media describe the Uses of 14038-43-8 differently. You can refer to the following data:
1. An Iron Oxide dye
2. 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.
3. 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.

Flammability and Explosibility

Notclassified

InChI:InChI=1/6CN.Fe/c6*1-2;/q6*-1;+6

Upstream product

• 1345-25-1 iron(II) oxide 
• 74-90-8 hydrogen cyanide 
• 7705-08-0 iron(III) chloride 
• 14589-06-1 tetra-n-butyl ammonium hexacyanoferrate(III) 

Downstream Products

• 7704-34-9 sulfur 

Relevant articles and documents

Prussian Blue modified Metal Organic Frameworks for imaging guided synergetic tumor therapy with hypoxia modulation

In this study, a hybrid material UIO-66-NH2/PB were synthesized through the modification of Prussian Blue on the surface of Metal Organic Frameworks for synergetic tumor therapy with hypoxia modulation. It was found that UIO-66-NH2/PB has good photo-thermal performance and photo-thermal stability, suitable for photo-thermal treatment. Dissolved oxygen analysis showed that UIO-66-NH2/PB can catalyze H2O2 into O2. It was proved that this process is accompanied by the generation of ·OH. Furthermore, with the irradiation of 808 nm for 5min, the TMB solution becomes darker blue, proving that more free radicals are produced. The produced O2 can be used to modulate the hypoxia of tumor to improve the anti-cancer efficiency, and the generated ·OH can kill cancer cells to achieve chemo-dynamic therapy. Doxorubicin (DOX) was selected as a model drug and the DOX loading of UIO-66-NH2/PB was 67%. Drug release experiments showed that DOX was not nearly released in pH 7.4, while 78% DOX was released in pH5.8 after 40 h, demonstrating the excellent pH-responsive release. In addition, with the irradiation of 808 nm for 5min, 87% DOX was released in pH 5.8, indicating photo-thermal effect could help achieve better release effect. The different cytotoxicity to L-02 cells and HeLa cells of UIO-66-NH2/PB shows UIO-66-NH2/PB is only harmful to cancer cells, indicating that Fenton-like reaction only occurred in tumor to generate ·OH. In vivo experiment showed synergetic therapy can achieve satisfactory treatment efficiency. Therefore, UIO-66-NH2/PB is expected to combine multiple treatments to improve anti-cancer effect.

Photosynthesis and characterization of Prussian blue nanocubes on surfaces of TiO2 colloids

Prussian blue (PB) nanocubes were synthesized on the surface of titania (Ti O2) colloids using two-step process with ultraviolet light illumination. The formation of PB nanocubes starts with its nucleation under strong ultraviolet light illumination and followed by a slow growth of the nuclei under low intensity natural light illumination. This kind of PB nanocube has a very low Curie temperature.

Electrochemical Study of Microcrystalline Solid Prussian Blue Particles Mechancally Attached to Graphite and Gold Electrodes: Electrochemically Induced Lattice

The voltammetric behavior of solid Prussian blue mechanically attached to graphite, glassy carbon, or gold electrodes as an array of microscopically small particles is extremely well defined when the electrode is placed in aqueous media containing suitabl

Hierarchical porous hollow FeFe(CN)6 nanospheres wrapped with I-doped graphene as anode materials for lithium-ion batteries

Hierarchical porous hollow FeFe(CN)6 nanospheres were synthesized via a facile anisotropic chemical etching route at different temperatures. Herein, we integrated these FeFe(CN)6 nanospheres and conductive iodine-doped graphene (IG) into a lithium-ion battery (LIB) system, FeFe(CN)6@IG. The hollow Prussian-blue type FeFe(CN)6 nanospheres with an average particle size of 230 nm are uniformly and tightly encapsulated by IG sheets. As an anode material for LIBs, the fabricated FeFe(CN)6@IG exhibits high specific capacity, excellent rate properties, and superior cycling stability. A reversible capacity can be maintained at 709 mA h g-1 after 250 cycles at a current density of 1000 mA g-1. Even at a current rate of 2000 mA g-1, the capacity could reach 473 mA h g-1. This facile fabrication strategy may pave the way for constructing high performance Prussian blue-based anode materials for potential application in advanced lithium-ion batteries.

