Potassium Selenate

CAS 7790-59-2

Product Product Code Order or Specifications
(2N) 99% Potassium Selenate K-SEAT-02 Contact American Elements
(3N) 99.9% Potassium Selenate K-SEAT-03 Contact American Elements
(4N) 99.99% Potassium Selenate K-SEAT-04 Contact American Elements
(5N) 99.999% Potassium Selenate K-SEAT-05 Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No IUPAC Name Beilstein
Re. No.
K2SeO4 7790-59-2 43119764 62680 N/A 232-214-7 potassium selenate N/A [K+].[K+].[O-][Se]([O-])(=O)=O InChI=1S/2K.H2O4Se/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2 YAZJAPBTUDGMKO-UHFFFAOYSA-L

PROPERTIES Compound Formula Mol. Wt. Appearance Density

Exact Mass

Monoisotopic Mass Charge MSDS
K2O4Se 221.1542 N/A 3.07g/cm3 221.823594 221.823593 Da 0 Safety Data Sheet

Selenate IonPotassium Selenate 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.

Selenium Bohr ModelSelenide(Se) atomic and molecular weight, atomic number and elemental symbolSelenium (atomic symbol: Se, atomic number: 34) is a Block P, Group 16, Period 4 element with an atomic radius of 78.96. The number of electrons in each of Selenium's shells is 2, 8, 18, 6 and its electron configuration is [Ar] 3d10 4s2 4p4. The selenium atom has a radius of 120 pm and a Van der Waals radius of 190 pm. Selenium is a non-metal with several allotropes: a black, vitreous form with an irregular crystal structure; three red-colored forms with monoclinic crystal structures; and a gray form with a hexagonal crystal structure, the most stable and dense form of the element. Elemental Selenium One of the mose common uses for selenium is in glass production; the red tint that it lends to glass neutralizes green or yellow tints from impurities in the glass materials. Selenium was discovered and first isolated by Jöns Jakob Berzelius and Johann Gottlieb Gahn in 1817. The origin of the name Selenium comes from the Greek word "Selênê," meaning moon. For more information on selenium, including properties, safety data, research, and American Elements' catalog of selenium products, visit the Selenium Information Center.

Material Safety Data Sheet MSDS
Signal Word Danger
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Precautions N/A
RTECS Number VS6600000
Transport Information N/A
WGK Germany N/A
Globally Harmonized System of
Classification and Labelling (GHS)


Selenic acid, dipotassium salt, dipotassium selenate, selenic acid, selenic acid dipotassium salt

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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
  • Nicolay Yu. Adonin, Anton Yu. Shabalin, Vadim V. Bardin, Hydrodeboration of potassium polyfluoroaryl(fluoro)borates with alcohols, Journal of Fluorine Chemistry, Volume 168, December 2014
  • 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

Recent Research & Development for Selenates

  • Vladislav V. Gurzhiy, Olga S. Tyumentseva, Sergey V. Krivovichev, Ivan G. Tananaev, Novel type of molecular connectivity in one-dimensional uranyl compounds: [K@(18-crown-6)(H2O)][(UO2)(SeO4)(NO3)], a new potassium uranyl selenate with 18-crown-6 ether, Inorganic Chemistry Communications, Volume 45, July 2014
  • Theerathad Sakwarathorn, Sangobtip Pongstabodee, Viwat Vchirawongkwin, Lorenz R. Canaval, Andreas O. Tirler, Thomas S. Hofer, Characteristics of selenate in aqueous solution – An ab initio QMCF-MD study, Chemical Physics Letters, Volumes 595–596, 18 March 2014
  • Nouha Loulou Nkhili, Walid Rekik, Tahar Mhiri, Kamran T. Mahmudov, Maximilian N. Kopylovich, Houcine Naïli, Double piperazinediium and 1,4-diazabicyclo[2.2.2]octanediium MII selenates (MII = CoII, NiII, CuII, ZnII) as effective catalysts for Henry reaction, Inorganica Chimica Acta, Volume 412, 1 March 2014
  • Sivan Klas, Donald W. Kirk, Understanding the positive effects of low pH and limited aeration on selenate removal from water by elemental iron, Separation and Purification Technology, Volume 116, 15 September 2013
  • Berceste Beyribey, Jonathan Hallinder, Finn Willy Poulsen, Nikolaos Bonanos, Mogens Mogensen, Studies of rubidium selenate with secondary phase of RbOH under humidified reducing atmosphere, Journal of Alloys and Compounds, Volume 545, 25 December 2012
  • K. Ozga, A.H. Reshak, J. Berdowski, Z. Tylczyński, A. Wojciechowski, A. Ślęzak, I.V. Kityk, Photoinduced absorption and nonlinear optics of triglycine selenate single crystals under uniaxial pressure, Materials Letters, Volume 65, Issue 11, 15 June 2011
  • Anders Puranen, Mats Jonsson, Rainer Dähn, Daqing Cui, Reduction of selenite and selenate on anoxically corroded iron and the synergistic effect of uranyl reduction, Journal of Nuclear Materials, Volume 406, Issue 2, 15 November 2010
  • Liron Hevroni, Albert Danon, Oxygen isotope exchange during thermal dehydration of copper selenate pentahydrate, Solid State Ionics, Volume 181, Issues 35–36, 9 November 2010
  • D. Marinova, M. Georgiev, D. Stoilova, Vibrational behavior of matrix-isolated ions in Tutton compounds. V. Infrared spectroscopic study of NH4+ and SO42− ions included in zinc sulfates and selenates, Solid State Sciences, Volume 12, Issue 5, May 2010
  • Evert J. Elzinga, Yuanzhi Tang, Jason McDonald, Stephanie DeSisto, Richard J. Reeder, Macroscopic and spectroscopic characterization of selenate, selenite, and chromate adsorption at the solid–water interface of γ-Al2O3, Journal of Colloid and Interface Science, Volume 340, Issue 2, 15 December 2009