Potassium Hexacyanoferrate(II) Trihydrate

K4Fe(CN)6 • 3H2O
CAS 14459-95-1

Product Product Code Order or Specifications
(2N) 99% Potassium Hexacyanoferrate(II) Trihydrate      K-CYFE6-02-3HYD Contact American Elements
(3N) 99.9% Potassium Hexacyanoferrate(II) Trihydrate K-CYFE6-03-3HYD Contact American Elements
(4N) 99.99% Potassium Hexacyanoferrate(II) Trihydrate K-CYFE6-04-3HYD Contact American Elements
(5N) 99.999% Potassium Hexacyanoferrate(II) Trihydrate K-CYFE6-05-3HYD Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No IUPAC Name SMILES
K4Fe(CN)6 • 3H2O 14459-95-1 135118307 161067
MFCD00167023 237-722-2 tetrapotassium; iron(2+); hexacyanide; trihydrate [Fe+2].[K+].[K+].

PROPERTIES Compound Formula Mol. Wt. Appearance Melting Point Boiling Point Density

Exact Mass

Monoisotopic Mass Charge MSDS
C6H6FeK4N6O3 422.39 Yellow crystals 70 °C N/A 1.85 g/cm3 421.839902 421.839902 0 Safety Data Sheet

Potassium Hexacyanoferrate(II) Trihydrate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Potassium (K) atomic and molecular weight, atomic number and elemental symbol Elemental PotassiumPotassium (atomic symbol: K, atomic number: 19) is a Block S, Group 1, Period 4 element with an atomic weight of 39.0983. The number of electrons in each of Potassium's shells is [2, 8, 8, 1] and its electron configuration is [Ar] 4s1. The potassium atom has a radius of 227.2 pm and a Van der Waals radius of 275 pm. Potassium was discovered and first isolated by Sir Humphrey Davy in 1807. Potassium is the seventh most abundant element on earth. It is one of the most reactive and electropositive of all metals and rapidly oxidizes. Potassium Bohr ModelAs with other alkali metals, potassium decomposes in water with the evolution of hydrogen; because of its reacts violently with water, it only occurs in nature in ionic salts. In its elemental form, potassium has a silvery gray metallic appearance, but its compounds (such as potassium hydroxide) are more frequently used in industrial and chemical applications. The origin of the element's name comes from the English word 'potash,' meaning pot ashes, and the Arabic word 'qali,' which means alkali. The symbol K originates from the Latin word 'kalium'. For more information on potassium, including properties, safety data, research, and American Elements' catalog of potassium products, visit the Potassium Information Center.

Iron (Fe) atomic and molecular weight, atomic number and elemental symbolIron (atomic symbol: Fe, atomic number: 26) is a Block D, Group 8, Period 4 element with an atomic weight of 55.845. The number of electrons in each of Iron's shells is 2, 8, 14, 2 and its electron configuration is [Ar] 3d6 4s2.Iron Bohr Model The iron atom has a radius of 126 pm and a Van der Waals radius of 194 pm. Iron was discovered by humans before 5000 BC. In its elemental form, iron has a lustrous grayish metallic appearance. Elemental Iron Iron is the fourth most common element in the Earth's crust and the most common element by mass forming the earth as a whole. Iron is rarely found as a free element, since it tends to oxidize easily; it is usually found in minerals such as magnetite , hematite, goethite, limonite, or siderite. Though pure iron is typically soft, the addition of carbon creates the alloy known as steel, which is significantly stronger. For more information on iron, including properties, safety data, research, and American Elements' catalog of iron products, visit the Iron Information Center.