A novel Prussian blue-magnetite composite synthesized by self-template method and its application in reduction of hydrogen peroxide

A novel Prussian blue (PB)-Fe3O4 composite has been prepared for the first time by self-template method using PB as the precursor. According to this method, Fe3O4 nanoparticles distributed uniformly on the surface of PB cube. The feed ratio of sodium acetate to PB has been proved to be a key factor for magnetic properties and electro-catalysis properties of the composite. Under the experimental conditions, the saturation magnetization value (Ms) of PB-Fe3O4–2 composite was 22 emug?1, while the Ms value of other samples reduced. The composites also showed a good peroxidase-like activity for the oxidation of substrate 3,3,5,5-tetramethylbenzidine (TMB) in the presence of H2O2. The catalytic reduction of hydrogen peroxide capacity was PB-Fe3O4–1>?PB-Fe3O4–2>?PB-Fe3O4–3>?PB-Fe3O4–0, which confirmed the Fe(II) centres in PB surface and Fe3O4 nanoparticles had synergistic effect on catalytic reduction of hydrogen peroxide.

Improved electrochemical performances of LiNi0.6Co0.2Mn0.2O2 cathode material by reducing lithium residues with the coating of Prussian blue

Reducing the lithium residues on the surface of LiNi0.6Co0.2Mn0.2O2 (NCM) cathode is one of the most main challenges in Li-ion battery research. To address this task, a surface coating of Prussian blue (PB) of metal-organic framework is applied to NCM cathode to solve this intractable problem via a simple dry-coating method. The transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) results show that the uniform smooth coating can provide a protective shell to block H2O and CO2 absorption from the air, suppressing lithium residues formed on the surface. The color change experiment between PB and Li residuals illustrates PB can react directly with surface residual lithium species. As a result, the amount of residual lithium, such as LiOH and Li2CO3, is significantly reduced. The 0.5 wt% PB-modified NCM delivers a high discharge capacity retention of 81% after 500 cycles at 1 C discharge rate and exhibits a superior storage property after storing in air for 14 days. Furthermore, electrochemical impedance spectroscopy (EIS) confirms that the PB-NCM could hinder the impedance increase during cycling. These results clearly indicate that the PB coating layer contributes to the reduction of lithium residues and the creation of thinner cathode-electrolyte interface, improving structural stability and cycling performance of NCM.

Electrochemical sensor with record performance characteristics

Nanoelectrode sensor arrays were formed by depositing nanostructures of the electrocatalyst Prussian Blue onto an inert carbon support. The sensor thus obtained showed a high sensitivity toward hydrogen peroxide, with a detection limit of 1 × 10-9 mol L-1 (i.e., 0.03 ppb), and a broad linear calibration range, which extended over seven orders of magnitude (from 10-9 to 10-2 M L-1 H2O 2, see graphic). (Graph Presented).

Formation of Fe2O3 microboxes with hierarchical shell structures from metal-organic frameworks and their lithium storage properties

Fe2O3 microboxes with hierarchically structured shells have been synthesized simply by annealing Prussian blue (PB) microcubes. By utilizing simultaneous oxidative decomposition of PB microcubes and crystal growth of iron oxide shells, we have demonstrated a scalable synthesis of anisotropic hollow structures with various shell architectures. When evaluated as an anode material for lithium ion batteries, the Fe2O3 microboxes with a well-defined hollow structure and hierarchical shell manifested high specific capacity (～950 mA h g-1 at 200 mA g -1) and excellent cycling performance.

Facile fabrication of a Prussian Blue film by direct aerosol deposition on a Pt electrode

A facile aerosol deposition approach, which was simulated as feasible by density functional theory (DFT), was applied to synthesize a Prussian Blue (PB) film directly on a Pt electrode surface.

Ellipsometric investigation of the formation and conversion of Prussian blue films

Ellipsometry has been used to study the formation and electrochromic conversion of Prussian blue films. A Prussian blue film can be deposited on a metal substrate in an appropriate electrolyte by applying a cathodic current. Once grown, a given film can be cycled from its original blue color to a transparent state by applying a cathodic current. The film can also be cycled back to a blue color again with an anodic current; however, the blue film after the first and subsequent cycles has optical properties that differ from the original blue film. At potentials higher than that which return the film to its blue color, the film changes once more, but if the potential is allowed to become too high, the film changes in an irreversible manner.

