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Potassium Hydroxide

CAS 1310-58-3

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(2N) 99% Potassium Hydroxide K-OH-02 Request Quote
(2N5) 99.5% Potassium Hydroxide K-OH-025 Request Quote
(3N) 99.9% Potassium Hydroxide K-OH-03 Request Quote
(3N5) 99.95% Potassium Hydroxide K-OH-035 Request Quote
(4N) 99.99% Potassium Hydroxide K-OH-04 Request Quote
(5N) 99.999% Potassium Hydroxide K-OH-05 Request Quote

Formula CAS No. PubChem CID MDL No. EC No IUPAC Name Beilstein
Re. No.
KOH 1310-58-3 14797 MFCD00003553 215-181-3 potassium; hydroxide N/A [K+].[OH-] InChI=1S/K.H2O

PROPERTIES Compound Formula Mol. Wt. Appearance Melting Point Boiling Point Density Exact Mass Monoisotopic Mass Charge MSDS
HKO 56.11 White to yellow crystalline solid 380-406 °C 1327 °C 2.04 g/cm3 55.966446 55.966446 0 Safety Data Sheet

Hydroxide Formula Diagram (-OH)Potassium Hydroxide is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. Hydroxide, the OH- anion composed of an oxygen atom bonded to a hydrogen atom, is commonly present in nature and is one of the most widely studied molecules in physical chemistry. Hydroxide compounds have diverse properties and uses, from base catalysis to detection of carbon dioxide. In a watershed 2013 experiment, scientists at JILA (the Joint Institute for Laboratory Astrophysics) achieved evaporative cooling of compounds for the first time using hydroxide molecules, a discovery that may lead to new methods of controlling chemical reactions and could impact a range of disciplines, including atmospheric science and energy production technologies. 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.

UN 1813 8/PG 2
Exclamation Mark-Acute Toxicity Corrosion-Corrosive to metals      

Caustic potash, Potash lye, Potassium hydrate

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.

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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 Hydroxide

  • Magnetic Properties of the Layered Lanthanide Hydroxide Series YxDy8-x(OH)20Cl4·6H2O: From Single Ion Magnets to 2D and 3D Interaction Effects. Bernardo Monteiro, Joana T. Coutinho, Cláudia C. L. Pereira, Laura C. J. Pereira, Joaquim Marçalo, Manuel Almeida, José J. Baldoví, Eugenio Coronado, and Alejandro Gaita-Ariño. Inorg. Chem.: February 4, 2015
  • Inhibition of Homogeneous Formation of Magnesium Hydroxide by Low-Molar-Mass Poly(acrylic acid) with Different End-Groups. Ali A. Al-Hamzah, Erica J. Smith, and Christopher M. Fellows. Ind. Eng. Chem. Res.: February 3, 2015
  • Quaternized Graphene Oxide Nanocomposites as Fast Hydroxide Conductors. Hadis Zarrin, Jing Fu, Gaopeng Jiang, Skylar Yoo, Jared Lenos, Michael Fowler, and Zhongwei Chen. ACS Nano: February 2, 2015
  • Structural and Chemical Evolution of Amorphous Nickel Iron Complex Hydroxide upon Lithiation/Delithiation. Kai-Yang Niu, Feng Lin, Liang Fang, Dennis Nordlund, Runzhe Tao, Tsu-Chien Weng, Marca Doeff, and Haimei Zheng. Chem. Mater.: January 27, 2015
  • Role of Supports in the Tetrapropylammonium Hydroxide Treated Titanium Silicalite-1 Extrudates. Yi Zuo, Min Liu, Luwei Hong, Mengtong Wu, Ting Zhang, Mengtong Ma, Chunshan Song, and Xinwen Guo. Ind. Eng. Chem. Res.: January 21, 2015
  • A Superlattice of Alternately Stacked Ni–Fe Hydroxide Nanosheets and Graphene for Efficient Splitting of Water. Wei Ma, Renzhi Ma, Chengxiang Wang, Jianbo Liang, Xiaohe Liu, Kechao Zhou, and Takayoshi Sasaki. ACS Nano: January 21, 2015
  • Hydrogen Atom Abstraction from Hydrocarbons by a Copper(III)-Hydroxide Complex. Debanjan Dhar and William B. Tolman. J. Am. Chem. Soc.: January 12, 2015
  • Preparation of Transparent Suspension of Lamellar Magnesium Hydroxide Nanocrystals Using a High-Gravity Reactive Precipitation Combined with Surface Modification. Qian Sun, Bo Chen, Xi Wu, Miao Wang, Cong Zhang, Xiao-Fei Zeng, Jie-Xin Wang, and Jian-Feng Chen. Ind. Eng. Chem. Res.: December 26, 2014
  • Flux-Assisted Fabrication of Vertically Aligned Layered Double Hydroxide Plates on in Situ Formed Alumina Particles. Fumitaka Hayashi, Akemi Shirasaki, Hajime Wagata, Hideya Kamikawa, Yoshie Aoki, Shuji Oishi, and Katsuya Teshima. Crystal Growth & Design: December 17, 2014
  • Two-Dimensional Oxide and Hydroxide Nanosheets: Controllable High-Quality Exfoliation, Molecular Assembly, and Exploration of Functionality. Renzhi Ma and Takayoshi Sasaki. Acc. Chem. Res.: December 9, 2014