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Potassium Hydroxide

KOH
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

CHEMICAL
IDENTIFIER
Formula CAS No. PubChem CID MDL No. EC No IUPAC Name Beilstein
Re. No.
SMILES
Identifier
InChI
Identifier
InChI
Key
KOH 1310-58-3 14797 MFCD00003553 215-181-3 potassium; hydroxide N/A [K+].[OH-] InChI=1S/K.H2O
/h;1H2/q+1;/p-1
KWYUFKZDYYNOTN-UHFFFAOYSA-M

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.

HEALTH, SAFETY & TRANSPORTATION INFORMATION
Danger
H302-H314
C
22-35
26-36/37/39-45
TT2100000
UN 1813 8/PG 2
1
Exclamation Mark-Acute Toxicity Corrosion-Corrosive to metals      

POTASSIUM HYDROXIDE SYNONYMS
Caustic potash, Potash lye, Potassium hydrate

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PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
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

  • Design and synthesis of new potassium channel activators derived from the ring opening of diazoxide: Study of their vasodilatory effect, stimulation of elastin synthesis and inhibitory effect on insulin release. Bouider N, Fhayli W, Ghandour Z, Boyer M, Harrouche K, Florence X, Pirotte B, Lebrun P, Faury G, Khelili S. Bioorg Med Chem. 2015 Feb 27.
  • Geostatistical approach for management of soil nutrients with special emphasis on different forms of potassium considering their spatial variation in intensive cropping system of West Bengal, India. Chatterjee S, Santra P, Majumdar K, Ghosh D, Das I, Sanyal SK. Environ Monit Assess. 2015 Apr
  • Effect of glucose-insulin-potassium on hyperlactataemia in patients undergoing valvular heart surgery: A prospective, randomised controlled study. Un Roh G, Shim JK, Song JW, Kang HM, Kwak YL. Eur J Anaesthesiol. 2015 Mar 10.
  • Potassium Abnormalities in Current Clinical Practice: Frequency, Causes, Severity and Management. Eliacik E, Yildirim T, Sahin U, Kizilarslanoglu C, Tapan U, Aybal-Kutlugun A, Hascelik G, Arici M. Med Princ Pract. 2015 Mar 11.
  • Comparison of urinary sodium and potassium in children older than two with idiopathic hypercalciuria and a healthy control group in Bandar-Abbas, Iran, in 2013. Ajdadi E, Esteghamati M, Ghasemi K, Shahvari SZ. Electron Physician. 2014 Jul 1
  • Effects of extracellular potassium diffusion on electrically coupled neuron networks. Wu XX, Shuai J. Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Feb
  • Ionotropic cross-linked carbo-protein micro matrix system: An approach for improvement of drug release, compaction and tabletting behavior of losartan potassium. Khandai M, Chakraborty S, Ghosh AK. Curr Drug Deliv. 2015 Mar 10.
  • Effect of Dietary Sodium and Potassium Intake on Left Ventricular Diastolic Function and Mass in Adults ≤40 Years (from the Strong Heart Study). Haring B, Wang W, Lee ET, Jhamnani S, Howard BV, Devereux RB. Am J Cardiol. 2015 Feb 12.
  • Effect of adenosine triphosphate-sensitive potassium activation on peripheral and central pain sensitization. Shen S, Cao S, Huang S, Chen J. J Surg Res. 2015 Jan 28.
  • Magnolol and honokiol regulate the calcium-activated potassium channels signaling pathway in enterotoxigenic Escherichia coli-induced diarrhea mice. Deng Y, Han X, Tang S, Xiao W, Tan Z, Zhou C, Wang M, Kang J. Eur J Pharmacol. 2015 Mar 11.
  • Extracellular sodium and potassium levels modulate cardiac conduction in mice heterozygous null for the Connexin43 gene. George SA, Sciuto KJ, Lin J, Salama ME, Keener JP, Gourdie RG, Poelzing S. Pflugers Arch. 2015 Mar 14.
  • Two-pore-domain potassium channels: regulators of many cellular functions. Budde T, Daut J, Kurtz A, Pape HC. Pflugers Arch. 2015 Mar 14.
  • Comparison of modified Chicago sky blue stain and potassium hydroxide mount for the diagnosis of dermatomycoses and onychomycoses. Liu Z, Sheng P, Yang YP, Li W, Huang WM, Wang JD, Fan YM. J Microbiol Methods. 2015 Mar 9
  • Pretreatment of wheat straw with potassium hydroxide for increasing enzymatic and microbial degradability. Liu X, Zicari SM, Liu G, Li Y, Zhang R. Bioresour Technol. 2015 Feb 17
  • [New potassium binders effective: treatment of hyperkalaemia secondary to RAAS inhibitors]. Hoorn EJ. Ned Tijdschr Geneeskd. 2015
  • Effects of different cavity-disinfectants and potassium titanyl phosphate laser on microtensile bond strength to primary dentin. Oznurhan F, Ozturk C, Ekci ES. Niger J Clin Pract. 2015 May-Jun
  • Palpitations, potassium and the pump. Weiss JN. J Physiol. 2015 Mar 15
  • Nitric oxide influences potassium currents in inner hair cells isolated from guinea-pig cochlea. Kimitsuki T. Auris Nasus Larynx. 2015 Mar 10.
  • Erratum to: The Protective Effect of Epoxyeicosatrienoic Acids on Cerebral Ischemia/Reperfusion Injury is Associated with PI3K/Akt Pathway and ATP-Sensitive Potassium Channels. Qu YY, Yuan MY, Liu Y, Zhu YL, Xiao XJ. Neurochem Res. 2015 Mar 14.
  • Soil microbial response to waste potassium silicate drilling fluid. Yao L, Anne Naeth M, Jobson A. J Environ Sci (China). 2015 Mar 1

