Skip to Page Content

Potassium Hexacyanoferrate(II) Trihydrate

K4Fe(CN)6 • 3H2O
CAS 14459-95-1

Product Product Code Request Quote
(2N) 99% Potassium Hexacyanoferrate(II) Trihydrate      K-CYFE6-02-3HYD Request Quote
(3N) 99.9% Potassium Hexacyanoferrate(II) Trihydrate K-CYFE6-03-3HYD Request Quote
(4N) 99.99% Potassium Hexacyanoferrate(II) Trihydrate K-CYFE6-04-3HYD Request Quote
(5N) 99.999% Potassium Hexacyanoferrate(II) Trihydrate K-CYFE6-05-3HYD Request Quote

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 Model As 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 element page.

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 element page.

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)-

Potassium 2-Ethylhexanoate Potassium Oxide Potassium Chloride Potassium Acetate Potassium Wire
Potassium Nitrate Potassium Metal Potassium Oxide Pellets Potassium Sodium Alloy Potassium Sputtering Target
Potassium Oxide Nanopowder Potassium Oxide Powder Potassium Foil Silver Potassium Cyanide Potassium Pellets
Show Me MORE Forms of Potassium

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.

Have a Question? Ask a Chemical Engineer or Material Scientist
Request an MSDS or Certificate of Analysis

Recent Research & Development for Potassium

  • Laboratory Studies of Potassium-Halide-Induced High-Temperature Corrosion of Superheater Steels. Part 1: Exposures in Dry Air. Hao Wu, Patrik Yrjas, and Mikko Hupa. Energy Fuels: January 23, 2015
  • Iso-Selective Ring-Opening Polymerization of rac-Lactide Catalyzed by Crown Ether Complexes of Sodium and Potassium Naphthalenolates. Jiao Xiong, Jinjin Zhang, Yangyang Sun, Zhongran Dai, Xiaobo Pan, and Jincai Wu. Inorg. Chem.: January 17, 2015
  • Impedance Analysis and Conduction Mechanisms of Lead Free Potassium Sodium Niobate (KNN) Single Crystals and Polycrystals: A Comparison Study. Muhammad Asif Rafiq, Maria Elisabete Costa, Alexander Tkach, and Paula Maria Vilarinho. Crystal Growth & Design: December 16, 2014
  • Measurement and Correlation of the Solubility of Penicillin V Potassium in Ethanol + Water and 1-Butyl Alcohol + Water Systems. Tingting Wei, Chen Wang, Shichao Du, Songgu Wu, Jianyu Li, and Junbo Gong. J. Chem. Eng. Data: December 15, 2014
  • Potassium-Promoted Alumina Adsorbent from K2CO3 Coagulated Alumina Sol for Warm Gas Carbon Dioxide Separation. Shuang Li, Yixiang Shi, and Ningsheng Cai. ACS Sustainable Chem. Eng.: December 8, 2014
  • Effect of Dissolution and Refaceting on Growth Rate Dispersion of Sodium Chlorate and Potassium Dihydrogen Phosphate Crystals. M. M. Mitrovi?, A. A. Žeki, B. M. Misailovi, and B. Z. Radiša. Ind. Eng. Chem. Res.: November 25, 2014
  • Energy and Exergy Analyses of an Integrated Gasification Combined Cycle Power Plant with CO2 Capture Using Hot Potassium Carbonate Solvent. Sheng Li, Hongguang Jin, Lin Gao, Kathryn Anne Mumford, Kathryn Smith, and Geoff Stevens. Environ. Sci. Technol.: November 12, 2014
  • Face-Specific Growth and Dissolution Kinetics of Potassium Dihydrogen Phosphate Crystals from Batch Crystallization Experiments. H. Eisenschmidt, A. Voigt, and K. Sundmacher. Crystal Growth & Design: November 11, 2014
  • Highly Iso-Selective and Active Catalysts of Sodium and Potassium Monophenoxides Capped by a Crown Ether for the Ring-Opening Polymerization of rac-Lactide. Jinjin Zhang, Jiao Xiong, Yangyang Sun, Ning Tang, and Jincai Wu. Macromolecules: November 4, 2014
  • Suzuki–Miyaura Cross-Coupling of Brominated 2,1-Borazaronaphthalenes with Potassium Alkenyltrifluoroborates. Gary A. Molander, Steven R. Wisniewski, and Elham Etemadi-Davan. J. Org. Chem.: October 30, 2014

