Potassium ferricyanide

Base Information

• Chemical Name: Potassium ferricyanide
• CAS No.: 13746-66-2
• Deprecated CAS: 2002-18-8,409-16-5,1419873-89-4
• Molecular Formula: K3Fe^.(CN)6
• Molecular Weight: 329.27
• Hs Code.: 28372000
• European Community (EC) Number: 237-323-3
• ICSC Number: 1132
• Wikipedia: Potassium ferricyanide,Potassium_ferricyanide
• Mol file: 13746-66-2.mol

Synonyms:K3Fe(CN)6;potassium ferricyanide;potassium hexacyanoferrate (III)

Chemical Property of Potassium ferricyanide

Chemical Property:

• Appearance/Colour: orange to red crystals
• Vapor Pressure: 0Pa at 20℃
• Melting Point: °Cd ec.)
• Boiling Point: 25.7oC at 760 mmHg
• PSA: 142.74000
• Density: 1.85 g/cm³
• LogP: 0.09818
• Storage Temp.: Store at RT.
• Sensitive.: Light Sensitive
• Solubility.: H2O: 1 M at 20 °C, complete, orange-brown
• Water Solubility.: 464 g/L (20 ºC)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 12
• Rotatable Bond Count: 0
• Exact Mass: 328.844499
• Heavy Atom Count: 16
• Complexity: 127

Purity/Quality:

99% ^*data from raw suppliers

Potassium ferricyanide ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 32-20/21/22
• Safety Statements: 50A-36

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metals, Inorganic Compounds
• Canonical SMILES: [C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[C-]#N.[K+].[K+].[K+].[Fe+3]
• Inhalation Risk: A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
• Effects of Short Term Exposure: The substance is mildly irritating to the eyes, skin and respiratory tract.
• Description: Red prussiate (IUPAC name Potassium hexacyanoferrate(III), also known as red prussiate of Potash, Prussian red, and potassium ferricyanide) occurs as bright red crystals which are soluble in water. Potassium ferricyanide is manufactured by passing chlorine into a solution of potassium ferrocyanide. It is not considered to be toxic but is dangerous when heated or mixed with other chemicals. Potassium ferricyanide is used to prepare Prussian Blue, the deep blue pigment in blue printing. It is used for the testing for ferrous ions. Potassium ferricyanide is widely used as an oxidizing agent in photographic processing to remove silver from negatives and positives, a process called dot etching.? In color photograph, potassium ferricyanide is used to reduce the size of color dots without reducing their number, as a kind of manual color correction. Potassium ferricyanide is often used in physiological experiments as a means of increasing a solutions redox potential (Eo 436 mV at pH 7). Potassium ferricyanide is applied to harden iron and steel, in electroplating, dyeing wool and as a laboratory reagent. It is a mild oxidizing agent used in organic synthesis. It is associated with potassium hydroxide solution used to formulate Murakami‘s etchant, which is useful for metallographers to provide contrast between binder and carbide phases in cemented carbides. Further, it is used in many amperometric biosensors as an electron transfer agent replacing an enzyme's natural electron transfer agent such as oxygen with the enzyme glucose oxidase. It is an active ingredient in blood glucose meters used by diabetics. Potassium ferricyanide can be used as chromogenic reagent for the determination of captopril, the first orally active angiotensin converting enzyme inhibitor, which is applied for the treatment of hypertension, coronary heart disease and congestive heart failure in clinical medicine.
• Uses: Potassium ferricyanide (Prussian Red) is an orange solid, It is mainly used as a pigment for staining or in photography, but also in analytical chemistry for its oxidizing properties. Potassium ferricyanide(III) is a potassium salt widely employed as an external indicator in potassium dichromate titrations. A sensor containing potassium ferricyanide assisted enzyme electrode for estimating maltose and glucose in samples has been reported. Addition of potassium ferricyanide in the catholyte can improve the generation of power in microbial fuel cells (MFCs). It is used in many amperometric biosensors as an electron transfer agent replacing an enzyme's natural electron transfer agent with the enzyme glucose oxidase. It is a major component of Murakami's etchant for cemented carbides. Chiefly for blueprints; in photography; also for staining wood, dyeing wool, calico printing, as etching liquid (Mercer's liquor), tempering iron and steel; in electroplating; as a mild oxidizing agent in organic synthesis; in analytical chemistry. Also known as red prussiate of potash, this deep red crystal was made by passing chlorine gas through a solution of potassium ferrocyanide. The crystals are soluble in water but less so in alcohol. Potassium ferricyanide was used with ferric ammonium citrate to sensitize paper for the cyanotype process and mixed with hypo to make Farmer’s reducer which was used to reduce the density of silver-based images.