Recent Research & Development for Hydroxide

  • Hydrothermal carbonization (HTC) of wheat straw: Influence of feedwater pH prepared by acetic acid and potassium hydroxide. Reza MT, Rottler E, Herklotz L, Wirth B. Bioresour Technol. 2015 Apr
  • Novel styrylbenzothiazolium dye-based sensor for mercury, cyanide and hydroxide ions. Gwon SY, Rao BA, Kim HS, Son YA, Kim SH. Spectrochim Acta A Mol Biomol Spectrosc. 2015 Feb 26
  • Rapid screening of phytoremediation effluents by off-line tetramethylammonium hydroxide assisted thermochemolysis. Poerschmann J, Schultze-Nobre L. Sci Total Environ. 2015 Mar 12
  • Arsenic sorption onto titanium dioxide, granular ferric hydroxide and activated alumina: Batch and dynamic studies. Lescano MR, Passalía C, Zalazar CS, Brandi RJ. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2015 Mar 21
  • Pretreatment of wheat straw with potassium hydroxide for increasing enzymatic and microbial degradability. Liu X, Zicari SM, Liu G, Li Y, Zhang R. Bioresour Technol. 2015 Feb 17
  • Oxidation of CO on a carbon-based material composed of nickel hydroxide and hydroxyl graphene oxide, (Ni4(OH)3-hGO) - a first-principles calculation. Yeh CH, Ho JJ. Phys Chem Chem Phys. 2015 Mar 4
  • Ni/Ti layered double hydroxide: synthesis, characterization and application as a photocatalyst for visible light degradation of aqueous methylene blue. Roy Chowdhury P, Bhattacharyya KG. Dalton Trans. 2015 Mar 12.
  • Efficient Uranium Capture by Polysulfide/Layered Double Hydroxide Composites. Ma S, Huang L, Ma L, Shim Y, Islam SM, Wang P, Zhao LD, Wang S, Sun G, Yang X, Kanatzidis MG. J Am Chem Soc. 2015 Mar 10.
  • Mechanisms of Reactions of Sulfur Hydride Hydroxide: Tautomerism, Condensations, and C-Sulfenylation and O-Sulfenylation of 2,4-Pentanedione. Freeman F. J Phys Chem A. 2015 Mar 12.
  • Unique Hydrogen-Bonded Complex of Hydronium and Hydroxide Ions. Stapf M, Seichter W, Mazik M. Chemistry. 2015 Mar 10.
  • Ultrathin platinum nanowires grown on single-layered nickel hydroxide with high hydrogen evolution activity. Yin H, Zhao S, Zhao K, Muqsit A, Tang H, Chang L, Zhao H, Gao Y, Tang Z. Nat Commun. 2015 Mar 2
  • A titration model for evaluating calcium hydroxide removal techniques. Phillips M, McCLANAHAN S, Bowles W. J Appl Oral Sci. 2015 Jan-Feb
  • Polypropylene/Layered Double Hydroxide (LDH) Nanocomposites: Influence of LDH Particle Size on the Crystallization Behavior of Polypropylene. Nagendra B, Mohan K, Bhoje Gowd E. ACS Appl Mater Interfaces. 2015 Mar 5.
  • Theoretical investigation on the mechanism and dynamics of oxo exchange of neptunyl(vi) hydroxide in aqueous solution. Yang X, Chai Z, Wang D. Phys Chem Chem Phys. 2015 Mar 4
  • Optimization of alkaline sulfite pretreatment and comparative study with sodium hydroxide pretreatment for improving enzymatic digestibility of corn stover. Liu H, Pang B, Wang H, Li H, Lu J, Niu M. J Agric Food Chem. 2015 Mar 15.
  • Adsorption of Sb(III) and Sb(V) on Freshly Prepared Ferric Hydroxide (FeOxHy). He Z, Liu R, Liu H, Qu J. Environ Eng Sci. 2015 Feb 1
  • The Metal-Organic Framework MIL-53(Al) Constructed from Multiple Metal Sources: Alumina, Aluminum Hydroxide, and Boehmite. Li Z, Wu YN, Li J, Zhang Y, Zou X, Li F. Chemistry. 2015 Mar 10.
  • Characterization of typical aquatic humic substances in areas of sugarcane cultivation in Brazil using tetramethylammonium hydroxide thermochemolysis. Tadini AM, Constantino IC, Nuzzo A, Spaccini R, Piccolo A, Moreira AB, Bisinoti MC. Sci Total Environ. 2015 Mar 7
  • Comparison of modified Chicago sky blue stain and potassium hydroxide mount for the diagnosis of dermatomycoses and onychomycoses. Liu Z, Sheng P, Yang YP, Li W, Huang WM, Wang JD, Fan YM. J Microbiol Methods. 2015 Mar 9
  • Tuning Complex Transition Metal Hydroxide Nanostructures as Active Catalysts for Water Oxidation by a Laser-Chemical Route. Niu KY, Lin F, Jung S, Fang L, Nordlund D, McCrory CC, Weng TC, Ercius P, Doeff MM, Zheng H. Nano Lett. 2015 Mar 3.