Recent Research & Development for Iron

  • Polychlorinated biphenyls (PCBs) exert an inhibition on hepcidin expression through an estrogen-like effect associated with disordered systemic iron homeostasis. Yi Qian, Shuping Zhang, Wenli Guo, Juan Ma, Yue Chen, Lei Wang, Meirong Zhao, and Sijin Liu. Chem. Res. Toxicol.: February 16, 2015
  • pH-Responsive Iron Manganese Silicate Nanoparticles as T1-T2* Dual-Modal Imaging Probes for Tumor Diagnosis. Jian Chen, Weijie Zhang, Zhen Guo, Haibao Wang, Dongdong Wang, Jiajia Zhou, and Qianwang Chen. ACS Appl. Mater. Interfaces: February 16, 2015
  • Hollow Iron Oxide Nanoparticles in Polymer Nanobeads as MRI Contrast Agents. Nadja C Bigall, Enrico Dilena, Dirk Dorfs, Marie-Lys Beoutis, Giammarino Pugliese, Claire Wilhelm, Florence Gazeau, Abid Ali Khan, Alexander M Bittner, Miguel Angel Garcia, Mar Garcia-Hernandez, Liberato Manna, and Teresa Pellegrino. J. Phys. Chem. C: February 16, 2015
  • Stable isotopes and iron oxide mineral products as markers of chemodenitrification. L Camille Jones, Brian Peters, Juan S. Lezama Pacheco, Karen Casciotti, and Scott Fendorf. Environ. Sci. Technol.: February 16, 2015
  • Preparation of Unsupported Iron Fischer-Tropsch Catalyst by Simple, Novel, Solvent Deficient Precipitation (SDP) Method. Kyle M. Brunner, Grant E. Harper, Kamyar Keyvanloo, Brian F. Woodfield, Calvin H. Bartholomew, and William C. Hecker. Energy Fuels: February 15, 2015
  • Manganese Doped Iron Oxide Theranostic Nanoparticles for Combined T1 Magnetic Resonance Imaging and Photothermal Therapy. Mengxin Zhang, Yuhua Cao, Lina Wang, Yufei Ma, Xiaolong Tu, and Zhijun Zhang. ACS Appl. Mater. Interfaces: February 12, 2015
  • Iron- and Indium-Catalyzed Reactions toward Nitrogen- and Oxygen-Containing Saturated Heterocycles. Johan Cornil, Laurine Gonnard, Charlélie Bensoussan, Anna Serra-Muns, Christian Gnamm, Claude Commandeur, Malgorzata Commandeur, Sébastien Reymond, Amandine Guérinot, and Janine Cossy. Acc. Chem. Res.: February 12, 2015
  • Unraveling the structure of Iron(III) oxalate tetrahydrate and its reversible Li insertion capability. Hania Ahouari, Gwenaelle Rousse, Juan Jose Rodriguez-Carvajal, Moulay Tahar Sougrati, Matthieu Saubanère, Matthieu Courty, Nadir Recham, and Jean-Marie Tarascon. Chem. Mater.: February 12, 2015
  • Role of Surface Chemistry and Morphology in Reactive Adsorption Of H2S on Iron (Hydr)oxides/Graphite Oxide Composites. Javier A. Arcibar-Orozco, Rajiv Wallace, Joshua K. Mitchell, and Teresa J Bandosz. Langmuir: February 12, 2015
  • Surface and Interfacial Engineering of Iron Oxide Nanoplates for Highly Efficient Magnetic Resonance Angiography. Zijian Zhou, Changqiang Wu, Hanyu Liu, Xianglong Zhu, Zhenghuan Zhao, Lirong Wang, Ye Xu, Hua Ai, and Jinhao Gao. ACS Nano: February 11, 2015