Material Safety Data Sheet MSDS
Signal Word N/A
Hazard Statements H412
Hazard Codes 32-52/53
Risk Codes 22-24/25-47-61
Safety Precautions N/A
RTECS Number LJ9219000
Transport Information UN 3077 9/PG III
WGK Germany 2
Globally Harmonized System of
Classification and Labelling (GHS)

Potassium ferricyanide trihydrate; Potassium Ferrocyanide Trihydrate; Yellow prussiate; Iron(2+) potassium cyanide hydrate (1:4:6:3); tetrapotassium iron(2+) hexacyanide trihydrate; Ferrate(4-), hexakis(cyano-C)-, tetrapotassium, trihydrate, (OC-6-11)-

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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

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Recent Research & Development for Potassium

  • Dragoslav Ilić, Verica V. Jevtić, Miorad M. Vasojević, Miodrag Ž. Jelić, Ivana D. Radojević, Ljiljana R. Čomić, Slađana B. Novaković, Goran A. Bogdanović, Ivan Potočňák, Srećko R. Trifunović, Stereospecific ligands and their complexes. Part XXI. Synthesis, characterization, circular dichroism and antimicrobial activity of cobalt(III) complexes with some edda-type of ligands. Crystal structure of potassium-Δ-(−)589-s-cis-oxalato-(S,S)-ethylenediamine-N,N′-di-(2-propanoato)-cobaltate(III)-semihydrate, K-Δ-(−)589-s-cis-[Co(S,S-eddp)(ox)]·0.5H2O, Polyhedron, Volume 85, 8 January 2015
  • T. Palacios, J. Reiser, J. Hoffmann, M. Rieth, A. Hoffmann, J.Y. Pastor, Microstructural and mechanical characterization of annealed tungsten (W) and potassium-doped tungsten foils, International Journal of Refractory Metals and Hard Materials, Volume 48, January 2015
  • Prasanna Padigi, Gary Goncher, David Evans, Raj Solanki, Potassium barium hexacyanoferrate – A potential cathode material for rechargeable calcium ion batteries, Journal of Power Sources, Volume 273, 1 January 2015
  • V.G. Goffman, A.V. Gorokhovsky, M.M. Kompan, E.V. Tretyachenko, O.S. Telegina, A.V. Kovnev, F.S. Fedorov, Electrical properties of the potassium polytitanate compacts, Journal of Alloys and Compounds, Volume 615, Supplement 1, 5 December 2014
  • Jorge Omar Gil Posada, Peter J. Hall, Post-hoc comparisons among iron electrode formulations based on bismuth, bismuth sulphide, iron sulphide, and potassium sulphide under strong alkaline conditions, Journal of Power Sources, Volume 268, 5 December 2014
  • Renan Azevedo da Rocha, Carolina Leão Quintanilha, Thayná Viana Lanxin, Júlio Carlos Afonso, Cláudio Augusto Vianna, Valdir Gante, José Luiz Mantovano, Production of potassium manganate and barium manganate from spent zinc–MnO2 dry cells via fusion with potassium hydroxide, Journal of Power Sources, Volume 268, 5 December 2014
  • Kaiyou Zhang, Hong Chen, Xue Wang, Donglin Guo, Chenguo Hu, Shuxia Wang, Junliang Sun, Qiang Leng, Synthesis and structure determination of potassium copper selenide nanowires and solid-state supercapacitor application, Journal of Power Sources, Volume 268, 5 December 2014
  • Elena Yazhenskikh, Tatjana Jantzen, Klaus Hack, Michael Müller, Critical thermodynamic evaluation of oxide systems relevant to fuel ashes and slags: Potassium oxide–magnesium oxide–silica, Calphad, Volume 47, December 2014
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  • C. Balbuena, M.A. Frechero, R.A. Montani, Channel diffusion in a lithium–potassium metasilicate glass using the isoconfigurational ensemble: Towards a scenario for the mixed alkali effect, Journal of Non-Crystalline Solids, Volume 405, 1 December 2014

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  • L. Yang, F. Gao, R.J. Kurtz, X.T. Zu, Atomistic simulations of helium clustering and grain boundary reconstruction in alpha-iron, Acta Materialia, Volume 82, 1 January 2015
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  • Q.C. Fan, X.Q. Jiang, Z.H. Zhou, W. Ji, H.Q. Cao, Constitutive relationship and hot deformation behavior of Armco-type pure iron for a wide range of temperature, Materials & Design, Volume 65, January 2015
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