Graphene-based electrochromic systems: The case of Prussian Blue nanoparticles on transparent graphene film

Prussian Blue nanoparticles were electrodeposited on transparent grapheme film, which showed a promising electrochromism with response times in the range of 3.3-38 s. The Royal Society of Chemistry 2012.

Electrodeposited Prussian blue films: Annealing effect

The correlation between the temperature-dependent electrochromic (EC) activity and other properties of galvanostatically deposited Prussian Blue (PB) films is presented here. Films subjected to annealing treatment in air at temperatures up to 500 °C were characterized by a variety of techniques which include TGA, XRD, FTIR, UV-vis spectrophotometry, SEM, XPS, cyclic voltammetry etc. The as-deposited X-ray amorphous hydrated PB films were blue in color and had Fe in both FeII and FeIII valence states and were electrochromically active. Consequent to changes in the valence state, degree of hydration and coordination environment of the iron ions upon annealing, EC activity and morphology of the films exhibited dramatic changes. Annealing at moderate temperatures retained the blue color of the films and decreased the EC activity consistent with dehydration and decreased the FeII content. Lack of EC activity at higher temperatures was consistent with dehydration and quenching of FeII states accompanied with change of color from blue to rust (FeIII) typical of Fe2O3. Independent of the annealing temperature, the films retained their amorphicity, however, prolonged annealing at 500 °C yielded hexagonal Fe2O3.

Self-assembled films of Prussian blue and analogues: Structure and morphology, elemental composition, film growth, and nanosieving of ions

Structure, morphology, and elemental composition as well as the size-selectivity of the ion transport behavior of ultrathin membranes of iron(III) hexacyanoferrate(II) (FeIIIHCFII), iron(II) hexacyanoferrate(III) (FeIIHCFIII), cobalt(II) hexacyanoferrate(III) (CoIIHCFIII), and nickel(II) hexacynoferrate(III) (NiIIHCFIII) are described. The membranes were prepared upon multiple sequential adsorption of metal cations and hexacyanometalate anions on porous polymer supports. Scanning electron and scanning force microscopy indicate that the membranes of the complex salts consists of a multitude of small, densely packed particles with diameter in the 10-100 nm range. Energy-dispersive X-ray analysis indicates that the ion hexacyanoferrate (Prussian blue) membranes consist of the potassium-rich, so-called soluble modification, KFe[Fe(CN)6], while the membranes of the analogous complex salts consists of a mixture of the potassium-rich and potassium-free modification. The porous, zeolitic structure of the inorganic complex salts was permeable for ions with small Stokes radius such as Cs+, K+, and Cl-, whereas large hydrated ions such as Na+, Li-, Mg2-, or SO42- were blocked. Ion separation became progressively more effective, if the number of complex layers increased. The highest separation factors α(CsCl/NaCl) and α(KCl/NaCl) of 7.7 and 5.9, respectively, were found for the FeIIIHCFII membrane subjected to a hundred dipping cycles. Membranes of iron(II), cobalt(II), and nickel(II) hexacyanoferrate(III) were also useful for ion separation, but the α values were lower. Effects on the ion flux rates caused by the feed concentration and the polyelectrolyte precoating of the support are also discussed.

Neutron diffraction study of Prussian Blue, Fe4[Fe(CN)6]3·xH2O. Location of water molecules and long-range magnetic order

Prussian Blue, Fe4[Fe(CN)6]3·xH2O (x = 14-16), has been studied by powder neutron diffraction in four different states of hydration: dehydrated, x(H,D)2O with a vanishing scattering contribution of hydrogen, xD2O, and xH2O. Structural calculations using diffraction profile analysis reveal two structurally distinguishable kinds of water molecules. Six molecules of water are coordinated to Fe(III) at empty nitrogen sites; approximately eight additional water molecules are present either as isolated molecules at the center of the unit cell octants or as water molecules connected by hydrogen bonds to the coordinated ones. The corresponding O-D-O distance amounts to 2.87 A?. The disordered overall structure is described as a superposition of various ordered substructures. Magnetic contributions to the neutron intensities below the Curie temperature of 5.6 K reveal ferromagnetism. The magnetic part of the intensities corresponds to S = 5/2 of high-spin Fe(III).